bluuebunny/crossref_metadata_2025 huggingface dataset:
Experiences of UK and Irish family carers of people with profound and multiple intellectual disabilities during the COVID-19 pandemic
Authors: Linden Mark , Leonard R , Forbes T , Brown M , Marsh L , Todd S , Hughes N , Truesdale M
Published: December 2023

Background

People with profound and multiple intellectual disabilities (PMID) have high and intensive support needs that ordinarily place significant strain on family carers. This was further heightened by the removal of many external supports during the COVID-19 pandemic. We sought to explore the experiences of family carers of people with PMID during the COVID-19 pandemic and understand what the longer-term impact might be on their lives.

Methods

Focus group interviews (n = 32) were conducted with family carers (n = 126) from the four countries of the UK and the Republic of Ireland. Participants were asked questions relating to their experiences of the COVID-19 pandemic, coping strategies, and challenges faced. All focus groups were conducted using the online platform, Zoom. These were audio recorded, transcribed verbatim and analysed employing inductive thematic analysis.

Findings

Three main themes were generated from the data including (1.0) COVID-19 as a double-edged sword (2.0), The struggle for support (3.0), Constant nature of caring. These included 11 subthemes. (1.1) ‘COVID-19 as a catalyst for change’, (1.2) ‘Challenges during COVID-19: dealing with change’, (1.3) ‘Challenges during COVID-19: fear of COVID-19’, (1.4); ‘The online environment: the new normal’ (2.1) ‘Invisibility of male carers’, (2.2) ‘Carers supporting carers’, (2.3) ‘The only service you get is lip service: non-existent services’, (2.4); ‘Knowing your rights’ (3.1) ‘Emotional response to the caring role: Feeling devalued’, (3.2) ‘Emotional response to the caring role: Desperation of caring’, (3.3) ‘Multiple demands of the caring role.’

Conclusions

The COVID-19 pandemic presented immense challenges to family carers of people with PMID but also provided some opportunities. Families had already struggled to receive many of the supports and services to which they were entitled to only to have these removed at the onset of the pandemic. The experiences of male carers have been largely absent from the literature with this research showing they want to be included in decision making and require tailored support services. Service providers should see the end of the COVID-19 pandemic as providing opportunity to re-examine current provision and design services with family carers. As the direct threat from COVID-19 diminishes and the experiences of those who lived through this period come to the fore, there is a need to re-examine current models and provision of support to family carers to better meet their needs.
Research gaps identified in Iran’s health technology assessment reports
Authors: Mohtasham Farideh , Yazdizadeh Bahareh , Mobinizadeh Mohammadreza
Published: December 2023

Introduction

Identifying gaps in the evidence is a useful byproduct of conducting a health technology assessment (HTA). This study aims to identify research gaps in Iran’s HTA reports.

Method

We reviewed the HTA reports published between 2014 and 2016. Then, we developed two separate questionnaires for principal investigators (PIs) and independent HTA researchers. The questionnaire for independent HTA researchers consisted of four main parts. However, the PIs’ questionnaire consisted of two main parts. We also conducted a literature search in the PubMed database in November 2017 to find frameworks for prioritizing research gaps. We also conducted a semi-structured interview with the head of the Iran’s HTA Office at that time and sought feedback based on his expert opinion about questionnaires, the priority-setting tool and our process for extracting research gaps.

Results

A total of 11 HTA reports published between 2014 and 2016 by Iran’s HTA Office were selected for the study. Of these 11 reports, 5 involved technologies related to medical equipment, while 6 involved medical and surgical interventions. Assessing the outcomes of technology use in various indications and updating HTAs when new evidence arises; evaluating the viewpoints of patients, clinicians and key technology users; conducting post-marketing evaluations of technology; comparing the impact of the technology in question to other treatments for the same condition; and requesting long-term clinical and cost–effectiveness data for technologies with limited follow-up periods were identified as the main gaps by independent HTA researchers and PIs.

Conclusions

The research gaps identified from Iran’s HTAs could be utilized by research funding agencies.
Evaluation of self-sampling-based cervical cancer screening strategy using HPV Selfy CE-IVD test coupled with home-collection kit: a clinical study in Italy
Authors: Feltri Giulia , Valenti Giulio , Isidoro Erica , Kaur Jaspreett , Treleani Marianna , Bartelloni Aurora , Mauro Claudia , Spiga Federica , Ticich Giulia , Di Napoli Michela , Biagi Claudia , Pachetti Maria , Centonze Sandro , Castriciano Santina , Zanchiello Sara , Giudici Fabiola , Gerin Daniela , Zanconati Fabrizio
Published: December 2023

Background

Primary human papillomaviruses (HPV) cervical cancer screening can be strengthened by offering home-collection of biological specimen as a valuable option to increase screening coverage. As recommended by World Health Organization (WHO), screening programs should consider whether the inclusion of HPV self-sampling as a complementary option within their existing screening algorithms could address the gaps in current coverage. However, few HPV screening tests are validated for self-sampling according to international guidelines. This study aimed to test a self-sampling-based screening strategy, complementary to the main screening program based on clinician-collected cervical samples. The study took place in Trieste, Italy, and it aimed to evaluate the feasibility of self-testing at home under an opt-in system during COVID-19 pandemic in order to exploit self-sampling to reduce the screening delay generated by the lockdown.

Methods

500 women, who should have received the screening call in 2020, were asked, via phone call, to participate in the study. To whom agreed, a home-collection kit, including a vaginal dry swab for specimen collection, was sent. The recipients performed the sample self-collection and sent back the swab through traditional mail using a prepaid envelope. Once received by the hospital, the samples were analyzed with HPV Selfy (Ulisse BioMed, Italy), a CE-IVD HPV screening test specifically validated for self-collection. Results were further compared using cobas® 4800 HPV (Roche, Switzerland).

Results

80% women sent back their swab, showing one of the highest return rate obtained in comparable studies. 34 HPV-positive women were followed up and underwent the Pap test, that revealed 8 low squamous intraepithelial lesions (LSIL) cases, later triaged to colposcopy. HPV Selfy was confirmed to be an adequate test for self-sampling-based screening.

Conclusions

This study further confirmed the feasibility of self-test at home screening strategy based on self-sampling with an opt-in system as a support method to enhance cervical cancer screening coverage in Italy. Enrolled women showed a high appreciation for this approach. HPV Selfy test demonstrated to be a valuable assay for cervical cancer screening based on home self-collection.

Trial registration: ASUGI Trieste n. 16008/2018 and amendment 02-11/09/2020.
Rayleigh-Jeans prethermalization and wave condensation in a nonlinear disordered Floquet system
Authors: Haldar Prosenjit , Mu Sen , Georgeot Bertrand , Gong Jiangbin , Miniatura Christian , Lemarié Gabriel
Published: December 2023

Periodically driven quantum systems make it possible to reach stationary states with new emerging properties. However, this process is notoriously difficult in the presence of interactions because continuous energy exchanges generally boil the system to an infinite temperature featureless state. Here, we describe how to reach nontrivial states in a periodically kicked nonlinear disordered system. One ingredient is crucial: both disorder and kick strengths should be weak enough to induce sufficiently narrow and well-separated Floquet bands. In this case, inter-band heating processes are strongly suppressed and the system can reach an exponentially long-lived prethermal plateau described by the Rayleigh-Jeans distribution. Saliently, the system can even undergo a wave condensation process when its initial state has a sufficiently low total quasi-energy.
The basics of artistic car design: automotive design
Authors: Peskov Vyacheslav
Published: December 2023

The textbook examines the development and practical use of artistic construction (design) in the creation of automotive equipment. Various layout schemes of cars and buses, bodywork and cabin designs are analyzed, patterns and means of composition are described in relation to the shape of the car. The influence of the laws of aerodynamics on the shape of the car is evaluated, the issues of ergonomics of the driver's workplace are considered. The design methodology is described in detail using the example of a passenger car. Excursions into the history of famous automotive design firms in Italy, the USA and the design departments of the world's leading automakers are made. An initial course in drawing techniques is given in relation to the artistic design of a car.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For students of universities and technical schools studying in automotive fields of training and specialties in the course "Fundamentals of artistic car design". It can be useful for specialists of automotive design, maintenance and tuning enterprises.
Technology and organization of construction production
Authors: Lebedev Vladimir
Published: December 2023

The textbook outlines the basics of technology and organization of construction production. The methods of production of basic general construction and installation works on the construction of urban facilities with ensuring the requirements of labor protection and the environment are considered. The composition, content and principles of construction organization projects and work projects are highlighted. The methodology of designing technological maps, construction master plans, calendar and network schedules is described, terminology is given.
It is intended for students of secondary vocational education studying in the field of training "Construction".
Engineering Geodesy course
Authors: Budenkov Nikolay , Nehoroshkov Petr , Schekova Ol'ga
Published: December 2023

The textbook covers general information on geodesy, cartography and topography, provides the basic principles of working with geodetic instruments, provides basic methods of geodetic measurements, estimates of measurement accuracy, and provides the basic principles of engineering and geodetic works performed during surveys, design and construction of complex engineering structures. The main methods of surveys, center work and executive surveys carried out during the commissioning of facilities are described.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For students of higher educational institutions of forestry and land management, as well as for college students.
Religion and mythology of Ancient Greece
Authors: Cirkin Yuliy
Published: December 2023

The textbook reveals the mythological and religious origins of the formation of the culture and philosophy of Ancient Greece, which created a solid basis for pan-European and world culture. The manual traces the main stages and prerequisites for the development of the mythological consciousness of the inhabitants of Ancient Greece, which became the basis of religious ideas of the Hellenistic era. The author finds many interesting parallels between ancient Greek myths, Orphic cults, the teachings of the philosophers of Ancient Greece and the works of early Christian authors.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
It can be used by students studying in the specialties 03/51.01 "Cultural Studies" and 03/47/03 "Religious Studies", and will also be interesting to a wide range of readers who are passionate about ancient culture.
Psycholinguistics for speech pathologists
Authors: Ivanovskaya Ol'ga , Shulekina Yuliya
Published: December 2023

The textbook introduces students to modern scientific ideas about the relationship between language and speech, about the functions, forms and types of speech, about the psychological structure of the processes of perception and generation of oral and written speech, reveals the features of the psycholinguistic approach to the diagnosis and correction of speech disorders.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For students of higher educational institutions studying in the field of training 03/44/03 "Defectology".
Russian heraldry
Authors: Kornikov Arkadiy
Published: December 2023

The main sections of heraldry, an auxiliary historical discipline dealing with the study of coats of arms, are considered. It tells about the history of the origin and symbolism of the coats of arms of the Russian state, domestic generic and territorial coats of arms. The work reproduces a large number of images of various categories of coats of arms, there is a list of literature on this discipline.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For students studying in the field of study 46.03.01 "History", studying the discipline "Heraldry", as well as for teachers of schools, gymnasiums, lyceums and anyone interested in this area of historical knowledge.
Foreign economic activity
Authors: Karpunina Elena , Karpunin Aleksey , Gadzhiev Nazirhan , Konovalenko Sergey
Published: December 2023

The textbook contains seven chapters that reveal the theoretical, methodological, and practical aspects of the discipline "Foreign Economic Activity". Their study will allow students to gain knowledge of the theoretical foundations, forms, types of foreign economic activity, methods of customs regulation and currency control. Reveals the specifics of accounting and taxation of foreign economic activity, ensuring the foreign economic security of the state.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For cadets, students studying in higher educational institutions, including educational organizations of the Ministry of Internal Affairs of the Russian Federation, in the specialty 38.05.01 "Economic security" and the training area 38.03.01 "Economics".
Judicial economic expertise
Authors: Baturina Evgeniya
Published: December 2023

The textbook was developed on the basis of the course program "Forensic economic expertise" in accordance with the federal state educational standard of higher education (specialty) specialty 38.05.01 "Economic security".
The textbook systematizes the theoretical and legal foundations of forensic economic expertise, as well as practical aspects of conducting expert research and drawing up an expert economist's opinion; presents methods for conducting expert examinations; analyzes educational examples and non-standard situations related to the preparation of appropriate analytical tables, substantiation of conclusions on specific issues, depending on the expert tasks set.
It is intended to ensure the educational process in the discipline "Forensic economic expertise", can be used as part of the training of scientific and pedagogical personnel. The conclusions drawn and the results obtained can be used in professional activities by state and non-state judicial experts, other participants in administrative, civil, arbitration and criminal proceedings, courts and judges in court proceedings, as well as employees of specialized departments of the Ministry of Internal Affairs of the Russian Federation in the investigation of economic crimes.
Computer-oriented methods of dynamic systems
Authors: Osipenko Georgiy
Published: December 2023

The methods of studying the global properties of dynamic systems based on the construction of a symbolic image of this system are considered. A symbolic image is an oriented graph, which is an approximation to a dynamical system and is constructed by discretizing the phase space. The symbolic dynamics generated by the oriented graph reflects the dynamics of the system under study. The symbolic image is a tool of theoretical research and the basis of computer-oriented methods for the numerical study of nonlocal properties of dynamical systems.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For students of higher educational institutions studying in the field of Applied Mathematics and Computer Science. It will be useful for graduate students and researchers studying dynamical systems and their applications.
Fuel and energy complex of the Urals: Orenburg region
Authors: Aleksandrov Vadim , Solodovnikov Aleksandr
Published: December 2023

The monograph presents a regional and municipal description of the development of the oil and gas industry in the Orenburg region. A brief description of the natural conditions, the resource base of hydrocarbon raw materials is given, the stages of formation and development of the oil and gas industry in the context of the region and the largest oil and gas producing enterprises are revealed. The availability of fuel and energy resources in the Orenburg region is shown, data on production volumes at the territorial level, for the largest subsurface users and small companies, including those that have ceased their economic activities, are presented. The role of the oil and gas industry in the formation and development of the oil refining and gas chemical industry is revealed.
When working on the book, data from the Central Dispatch Department of the Fuel and Energy Complex of Russia, the Federal State Statistics Service, the Office of the Federal State Statistics Service for the Orenburg Region, departments and departments of the Government of the Orenburg Region, research and design institutes, major enterprises, literary sources, periodicals, Internet resources were used.
It is addressed to geographers, geologists, oilmen, economists, politicians, managers, specialists dealing with the problems of the development of the oil and gas industry. It will be useful for university students studying in geographical, geological, technical and economic fields of study and specialties, teachers, graduate students, high school students, lyceums, gymnasiums and anyone interested in their "small and large Homeland".
Theoretical foundations of the qualification of crimes
Authors: Gost'kova Dinara
Published: December 2023

The textbook has been prepared on the basis of the provisions of modern criminal and criminal procedure legislation, resolutions of the Plenum of the Supreme Court of the Russian Federation, materials of judicial practice and achievements of legal science. Both the theoretical foundations of criminal law qualification and problematic aspects are disclosed. The rules for the qualification of crimes are specially highlighted, as well as verification tests, answers to them, tasks with a scale of assessment according to a point-rating system.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For students and teachers of law schools and faculties, practicing lawyers, as well as all interested persons.
Features of the consideration of individual labor disputes: a comparative legal aspect
Authors: Iglin Vladimir
Published: December 2023

The monograph analyzes the legal relations between subjects of Russian and foreign labor law regarding the consideration of individual labor disputes. In addition, a comparative analysis of normative legal and law enforcement acts of various states was carried out, the criteria of which were the features of individual labor disputes in retrospect and at the present stage.
For university teachers and students, researchers, legal practitioners, as well as anyone interested in the problems of labor disputes within the framework of the theory of labor law and the practice of its application.
ESG-the concept of production accounting and sustainability management of an industrial organization
Authors: Kazakova Nataliya , Permitina Lyudmila
Published: December 2023

The monograph is devoted to the formation of the concept of production accounting based on the principles of sustainable development. The stages of formation and transformation of accounting practices of industrial organizations are considered. The ESG model of production accounting and control is described. An algorithm for assessing the sustainability of the development of an industrial organization is proposed.
For researchers, researchers, teachers, and degree seekers. It can be used in the system of additional professional education, advanced training, for self-development of managerial personnel of financial and economic services in business and government structures.
Digital citizenship
Authors: Iksanov Il'ya
Published: December 2023

The monograph examines the process of legal regulation of public relations in the field of digital citizenship, which is based on comprehensive cross-border informatization. A modern interpretation of the nature of the institution of citizenship is given. The impact of globalization is changing many traditional legal institutions. Citizenship was no exception. Understood as a stable legal connection of a person with the state, it acquires a new meaning and content in the digital environment.
It is intended for bachelors, masters of law, teachers of higher educational institutions and anyone interested in digital citizenship.
Regulatory legal acts are given as of June 3, 2023.
Ecosystems in retail or retail in ecosystems
Authors: Cheglov Aleksandr
Published: December 2023

The monograph is devoted to the topic of ecosystem formation in the consumer market. It analyzes the first results of the penetration of technology companies and banks into the consumer market, the transformation of individual retail chains and marketplaces into multidisciplinary systems. The authors prove that it is too early to talk about established ecosystems in the consumer market, rather, we observe an ecosystem approach to the development of intersectoral associations with one or another bias in the field of trade and services. The author's vision of the ecosystem as the next form of system formation in trade is proposed, a comparative analysis of the development
of the largest foreign and domestic associations in the consumer market and instruments for regulating this process is carried out.
It is intended for the scientific community and practitioners building a system business, teachers of higher educational institutions and institutions of secondary vocational education.
Technology and organization of construction of urban buildings and structures
Authors: Lebedev Vladimir
Published: December 2023

The textbook outlines the basics of technology and organization of construction production, provides general information about construction machines. The technological processes of production of basic general construction and installation works with ensuring the requirements of labor protection and the environment are considered. The composition, content and principles of designing the organization of construction and work projects are highlighted. The methodology of designing technological maps, construction master plans, calendar and network schedules is described, terminology is given.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
It is intended for students of the specialty "Urban construction and agriculture".
PCA-based Dispersed Fringe Co-phasing Method
Authors: Zhang Yongfeng , Xian Hao , Rao Changhui
Published: December 2023

Dispersed fringe sensing (DFS) is a promising co-phasing approach for a segmented telescope. We proposed a novel piston error extraction method based on principal component analysis (PCA) technology and demonstrated its performance with simulations.
Dynamic Null-Screen Test
Authors: Gonzalez-Utrera Dulce , Díaz-Uribe Rufino , Campos-García Manuel , Villalobos-Mendoza Brenda , Aguirre-Aguirre Daniel
Published: December 2023

A dynamic null-screen test consists of rotating the surface under test and designing a new null-screen for each position, this allows an evaluation of a complete freeform surface with varying concavity and convexity.
Suppressing Numerical Reflections through a New Boundary Condition
Authors: Choudhary Pratiksha , Sharma Anurag
Published: December 2023

We present a field-domain boundary condition (FDBC), which involves directly manipulating the field within the boundary layer and compare it to other boundary conditions. The advantage of the FDBC is its relative simplicity of implementation.
Complex angle isofrequency opening and reciprocity breaking in the refractive dual interface system
Authors: Shugayev Roman , Eichenfield Matt
Published: December 2023

Complex angle theory can offer new fundamental insights into refraction at the absorptive interface. In this work we propose a new method to induce isofrequency opening via addition of scattering in the dual interface system.
DFT analysis of Oxygen and Lead vacancy on the phonon mode softening and electro-optic tensor in PZT
Authors: Suraj  , Selvaraja Shankar Kumar
Published: December 2023

We present DFT simulation for effect of vacancy in PZT phonon mode softening leading to ≈90% and 99% reduction in Pockels coefficient with 50pm/V and 2pm/V peak value for Oxygen and Lead vacancy respectively.
SSIM-Edge-CNN-U2Net: Two-Stage Residual Learning to Restore Natural Scene Images Through Multimode Fiber
Authors: Yang Le , Xiang Yangyang , Yang Jiali , Li Junhui , Lan Mingying , Gao Li
Published: December 2023

Proposed SSIM-Edge-CNN-U2Net model improves loss function and adopts two-stage residual learning, achieving higher quality of restored natural scene images from speckles through multimode fiber.
Absorption Spectroscopy and Principal Component Analysis for Photopigment Assessment in Codiaeum variegatum
Authors: Naik Aditi , karnati Manikanth , Shaik Huzail , Raju Gagan , nadumane Sharmila sajankila , S Ramya , Mazumder Nirmal
Published: December 2023

The present work employs spectroscopy and machine learning based PCA to investigate fluctuations in chlorophyll concentration in Codiaeum variegatum transform from a healthy condition to a dry state, which can provide valuable insights about plant physiology.
Application of Smartphone-based imaging devices for studying biological specimen
Authors: Yashovardhan  , Hasta Shree , Raju Gagan , Managuli Vishwanath , Mazumder Nirmal
Published: December 2023

Smartphone-based imaging devices have been shown to be an alternative to the high-end microscope. The present study deals with the possible use and study of different samples including histopathological samples.
Biospeckle photography for quantitative evaluation of photodynamic therapy-mediated phthalocyanine-gold nanoconjugates
Authors: Youssef Doaa , Alexeree Shaimaa , Abdel-Harith Mohamed
Published: December 2023

This study proposes a new noncontact optical imaging technique based on biospeckle photography and multivariate analysis to estimate the cytotoxic effect of photodynamic therapy- mediated phthalocyanine-gold nanoconjugates by monitoring the physiological changes of normal tissue.
Advances in Probabilistic Constellation Shaping: From Linear Channels Towards Nonlinear Fiber Optical Channels
Authors: Cho Junho
Published: December 2023

We review recent advances in probabilistic constellation shaping that has evolved from optimization for relatively simple linear AWGN channels to optimization for complex nonlinear fiber channels, with a particular emphasis on optical fiber communication.
Strategic Patterning of ZnO via Femtosecond Laser Direct Writing for Nanophotonic and Optoelectronic Applications
Authors: Palwe Ajinkya Bharat , Jaiswal Arun , Rani Sweta , Singh Gaurav Pratap , Shukla Shobha , Saxena Sumit
Published: December 2023

ZnO nanopillar array was fabricated by femtosecond laser direct writing in ZnO quantum dots thin film. This work provides a facile method for patterning high permittivity nanostructures with tunable optical properties by varying fabrication parameters.
Enhanced quantitative birefringence imaging supported by unsupervised topological analysis of polarized light microscopy
Authors: Bouhy Julie , Roy Nicolas , Deparis Olivier
Published: December 2023

We introduce quantitative birefringence spatial measurements coupled with unsupervised topological analysis of polarization microscopy to reconstruct crystal grain axis orientations in composite uniaxial materials. Proof-of-principle demonstration is given using thin-section geological samples.
Wavelength Diversity based Low Probability to Intercept (LPI) Free-Space Optical Communications in Strong Turbulence Regime
Authors: Nafria Vijay , Djordjevic Ivan B.
Published: December 2023

In this paper we present the experimental results demonstrating improvements in BERs from wavelength diversity in the LDPC coded LPI communication over a 1.5 km long free-space optical communication in the presence of strong atmospheric turbulence.
Laser Reliability Performance of High-Speed Optical Interconnects in Hyperscale Datacenters for PAM4 applications
Authors: Lowalekar Viral , Chakravarty Abhijit
Published: December 2023

Meta is deploying high-speed transceivers in datacenters to support the increased number of products and services. This paper provides reliability comparison between different lasers used for high radix optical interconnects to support modern hyperscale datacenters.
All-silicon quantum light source by embedding an artificial atom in a nanophotonic cavity
Authors: Zhiyenbayev Yertay , Redjem Walid , Qarony Wayesh , Ivanov Vsevolod , Papapanos Christos , Liu Wei , Jhuria Kaushalya , Balushi Zakaria Al , Dhuey Scott , Schwartzberg Adam , Tan Liang Z. , Schenkel Thomas , Kanté Boubacar
Published: December 2023

We demonstrate the first all-silicon quantum light source, by embedding a single silicon-based defect within a silicon nanophotonic cavity, resulting in a 30-fold enhancement of luminescence and an 8-fold acceleration of the emission.
Athermal Silicon Photonic Wavemeter with Sub-GHz Accuracy and Wide Temperature Range
Authors: Stern Brian , Kim Kwangwoong , Gariah Harry , Bitauld David
Published: December 2023

We demonstrate an athermal silicon photonic wavemeter with high accuracy for broadband measurements over the temperature range 20-70°C. The integrated wavemeter has an average accuracy of 7.9 pm (<1 GHz) across the C-band.
Integrated Optical Phased Arrays: AR Displays, Biophotonics, 3D Printing, and Beyond
Authors: Notaros Jelena
Published: December 2023

Integrated optical-phased-array-based platforms, devices, and systems for applications in augmented-reality displays, LiDAR sensing for autonomous vehicles, optical trapping for biophotonics, 3D printing, and trapped-ion quantum engineering will be reviewed.
High-Throughput Single-Cell Sorting by Stimulated Raman Activated Cell Ejection
Authors: Zhang Jing , Lin Haonan , Xu Jiabao , Zhang Meng , Ge Xiaowe , Huang Wei E. , Cheng Ji-Xin
Published: December 2023

We report high-throughput single-cell sorting by stimulated Raman-activated cell ejection. For 1 μm polymer beads mixture, we achieved yield ~95%, purity ~98%, and throughput ~14 eps. Bacteria and live fungi were also tested.
The Manipulation of Four-Wave Mixing in a Fully Tunable MEMS Photonic Molecule
Authors: Lim Min G. , Choi Dong J. , Kim Dong U. , Park Young J. , Yu Kyoungsik , Han Sangyoon , Jeong Kwang-Yong
Published: December 2023

We demonstrated the manipulation of four-wave mixing (FWM) in a fully tunable photonic molecule implemented on low-power silicon photonic MEMS. A seeded FWM with a conversion efficiency of -56dB at 7.3dBm pump power was demonstrated.
Gated- and optical biasing for SNSPDs
Authors: Hummel Thomas , Thiele Frederik , Widhalm Alex , Höpker Jan Philipp , Protte Maximilian , Jöns Klaus D. , Chang Jin , Fognini Andreas , Steinhauer Stephan , Zwiller Val , Zrenner Artur , Bartley Tim J.
Published: December 2023

SNSPDs are usually limited to constant current bias operation due to the required room temperature auxiliary electronics. We show gated mode operation and low power biasing of SNSPDs with cryogenic integrated current sources.
Nonvolatile Opto-Mechanical Memory in a Fast Switch via Buckling-based Multi-Stability
Authors: Wen Y. Henry , Shugayev Roman , Heim David , Leenheer Andrew J. , Dong Mark , Gilbert Gerald , Eichenfield Matt , Heuck Mikkel , Englund Dirk R.
Published: December 2023

We demonstrate a near-continuously tunable non-volatile photonic memory in a MHz-rate piezo-actuated photonic cavity modulator. This functionality is achieved via buckling-based mechanical multi-stability arising from the interaction between intrinsic stresses and mechanical inhomogeneity of the actuators.
Arbitrary Waveforms from a Resonant Modulator via Coherent Pre-Compensation
Authors: Zimmermann Matthew , Wen Y. Henry , Dong Mark , Leenheer Andrew J. , Gilbert Gerald , Eichenfield Matt , Heuck Mikkel , Englund Dirk R.
Published: December 2023

We observe a highly structured complex frequency response of a piezo-actuated photonic crystal cavity due to optomechanical resonances. We demonstrate a scheme to coherently pre-compensate the drive signal to obtain high-fidelity arbitrary optical waveforms.
UV-visible dual-comb spectroscopy with robust Erbium fiber frequency combs
Authors: Chang Kristina F. , Lesko Daniel M. B. , Chang Peter , Lind Alexander J. , Tsao Eugene , Mashburn Carter , Diddams Scott A.
Published: December 2023

We present a dual-comb spectrometer in the UV-visible based on Erbium fiber frequency combs. Using this apparatus, we perform spectroscopy between 350 and 500 nm with 10 GHz resolution.
Polarization Imaging by Scanning Holography
Authors: Yoneda Naru , Saita Yusuke , Matoba Osamu , Nomura Takanori
Published: December 2023

Optical scanning holography (OSH) is one of incoherent digital holography (IDH). Although typical IDH techniques can also be applied to polarization imaging, polarization imaging through scattering media cannot be realized due to the destruction of the imaging condition. In this presentation, polarization imaging through scattering media by OSH is introduced. In addition, the recent progress of motionless OSH is also reviewed.
Large size gallium phosphide micro-transfer printing for integrated nonlinear photonics
Authors: Reis Luis , Billet Maximilien , Vandekerckhove Tom , Raineri Fabrice , Sagnes Isabelle , Pantzas Konstantinos , Beaudoin Grégoire , Roelkens Günther , Leo François , Kuyken Bart
Published: December 2023

Gallium Phosphide has unique material properties suitable for telecom and mid-infrared applications. Using micro-transfer printing, we demonstrate a low-loss Gallium Phosphide-on-insulator integrated platform with an arbitrarily large coupon area enabling the generation of on-chip supercontinuum generation.
Topological Photonic Skyrmions of Free Space-Time
Authors: Shen Yijie
Published: December 2023

We present a family of structured light beams and pulses with skyrmionic configuration, as exact solutions of Maxwell’s equations, allowing tunable textures, subwavelength super-resolution and propagation-robust topologies in space and time.
Simultaneously Sorting Overlapping Quantum States of Light
Authors: Goel Suraj , Tyler Max , Zhu Feng , Leedumrongwatthanakun Saroch , Malik Mehul , Leach Jonathan
Published: December 2023

We use a multi-plane light converter (MPLC) to sort non-orthogonal states of light encoded in dimensions ranging from d=3 to d=7 using unambiguous state discrimination. We also use this framework to accurately classify overlapping images.
High Brightness Tunable Light Source Encompassing the Wavelength Range of 200nm to 1000nm
Authors: Ye Xiaohua , Grube William , Gustafson Debbie , Zhu Huiling , Dube Megan
Published: December 2023

Tunable light source powered by LDLSTM is designed to cover spectral range from 200nm to 1000nm. Design features and key performance including in-band fluxes, FWHM bandwidths, are presented and discussed.
Dynamic 2D Array of Higher Order Bessel Beams Integrated in Time (HOBBIT)
Authors: Cramer Tyler , Holsenback Vincent , Free Justin , Miller J. Keith , Johnson Eric G.
Published: December 2023

This paper presents a scheme for the realization of a dynamic 2D array of Higher Order Bessel Beams Integrated in Time (HOBBIT). Results are presented for time varying changes in OAM and their corresponding propagation properties.
THz Induced Nonlinear Photocarrier Dynamics in Multilayer WSe2
Authors: Guay Viela , Johnson Nathan , Zhang Yue , van der Zande Arend M. , Thorp Spencer G. , Graham Matthew , Lee Yun-Shik
Published: December 2023

We demonstrate that strong THz pulses enhance nonlinear THz absorption in optically excited WSe2. The increase in THz conductivity indicates that the intense THz fields drive the photocarriers into sidebands of higher mobility.
Lighter and memory-saving diffraction calculations
Authors: Shimobaba Tomoyoshi , Tahara Tatsuki , Wang Fan , Shiomi Harutaka , Blinder David , Hara Takayuki , Nishitsuji Takashi , Shiraki Atsushi , Ito Tomoyoshi
Published: December 2023

This study proposes the use of low-quantization techniques, hexagonal sampling, and implicit convolution to enable lighter and more memory-efficient diffraction calculations. The combination of these methods reduces memory usage and speeds up diffraction calculations.
Neural nonlinearity using a surface normal photodetector for diffractive optical neural networks
Authors: Ashtiani Farshid , Idjadi Mohamad Hossein , Hu Ting-Chen , Grillanda Stefano , Neilson David , Earnshaw Mark , Cappuzzo Mark , Kopf Rose , Tate Alaric , Blanco-Redondo Andrea
Published: December 2023

We propose a neural nonlinearity using a surface-normal photodetector with a response time of 5.7 µs and an energy efficiency of < 10 nW/pixel. This device offers a significant improvement in free-space diffractive optical neural networks.
Lithography-free Integrated Photonics
Authors: Wu Tianwei , Menarini Marco , Gao Zihe , Feng Liang
Published: December 2023

We report an unprecedented lithography-free paradigm for an integrated photonic processor, which creates exceptional field programmability and functionality from a global perspective, enabling accurate multiply–accumulate operations and in-situ training of optical neural networks.
Comparison of biomaterials used in contact lenses based on water content analysis with terahertz spectroscopy
Authors: Jayasree Stephy V.K. , Fitzgerald Anthony J. , Cense Barry , Swartz Gavin , Wallace Vincent P.
Published: December 2023

Optimizing the biocompatibility and comfort of contact lenses relies heavily on selecting the appropriate biomaterials. To enhance wearing time and comfort, it is essential to evaluate the in vitro dehydration of contact lenses using innovative techniques like terahertz (THz) time-domain spectroscopy and optical coherence tomography (OCT). These advanced methods offer valuable insights into assessing the water content of contact lenses made from diverse materials.
Determination of chronic degenerative diseases by Raman spectroscopy, principal component analysis, and saliva biomarkers
Authors: Castro-Ramos J. , Chavarría-Lizárraga H.N. , Bruzual-Roa R. , Narea-Jiménez F.
Published: December 2023

We analyzed saliva samples' Raman spectra. We analyze the Raman spectra of salivary biomarkers such as albumin, alanine aminotransferase, cortisol, and melatonin. With the peaks found in the saliva spectrum, we associate them with chronic degenerative diseases.
Analysing the effects of Data Preprocessing in FTIR Images Clustering of Oral Squamous Cells Carcinoma
Authors: Peres Daniella Lúmara , Germano Gleice , Silva Daniela F. T. , Bachmann Luciano , de Matos Leandro L. , Felipe Joaquim C. , Pereira Thiago Martini , Zezell Denise Maria
Published: December 2023

This work shows the importance of data preprocessing steps before applying the k-means clustering method in hyperspectral images of oral squamous cell carcinoma samples to differentiate healthy tissue from neoplastic tissue in the samples.
Monitoring Wound Healing in Cell Culture Using a Lens-free Microscope
Authors: dos Santos Costa Camilla , de Paula D’Almeida Camila , Pratavieira Sebastião , Bagnato Vanderlei Salvador
Published: December 2023

A lens-free holographic microscope was assembled for wound-healing assay monitoring. It functions within cell incubator, providing continuous cell migration imaging, with large FOV. It holds promise for optimizing cell culture techniques in in vitro studies.
Random Number Generators Utilizing Speckle Patterns from Blood Flow in Microfluidic Device
Authors: Yoon Inkwon , Park Jinseok , Park Yeong-Seo , Park Byeong Uk , Jung Ye Bin , Han Jong Hyeok , Kim Seung Hyeon , Kim Yang Woo , Jeon Hee-Jae
Published: December 2023

We introduce a novel blood flow-inspired RNG capable of generating random numbers at a speed of 5 MHz and validate the system using the NIST (National Institute of Standards and Technology) randomness statistical test suite.
High-Quality Compressive Holographic Imaging for Fiber Bundle-Based Endoscopes
Authors: Wu Jiachen , Cao Liangcai
Published: December 2023

The combination of holography and endoscopy can expand the medical diagnosis modalities. However, the honeycomb artifact in fiber bundle image disturbs holographic reconstruction. We proposed a high-quality compressive holographic imaging method for fiber bundle-based endoscopes.
Phase Resolution Measurement in Quantitative Phase Imaging
Authors: Ibiyemi O. Joseph , Panuski Benjamin , Yu Shengtao , Kulkarni Pranav P. , Gaylord Thomas K.
Published: December 2023

Small-phase-difference mask structures are fabricated and tested to estimate the phase resolution measurable in quantitative phase imaging.
Ag-doped TiO2 Nanoparticles Generated with Femtosecond Laser Ablation for Sensing RDX and Ammonium Nitrate
Authors: Banerjee Dipanjan , Moram Sree Satya Bharathi , Soma Venugopal Rao
Published: December 2023

In this study, the femtosecond laser ablation technique was engaged to fabricate silver-doped titanium dioxide nanoparticles. Further, these NPs were employed in surface-enhanced Raman scattering-based sensing of RDX and ammonium nitrate traces.
Modified extended maximum average correlation height filter for target identification
Authors: Kumar Rahul , Nishchal Naveen K. , AlFalou Ayman
Published: December 2023

In this paper, we propose a wavelet-modified extended maximum average correlation height filter to enhance the target identification capability through enhanced correlation peak height and reduced false alarm.
Fast Demodulation of Temperature and Strain from Sparse FBG Spectra with Machine Learning
Authors: Liu Xiao , Jie Ruimin , Shi Songge , Zhu Chen , Liu Bo
Published: December 2023

We demonstrate that a coarse single-FBG spectrum contains sufficient information for simultaneous measurement of temperature and strain based on machine learning analysis, with accuracies reaching 1.14% full scale at an acquisition rate of 5 kHz.
Modulation Instability in Coherent Four-Level System in Tripod Configuration due to Intersubband Transition
Authors: Shwetanshumala S , Kumar Jyotish , Mishra Manoj
Published: December 2023

The Modulation instability (MI) of a broad optical beam in an ACQW with four subbands is investigated using a linear stability framework. Perturbation frequency regime for MI under Kerr and cubic-quintic nonlinearity is identified.
Response of an LDR to Light's Spatial Structure
Authors: Simon Niña Zambale , Simon Rhenish , Hermosa Nathaniel
Published: December 2023

An LDR's response is known to be dependent on light intensity and wavelength. In this work, we show via simulations and experiment that its behavior is also affected by the spatial structure of incoming light.
Homogenous Vortex Solutions in a Nonlinear Multicore Fiber
Authors: Khushhali Shamaem , Marini Andrea , Roy Samudra
Published: December 2023

We study homogeneous vortex solutions in nonlinear multicore fibers with six periphery cores and one central core having two opposite polarizations using discrete nonlinear Schrodinger equation and Manakov equations with and without polarization cross-coupling.
Novel optical fibers for mid-infrared single-photon sources
Authors: Jain Shruti , Jain Deepak
Published: December 2023

We investigate different glasses and fiber designs to explore the possibility of mid-infrared single photon sources. Several optimized fibers exploiting zero dispersion wavelengths to meet the phase-matching conditions have been achieved to generate single photons.
Silicon Photonics-based Geiger-operated Avalanche PD for Quantum PICs
Authors: Chapa Manuel , Krückel Clemens , Alanagh Hasan , Van Thourhout Dries , Clemmen Stéphane
Published: December 2023

We report the Geiger operation of a nanophotonic silicon APD, quantify its dark counts rate and detection probability at 300K. While characterized in free space, simulations of coupling to a nanophotonic waveguide quantify future improvements.
Dielectric Metasurface Enabled Liquid Crystal on Silicon for Broadband Phase Enhancement
Authors: Li Jiaqi , Gu Xin , Zhu Zhaoxiang , Liang Zhouxin , Wang Bo , Chen Yujie
Published: December 2023

Phase-only Liquid Crystal on Silicon (LCoS) device is essential for versatile applications ranging from microdisplays to optical communications. To overcome the limitations of the thickness of liquid crystal layer, a broadband phase enhancement LCoS device can be realized by Mie resonance with dielectric metasurface.
Mode area scaling using bend compensated ultra-low NA graded index fiber
Authors: Thekkeyil Soorej , Dhar Anirban , Jain Deepak
Published: December 2023

We demonstrate ultra-low-NA graded-index fibers for lasers. The effective areas of ~3200, ~2100, and ~1000 μm2 for the fundamental mode were achieved at 71, 43, and 31 cm bend diameters respectively with effective single-mode operation.
Extension of Generalized Wigner-Smith Operator Applications: from Linear to Nonlinear Interpolation
Authors: Hu Xingzhuo , Yang Jiali , Xiang Yangyang , Li Junhui , Luo Bin , Lan Mingying , Gao Li
Published: December 2023

Nonlinear interpolation is proposed to extend the scope of generalized Wigner-Smith operator looking for perturbation-invariant modes in multimode fiber, found those under unknown configuration from quadratic interpolation of intensity transmission matrix.
Photovoltaic Nano-Concentrator Integrated with Graphene Metamaterial for Energy Harvesting
Authors: Awad Ehab
Published: December 2023

An extended-bandwidth solar concentrator with 60nm spot-focusing is presented. It enhances the optical absorption of graphene mesh-like metamaterial for applications in photovoltaic energy harvesting. The concentrator has a compact-size, flat spectral response, and polarization-insensitive operation.
Verification of a Multiband Antenna for Monitoring Liver Coagulation Using Steady-State Optical Diffuse Reflectance
Authors: Abdel Halim Ashraf S. , Hamdy Omnia , Sree Mohamed Fathy Abo
Published: December 2023

A multilayer antenna is designed for MICS and ISM bands. The performance of the antenna was evaluated considering native and coagulated liver tissues. Tissue diffuse reflectance was measured to show the difference in biological characteristics.
In-situ Measurements of Subwavelength Optical Fields Based on Electrostatic-modulated Levitated Nano-oscillators
Authors: He Chaoxiong , He Peitong , Xu Jinsheng , Zhu Shaochong , Li Cuihong , Fu Zhenhai , Gao Xiaowen , Li Nan , Hu Huizhu
Published: December 2023

By electrostatically modulating optically-levitated nano-oscillators’ equilibrium positions, we achieve in-situ measurements of subwavelength optical fields’ intensity profiles with a spatial resolution below 5nm. This method benefits to improve super-resolving techniques in micro-nano photonics researches.