bluuebunny/crossref_metadata_2025 huggingface dataset:
A Experiência da Dupla Maternidade: Análise de Redes Sociais de Casais de Mães Influenciadoras
Authors: Aymone Betina , Sobreira Lopes Rita
Published: December 2024

A dupla maternidade diz respeito à construção de maternidades partilhadas por casais de mulheres não heterossexuais, configuração familiar que ainda enfrenta um cenário de pouca visibilidade e preconceito. Objetivou-se investigar como a experiência da dupla maternidade é abordada pelas mães nos espaços digitais. Para tal, a análise foi feita a partir de postagens de mães influenciadoras na rede social Instagram. A pesquisa envolveu 431 postagens de cinco perfis, sendo os dados coletados e analisados seguindo os critérios da Análise Temática. Foram criadas cinco categorias: preparação para gestação; gestação; parto; puerpério e primeiro ano em diante. A dupla maternidade é apresentada de maneira espontânea e, também, dentro do mesmo ambiente de amor, descobertas e desafios que por vezes marcam os relatos sobre ser mãe. Contudo, as experiências relatadas são sempre atravessadas pelas idiossincrasias de ser mãe em uma relação homossexual e, dessa forma, uma família que "escapa" ao referencial heteronormativo. Foi possível perceber o tensionamento de estereótipos ligados à parentalidade e à constituição de vínculos familiares. As narrativas virtuais possibilitam que esses relatos se disseminem e as influenciadoras assumam um papel de referência, ao mesmo tempo em que se reconhecem e encontram um espaço seguro de troca.
Mulheres Invisibilizadas: A Experiência Afetiva de Entrega de um Filho para Adoção
Authors: Santos Gisele Castanheira dos , Mansano Sonia Regina Vargas
Published: December 2024

A entrega de um filho para adoção passou a ser mediada pelo Poder Judiciário a partir da Lei 12.010 de 2009, que alterou o Estatuto da Criança e do Adolescente. O objetivo desta pesquisa foi analisar essa experiência sob a perspectiva das mulheres. Foi escolhida a metodologia qualitativa, valendo-se da história oral, com depoimentos acessados por entrevistas semiestruturadas e análise documental. Participaram da pesquisa quatro mulheres que entregaram os filhos para adoção na Vara da Infância e da Juventude em uma comarca do interior do Paraná. Os dados foram analisados a partir de três eixos: 1) a instituição maternidade; 2) os controles que marcam a experiência; e 3) os desdobramentos afetivos da invisibilidade das mulheres. Como resultado, foi possível compreender que os afetos vivenciados pelas participantes nessa experiência são múltiplos: arrependimento, sofrimento e autocensura, mas também inclinações potencializadoras como alegria, cuidado e expectativa pelo futuro reencontro com o filho. Concluiu-se que sustentar a diversidade de afetos manifestos nessa delicada experiência requer a formação de profissionais atentos e sensíveis à diversidade humana.
ANÁLISE POR GEOPROCESSAMENTO DA PRESSÃO, ESTADO E RESPOSTA POPULACIONAL: ZONA COSTEIRA REGIÃO DE BARRA DE SÃO MIGUEL, ALAGOAS, BRASIL
Authors: Pereira Raphael do Couto , Pinto Helena Marquini Zuntini , Vitorio Cleber Vinicius Akita , Almeida Josimar Ribeiro de , Ferreira Leticia Cardoso , Cunha Tatiana Santos da , Gurova Tetyana
Published: December 2024

Segundo informações do MMA - Ministério do Meio Ambiente (2005), uma grande quantidade da população vive em zonas costeiras havendo a possibilidade do aumento da concentração demográfica nessas regiões. Trata – se de uma região sensível onde a qualidade ambiental, valor paisagístico e diversidade biológica estão sujeitas a pressões urbanas e industriais podendo resultar no desequilíbrio dos habitats naturais. Este estudo apresenta o modelo PER – Pressão, Estado e Resposta, aplicado aos ativos ambientais existentes na zona costeira da Região de Barra de São Miguel (RBSM), localizado no estado de Alagoas, demonstrando a atualização, análise e identificação desses ativos ambientais e de que forma ocorre a pressão socioambiental presente na área. Para tal, buscou-se comparar dados populacionais e de infraestrutura em estudo no portal site do IBGE e MMA, evidenciando os resultados e justificativas através da ferramenta de Geoprocessamento, apontando suas modificações durante o período analisado. O referido trabalho definiu as pressões sofridas na região e apontou que o aumento contínuo da população, tal como a presença de instalações pode resultar em maiores consequências de impacto na área, uma vez que, o acesso a condições básicas de higiene e saúde é preocupante. O ambiente é relatado como área prioritária para conservação da biodiversidade e Região Nordeste da Mata Atlântica, identificando unidades de conservação com importância biológica alta.
Facing the challenges
Authors: Garlo Nina
Published: December 2024

Nina Garlo offers a guide for oral health professionals on aiding patient's mental health.
Avoiding the risk
Authors: Potts Kaelie
Published: December 2024

Kaelie Potts examines the detriments of too much screen time.
Saving voices
Authors: Kumar Mahesh
Published: December 2024

Mahesh Kumar discusses giving back the power of speech to those suffering from head and neck cancer.
The trip of a lifetime
Authors: Ellison Ross , Ellison Nadia
Published: December 2024

Dental Nursing speaks with Ross and Nadia Ellison about their bucket list trip for charity.
An Evaluation of Opportunities and Challenges of Blockchain Technology in Healthcare
Authors: Dinc Rasit , Ardic Nurittin
Published: December 2024

In a globalised world, patients may need to manage and track their health records with healthcare professionals anywhere and anytime with high data privacy and security. Blockchain technology (BcT) provides these necessities. This study aims to provide a general overview of the usability of BcT in healthcare applications. BcT has been adopted in many sectors, including healthcare. However, there is no unified record format among hospitals for tracking patients’ medical histories. In BcT, recorded data cannot be modified without affecting the chain hash code. The blockchain creates a secure and public digital ledger. BcT can also ensure accurate and timely financial transactions by automating payment processes among providers, insurers, and patients through smart contracts. In conclusion, BcT plays a key role in the healthcare sector. It enables safer, cheaper, more dependable, and more effective pharmacotherapy by providing data security, traceability, and immutability.
The Pretreatment Neutrophil-to-Lymphocyte Ratio as a Near-Term Prognostic Indicator in Patients with Locally Advanced Hepatocellular Carcinoma Treated with Hepatic Arterial Infusion Chemotherapy: A Propensity Score Matching Cohort Study
Authors: Liu Weifu , Zhang Kongzhi , Chen Shiguang , Wang Xiaolong , Yu Wenchang
Published: December 2024

Aims/Background To investigate the predictive value of the pretreatment neutrophil-to-lymphocyte ratio (NLR) for estimating the near-term efficacy of hepatic arterial infusion chemotherapy (HAIC) in patients with locally advanced hepatocellular carcinoma (HCC).

Methods In this retrospective study, data were collected from patients with locally advanced HCC treated with HAIC between January 2018 and June 2022. Patients were categorized based on their pretreatment NLRs and analyzed using propensity score matching (PSM). The primary endpoints in this study were objective response rate (ORR), progression-free survival (PFS), and safety.

Results The optimal pretreatment NLR cutoff was 2.90 using the X-tile software (version 3.6.1; Yale Corp., New Haven, CT, USA), and 104 patients were included. These patients were divided into a high-NLR subgroup (>2.9; n = 44) and a low-NLR subgroup (≤2.9; n = 60). 43 matched pairs were analyzed following PSM. PFS (6.7 months vs. 3.8 months, p = 0.007) and ORR (69.8% vs. 37.2%, p = 0.002) were significantly higher in patients with a low pretreatment NLR than in patients with a high pretreatment NLR. Both univariate and multivariate regression analyses demonstrated that a high pretreatment NLR was an independent negative prognostic factor for ORR (hazard ratio [HR], 3.464; 95% CI, 1.383–8.678; p = 0.008) and PFS (HR, 1.634; 95% CI, 1.026–2.600; p = 0.038). No significant differences in the incidence of adverse events were observed between the groups.

Conclusion Pretreatment NLR is a readily obtainable and effective biomarker for predicting the near-term efficacy of HAIC in patients with locally advanced HCC.
Analysis of the Efficacy and Safety of Benzbromarone Combined with Sodium Bicarbonate Tablets in the Treatment of Hyperuricemia
Authors: Zhu Wei-Hong , Huang Ke-Ke , Zhang Xin-Yi , Deng Bao-Zhu
Published: December 2024

Aims/Background Hyperuricemia is a metabolic disorder characterized by elevated levels of uric acid in the blood. If left untreated, hyperuricemia can progress to gout, which manifests as acute arthritic attacks, and may also lead to uric acid nephrolithiasis and other renal conditions. This widespread condition poses significant risks to human health and quality of life. This study retrospectively evaluated the effectiveness and safety of using benzbromarone in combination with sodium bicarbonate tablets for the treatment of gout associated with hyperuricemia.

Methods The study reviewed the electronic medical records (EMR) of 150 patients with gout and hyperuricemia who were admitted to our hospital between May 2018 and December 2023. These patients were divided into two groups: a control group and a research group. The control group received oral sodium bicarbonate tablets, while the research group was treated with oral benzbromarone tablets in addition to sodium bicarbonate tablets. The study compared the treatment outcomes and adverse reactions between the two groups, as well as assessed changes in blood-related indicators, the number of tophi, pain levels, and quality of life before and after treatment.

Results The research group demonstrated a higher total effective rate compared to the control group (p < 0.05). Post-treatment, the research group exhibited significantly lower levels of serum uric acid (UA), serum creatinine (Scr), and urea (p < 0.05). Additionally, this group had fewer tophi and lower visual analog scale (VAS) scores compared to the control group (p < 0.05). Quality of life scores were also significantly higher in the research group (p < 0.05). No statistically significant difference was found in the incidence of adverse drug reactions between the two groups (p > 0.05).

Conclusion The combination of benzbromarone and sodium bicarbonate tablets is highly effective in treating gout associated with hyperuricemia. This treatment not only reduces uric acid levels and the number of tophi but also enhances renal function, alleviates pain, and improves the overall quality of life for patients.
Clinical Efficacy of Ezetimibe Combined with Rosuvastatin in the Treatment of Patients with Primary Hypercholesterolemia Inadequately Controlled by Statin Therapy
Authors: Wei Zhifeng , Wang Fang , Zhang Lina , Dai Weixin
Published: December 2024

Aims/Background Primary hypercholesterolemia (PHC) is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although the fact that statins effectively lower low-density lipoprotein cholesterol (LDL-C) levels, some patients fail to achieve target LDL-C levels and continue to have a high risk of cardiovascular disease. This study aims to evaluate the clinical efficacy and safety of ezetimibe combined with rosuvastatin in patients with PHC.

Methods This study retrospectively examined 101 patients with PHC who received statins at the cardiology department of Jilin Province FAW General Hospital, between 2021 and 2024. Patients were divided into the observation (ezetimibe combined with rosuvastatin, n = 45) and control (rosuvastatin, n = 66) groups in accordance with their treatment regimens. Data were sourced from the hospital's electronic health records system, and statistical analysis was performed by using SPSS 25.0 software (IBM Corporation, Armonk, NY, USA).

Results Baseline characteristics were similar between the two groups. After 12 weeks of treatment, the reduction in LDL-C levels in the observation group (–0.373 [–0.427, –0.348]) was greater than that in the control group (–0.240 [–0.318, –0.222], p < 0.001). The percentage changes in total cholesterol (TC), triglyceride (TG), and high-density lipoprotein cholesterol (HDL-C) levels were significantly better in the observation group (TC: –0.230 [–0.302, –0.144], TG: –0.292 [–0.333, –0.237], and HDL-C: 0.081 [0.067, 0.111]) than in the control group (TC: –0.127 [–0.158, –0.119], TG: –0.082 [–0.101, –0.067], and HDL-C: 0.000 [–0.163, 0.133] with p < 0.001, p < 0.001, and p = 0.011, respectively). Regarding drug safety, the incidence of adverse events was comparable between the two groups (11.10% vs. 12.10%, p = 0.871).

Conclusion The combination of ezetimibe and rosuvastatin demonstrates superior lipid-lowering efficacy and good safety in patients with PHC inadequately controlled by statin therapy, providing an effective alternative treatment option. Further large-scale, multicenter randomized controlled trials are warranted to confirm its long-term efficacy and safety.
An international survey to explore outcome measures in chronic oedema and lymphoedema
Authors: Moffatt Christine C , Sykorova Martina , Dring Ellie , Murray Susie , Collard Ellen , Gordon Susan , Quéré Isabelle , Nørregaard Susan
Published: December 2024

There is a lack of agreement on treatment outcomes for chronic oedema and lymphoedema. The International Lymphoedema Framework (ILF) is undertaking a project to understand this. An international survey using a range of methods was developed and deployed through SurveyMonkey and social media. A total of 8014 respondents from 61 countries participated, including 48.5% professionals (medicine, 18.7%; nursing, 21%; physiotherapy, 39.6%; occupational therapy, 7.8%; other professions, 12.9%) and 51.4% patients. The maximum number of responses were received from the Netherlands (14.5%), followed by France (12.6%) and the UK (11.7%). The social media campaign reached 47 countries, with patients forming two-thirds of the respondents (67%). Professionals’ and patients’ knowledge deficits were evident, and both groups rated limb volume as the most important outcome measure; they also stated that it was the main indicator treatment efficacy. Limb volume stability was considered as the main outcome for intensive treatment and a marker of stability in long-term management. Quality of life and symptom control were also reported as important outcome measures. Based on the survey findings, the authors concluded that outcome measures are not well understood or consistently used in the treatment of chronic oedema or lymphoedema. Further, limb volume is the main outcome measure, but other measures such as quality of life and symptom control are also important.
An international study to explore the challenges faced by the medical device industry in the development of compression products and reimbursement
Authors: Moffatt Christine J , Dring Ellie , Sykorova Martina , Murray Susie , Thomas Melanie , Keast David , Collard Ellen , Karlsmark Tonny , Quéré Isabelle , Nørregaard Susan
Published: December 2024

Lack of agreement over the international classification for compression therapy contributes to confusion over what measures are required to capture patient-reported and cost-effective outcomes of compression therapy for the heterogenous patient population. The medical device industry that manufactures compression products has important insights into these iissues, which have not been previously explored. This knowledge could provide clarity for improving the development of compression products and use of outcome measures internationally, which could improve access and uptake of compression. Eight medical device companies that produce compression products and have expertise in reimbursement took part in 11 individual semi-structured interviews to explore these issues. Data were analysed using interpretative phenomenological analysis. Five superordinate categories emerged: (1) no definition–status quo, (2) an ageing population, (3) evidence-based healthcare, (4) changing international markets and (5) patients as consumers. These were underpinned by 13 themes: (1) technical versus clinical descriptions of compression, (2) generic compression, (3) knowledge deficit throughout the system, (4) lack of evidence, (5) increasing healthcare pressures, (6) increased patient complexity, (7) healthcare systems, (8) inequality in healthcare, (9) beliefs and myths about compression, (10) lack of incentive for investment, (11) reimbursement barriers, (12) burden of patient cost and (13) increased choice and direct purchase. Reliance on technical definitions of compression, rather than clinical descriptions, lead to poor uptake of compression therapy in clinical practice and barriers to reimbursement. The medical device industry adopts national strategies for obtaining reimbursement, as the requirements for each country differ substantially. A range of outcome measures are urgently required.
Key Mental Health Challenges: The Role of Health Policy After COVID-19
Authors: Paweł Juraszek , Karolina Król , Mateusz Grajek
Published: December 2024

Background; The COVID-19 pandemic profoundly impacted global mental health, revealing vulnerabilities in healthcare systems and exacerbating issues such as anxiety, depression, and PTSD. Vulnerable groups, including healthcare workers, young adults, and children, faced heightened risks due to social isolation, economic uncertainty, and disruptions to daily life. These challenges emphasized the critical need for targeted interventions and systemic improvements in mental health care.
Objective; This review aims to analyze the key mental health challenges emerging post-pandemic, evaluate the roles of government policies and community interventions, and propose evidence-based strategies for prevention and rehabilitation. Additionally, it highlights innovative solutions to address service gaps and promote resilience.
Methodology; A narrative review methodology was employed, synthesizing data from peer-reviewed journals, organizational reports (e.g., WHO, OECD, UNICEF), and national datasets from 2019–2023. Key themes—mental health challenges, government roles, prevention strategies, and innovative interventions—were explored through qualitative and quantitative analyses. Selection criteria focused on mental health conditions exacerbated by the pandemic and policy responses at local and national levels.
Conclusions; The pandemic underscored the importance of mental health as a public health priority. Effective interventions include integrating mental health into broader health policies, increasing funding, and promoting public awareness. Prevention strategies focusing on early detection, lifestyle interventions, and community support proved vital, while rehabilitation efforts such as family involvement, peer networks, and technological tools facilitated recovery. A multisectoral, evidence-based approach is essential to build resilient mental health systems capable of addressing future challenges.
Contrasting eras in integration: Venezuela’s foreign policy towards Latin America and the Caribbean under Hugo Chávez and Nicolás Maduro
Authors: Acuña Rodrigo
Published: December 2024

The year 2024 marks 25 years since ‘Chavismo’ took office in Venezuela. Commencing with Hugo Chávez in 1999, and continuing with Nicolás Maduro (2013–), the Bolivarian revolution has challenged local and foreign elites by retaking control of the country’s oil industry, rejected US hegemony, and promoted greater political and economic independence through the integration of Latin America and the Caribbean. While Chávez and Maduro’s populist rhetoric has been evident during both presidencies, both leaders have differed in the effectiveness of their speeches and media presence. Also, while Venezuela’s push for regional integration has continued in recent years despite serious setbacks to such projects as the Bolivarian Alliance for the Peoples of Our America – People’s Trade Treaty (ALBA–TCP), Petrocaribe, the Union of South American Nations (UNASUR) and the Community of Latin American and Caribbean States (CELAC), the effectiveness of Caracas’ foreign policy has diminished under Maduro due to the impact of US economic sanctions, a decline in global oil prices from 2014 onwards and changing administrations in Brasilia from the progressive presidencies of Luiz Inácio Lula da Silva and Dilma Vana Rousseff (2003–16) to the hard-right governments of Michel Temer and Jair Bolsonaro (2016–23). Analysing these developments and the rift between Caracas and Brasilia over the 2024 presidential election result in Venezuela, this article will explore some of the trajectories of Caracas’ foreign policy towards the promotion of regionalism in the Americas while seeking to contrast some of the successes and failures between the Chávez and Maduro administrations.
Scalable Incoherent Optical Tensor Core Based on Thin-film Lithium Niobate Platform
Authors: Wang Lin , Huang Xinyu , Zhang Lei , Yin Kun , Yu Hui
Published: December 2024

We introduce and fabricate a scalable incoherent optical tensor core based on the thin-film lithium niobate platform, and demonstrated image convolution tasks in such a scenario.
Extended Imaging Depth via Long-wavelength Conjugate Spectral-domain OCT
Authors: Arora Gauri , Balakrishnan Santosh , Adie Steven Graham
Published: December 2024

This article presents ultra-deep imaging in spectral domain OCT based on a combination of long-wavelength super-continuum source and conjugate configuration. Using this technique, we demonstrate deep tissue imaging up to 5.1mm optical depth in chicken breast tissue.
Long Term Reliability Methodology of Next Gen Pluggable Optical Modules for PAM4 Applications in Hyperscale Datacenters
Authors: Lowalekar Viral , Chakravarty Abhijit
Published: December 2024

Meta is deploying high-speed interconnects in datacenters due to increased bandwidth push in AI domain. This paper revolves around long-term reliability strategy developed in-house at Meta as a path to evaluate supplier performance in DC environment.
Real-time Wide-field Broadband Coherent Anti-Stokes Raman Scattering Microscopy
Authors: Ceconello Chiara , Rabolini Andrea , Vernuccio Federico , Bresci Arianna , Manetti Francesco , Sorrentino Salvatore , Ventura Marco , Vanna Renzo , Cerullo Giulio , Polli Dario
Published: December 2024

We present a novel wide-field broadband coherent anti-Stokes Raman scattering microscope, based on supercontinuum generation in a bulk crystal. It features rapid high-resolution chemical imaging over wide field of views, up to the video rate.
Plasmonic Modulators for Future High-Capacity Space Communication
Authors: Kulmer Laurenz , Horst Yannik , Blatter Tobias , Destraz Marcel , Baeuerle Benedikt , Leuthold Juerg
Published: December 2024

Over a 53km turbulent free-space optical link we have shown data transmission up to 424Gbit/s. These results were enabled by plasmonic modulators offering bandwidths above 100GHz and were extended up to 774Gbit/s in fiber experiments.
Aberration-corrected High-resolution OCT Microprobe Using Liquid-shaped Freeform Microlens
Authors: Xu Chao , Zhang Tinghua , Liu Peng , Yuan Wu
Published: December 2024

This study introduces a novel liquid shaping technique, thereby facilitating scalable fabrication of disposable high-resolution OCT microprobes. This method allows for customization of distal freeform microlenses, which effectively corrects chromatic aberration and astigmatism, ultimately enabling high-performance imaging.
Resonant non-reciprocal electro-optic frequency shifter in lithium niobate
Authors: Kim Gwan In , Workman Violet , Örsel Oğulcan E. , Yim Jieun , Kim Seho , Bahl Gaurav
Published: December 2024

We experimentally demonstrate a resonant non-reciprocal electro-optic frequency shifter in a LNOI photonic integrated circuit, reaching ~12 dB contrast for single sideband conversion in opposing directions.
Towards Free-Space Time and Frequency Transfer With Optically-Derived Millimeter Waves
Authors: Meyer Dylan , Lind Alexander , Kudelin Igor , Groman William , Sherman Jeff , Quinlan Franklyn , Diddams Scott A.
Published: December 2024

Optically derived 90 GHz carriers are generated via electro-optic frequency combs. The carrier noise characteristics are analyzed to evaluate effects of free-space transmission on stability and phase noise.
Structuring Light Pulses at the Attosecond Scale
Authors: Hernández-García Carlos
Published: December 2024

Attosecond light pulses structured in their spatial intensity, phase and polarization profiles can be designed thanks to high-order harmonic generation. We report the latest advances including generation of attosecond vortex pulses with controlled angular momenta.
A Dual-Branch Frequency Comb for Molecular Vibrational Spectroscopy
Authors: Ma Sichong , Chang Peter , Wu Tsung-Han , Xing Sida , Liu Zhimin , Leibfried Dietrich , Chou Chin-wen , Diddams Scott A.
Published: December 2024

We present a dual-branch frequency comb producing light at 1550 nm and 1920 nm for precision vibrational Raman spectroscopy of a single CaH+ molecular ion.
Optical SIMD logic gate utilizing parallelism
Authors: Mashiko Ryosuke , Naruse Makoto , Horisaki Ryoichi
Published: December 2024

We propose a novel optical SIMD logic gate termed diffraction casting (DC) by utilizing spatial parallelism of light. Numerical demonstration showcased the versatile virtue of DC including high scalability and the realization in end-to-end optical computing.
Efficient and deterministic InAs/GaAs quantum dot single-photon source emitting directly in the original telecommunications band (O-band)
Authors: Albrechtsen Marcus , Vernet Matéo , Meng Yu , Spitzer Nikolai , Mikkelsen Mikkel T. , Thomas Rodrigo A. , Wieck Andreas D. , Lodahl Peter , Ludwig Arne , Midolo Leonardo
Published: December 2024

We demonstrate efficient, pure and on-demand InAs quantum dots in GaAs membranes that emit directly in the telecom O-band (~ 1310nm) with > 1MHz count rates, compatible with existing quantum communication infrastructure.
Compressive Tomography of Unstructured High-Dimensional Photonic Entanglement
Authors: McCutcheon Will , Goel Suraj , Valencia Natalia Herrera , Mackay Euan , Leedumrongwatthanakun Saroch , Malik Mehul
Published: December 2024

Entanglement-based quantum networks require characterising resources shared between distant nodes. We distribute high-dimensional (d = 131 × 131 > 214) entangled states through multi-mode fibres, characterise them using compressive sensing (compression ratios ≤ 0.00103) and certify reconstruction fidelity (F ≥ 0.9441).
SpiralVortex Superresolution Localization With a Stable Excitation Beam
Authors: Reynolds Samantha , Fowler Patrick , Voitiv Andrew A. , Restrepo Diego , Gibson Emily A. , Gopinath Juliet T. , Siemens Mark
Published: December 2024

We propose and demonstrate SpiralVortex superresolution localization, in which fluorescence is measured while a dark spot spirals out from the center of a stationary excitation beam. The stable beam offers potential for superresolution at depth.
RF-optical signal conversion via Dual Active-Cavity modulator in a Monolithic Electronic-Photonic SOI Platform
Authors: Singh Manuj , Zhang Xinchang , Onural Deniz , Wang Ruocheng , Zhang Bohan , Al Qubaisi Kenaish , Stojanović Vladimir M. , Popović Miloš A.
Published: December 2024

We demonstrate a Dual Active-Cavity RF modulator combining T-shaped spoked junction with a novel “half-rib” waveguide in a monolithic electronic-photonic platform. We measure a sideband efficiency of -52 dB at 66 GHz RF carrier frequency.
Ultra-low power optical tweezers for indentation of tissues
Authors: Krishna Krishangi , Burrow Joshua A. , Liu Wenyu , Chaudhary Shayaan , Toussaint Kimani C.
Published: December 2024

Traditional optical tweezers rely on the use of continuous-wave laser sources with moderate to high optical powers for indenting cells which can lead to unwanted thermal effects. Here, we demonstrate that a femtosecond laser can provide optical tweezing of microparticles to indent tissues using an average power as low as 1 mW.
Post-Compression of High-Energy Laser Pulses Broadened by Folded Beam Propagation in Air
Authors: Savichev Vladimir , Tarkan Takil , Wang Yong , Furch Federico , Martinez Oscar.E , Rocca Jorge J. , Chvykov Vladimir
Published: December 2024

A proof-of-principle experiment demonstrates post-compression by a factor of ~six of 0.1 J-level Yb:YAG picosecond laser pulses spectrally broadened by free beam propagation in atmospheric air folded by flat mirrors.
Metasurfaces for Free-Space Coupling to Multicore Fibers
Authors: Oh Jaewon , Yang Jun , Marra Louis , Dorrah Ahmed H. , Palmieri Alfonso , Dainese Paulo , Capasso Federico
Published: December 2024

Metasurface-based free-space couplers between a single-mode fiber array and a multicore fiber are demonstrated. Measured insertion loss and crosstalk are as low as 1.2 dB and up to -40.1 dB across the O-band, respectively.
Lensless Multicore Fiber Endoscope with Expanded Cores for Improved Light Collection
Authors: Zolnacz Kinga , Stephan Ronja , Dremel Jakob , Hausmann Katharina , Ließmann Matthias , Steinke Michael , Czarske Juergen , Kuschmierz Robert
Published: December 2024

Multicore optical fibers are an innovative tool in lensless endoscopy. To overcome their main limitation, i.e., low light collection efficiency, thermal expansion of the cores was applied, resulting in improved image quality, contrast and signal-to-noise ratio.
Inverse Design of Silicon Nitride Wavelength-division Multiplexers and Frequency-selective Resonators
Authors: Liu Danxian , Bostan Egemen , Zeng Tianyi , Paul Aditya , Yang Kiyoul
Published: December 2024

We experimentally demonstrate inverse-designed 980/1530 nm and 1480/1530 nm wavelength-division-multiplexers on an 800 nm-thick silicon nitride platform. The devices exhibit < 3 dB insertion loss and ≈ 9 dB crosstalk. Additionally, we showcase a frequency-selective resonator architecture utilizing the inverse-designed elements.
Vision Ray Metrology for the Metrology of Optical Freeform Surfaces
Authors: Falaggis Konstantinos , Ramirez-Andrade Ana Hiza
Published: December 2024

Vision Ray Metrology is a novel technique for measuring freeform optics in transmission. This work examines converting geometric wavefronts into height measurements, emphasizing the impact of sample back surface flatness and telecentricity on accuracy.
UV-visible dual-comb spectroscopy with thin-film lithium niobate nanophotonics
Authors: Chang Kristina F. , Mashburn Carter , Wu Tsung-Han , Ledezma Luis , Sekine Ryoto , Marandi Alireza , Diddams Scott A.
Published: December 2024

A dual-comb spectrometer based on nonlinear UV-visible generation in thin film lithium niobate nanophotonics is presented. With this instrument, spectroscopy between 370 and 800 nm is performed with 100 GHz resolution.
A Compact, Easily Tunable Extreme-ultraviolet Source: High-harmonic Generation in Strongly Overdriven Regime
Authors: Major B. , Kovács K. , Svirplys E. , Anus M. , Ghafur O. , Varjú K. , Vrakking M. J. J. , Tosa V. , Schütte B.
Published: December 2024

We present a compact high-harmonic generation approach – termed as strongly overdriven regime – providing continuum radiation ranging from 18 to 140 eV albeit using long driving laser pulses, acting as a flexible and intense extreme-ultraviolet source.
SNSPD Arrays for Deep Space Optical Communication
Authors: Guardiani Antonio , Vlot Henri , Locht Lieuwe , Fakhree Amin , Caldarola Martin , Fognini Andreas
Published: December 2024

A free-space coupled 6x6 array of Superconducting Nanowire Single-Photon Detectors (SNSPDs) developed for Deep Space Optical Communication has enabled datarates of hundreds of Megabits/second for specific protocols, with a pathway for further extension.
A High-Resolution and High-Bandwidth Nano-Optomechanical MEMS Accelerometer with Ultra-Wide Optical and Temperature Ranges
Authors: Ge Chang , Dominguez Daniel , Miller Michael , Eichenfield Matt
Published: December 2024

We demonstrate a > 10 milligram, fiber-packaged, ultra-high-sensitivity nano-optomechanical MEMS accelerometer using an intrinsically differential Mach-Zehnder strain-sensing interferometer with
10μ g/Hz resolution up to 100 kHz. The differential readout is insensitive to wavelength and temperature over ~40 nm and ~30 degree ranges, respectively.
An Optically Broadband Piezo-Optomechanical Magnetometer with Wide Temperature Range: Towards Fieldable Devices
Authors: Castillo Zachary , Smith Brandon , Will-Cole Alex , Dong Mark , Bussmann Konrad , Finkel Peter , Eichenfield Matt
Published: December 2024

We demonstrate optically broadband piezo-optomechanical magnetometry, with performance comparable to state-of-the-art cavity optomechanical magnetometers. The devices are thermally insensitive and do not require laser locking, opening the door to operation outside the laboratory environment.
Design and Fabrication of a MEMS-Enabled Quantum Socket for the Control of All Photonic and Spin Degrees of Freedom of an Artificial Atom in a High-Cooperativity Diamond Microdisk
Authors: Zhai Aileen , Clark Genevieve , Dong Mark , Mack John , Wen Y. Henry , Saha Matthew , Greenspon Andrew , Palm Kevin , Dominguez Daniel , Leenheer Andrew , Gilbert Gerald , Englund Dirk , Eichenfield Matt
Published: December 2024

We design and simulate the performance of a diamond microdisk resonator hosting group-IV defects heterogeneously integrated with MEMS-enabled piezo-optomechanical Si3N4 photonics, which allows control over all degrees of freedom of the defect and emitted photons.
Avalanche-enabled optical modulation with single-photon intensities
Authors: Sychev Demid V. , Chen Peigang , Yang Morris , Fruhling Colton , Lagutchev Alexei , Kildishev Alexander V. , Boltasseva Alexandra , Shalaev Vladimir M.
Published: December 2024

We demonstrate all-optical modulation of 1550-nm wavelength beam of 10mW power controlled by a single-photon intensity signal in an avalanche photodiode.
Inverse Design of Quantum Spin Hall Effect-based Photonic Topological Insulators
Authors: Xiong Wanshu , Jiang Huaqing , Li Yumiao , Yin Kun
Published: December 2024

A generalized deep learning method is proposed for fast and accurate inverse design of photonic topological insulators (PTIs) characterized based on the Quantum Spin Hall Effect. And the topological protection performance is verified.
Normal and Anomalous Dispersion with Gain in Four Level System Coupled by Two Coherent Fields
Authors: Kumar Jyotish , Mishra Manoj , Shwetanshumala S.
Published: December 2024

The article explores the possibility of both subluminal and superluminal propagation in the same system. We find that the strength of the single coupling field and its detuning are like knobs to control propagation speed.
One-step Fabrication of Fluorescent Photonic Crystals via Two-photon Lithography
Authors: Rani Sweta , Das Rahul Kumar , Jaiswal Arun , Singh Gaurav Pratap , Sharma Akanksha , Saxena Sumit , Shukla Shobha
Published: December 2024

We report a one-step technique for fabricating fluorescent photonic crystal (FPC) via two-photon lithography. The FPCs exhibit strong, tunable photoluminescence under 405,488 and 561 nm laser excitation, which is promising for optoelectronics and sensing applications.
A Hyperbola Framework for Scalar Diffraction Theory with Applications
Authors: Thomas Joseph Ivin
Published: December 2024

A complete geometrization of the Huygens–Fresnel principle by means of a highly versatile hyperbola theorem is presented, alongside its applications. The unitary framework so developed can concurrently apprehend both optical interference and diffraction phenomena.
Influence of duration and peak power on Airy pulses supercontinuum spectra generated in a silicon-on-insulator waveguide including negative frequency Kerr effect and third-harmonic generation
Authors: Boukar S. K. , Mandeng L. M. , Heuteu C. , Tchawoua C.
Published: December 2024

Reducing the pulse duration as well as the power is beneficial for the Airy pulses supercontinuum generation in the realistic case where nonlinear absorptions, third harmonic generation, negative frequency Kerr effect are taken into account.
Analysis of Squeezed Light Generation via SFWM in a Si3N4 Microring Resonator
Authors: Rabiei Masiha , Kaatuzian Hassan , Hasani Mahmood , Shircharandabi Atena
Published: December 2024

This work investigates the generation of squeezed light states through spontaneous four-wave mixing (SFWM) using a silicon nitride (Si3N4) waveguide coupled to a microring resonator which holds promise as a source for quantum technologies.
Estimating the Absorption and Waveguiding in Porous Slabs from Multimodal Measurements
Authors: Singh Navindra , Vuong Luat T.
Published: December 2024

We present relations and demonstrate a multimodal approach for estimating the light absorbed in porous paints and thin slabs, which is significant when the single-pass absorption the porous slab is more than a few percent.
Modified Spiral-Shaped PCF based SPR Biosensor with Circular Ring
Authors: Mittal Shweta , Agarwal Akshat , Mudgal Nitesh , Choure Kamal Kishor , Saharia Ankur , Kumar Santosh , Singh Ghanshyam , Tiwari Manish
Published: December 2024

This work intended to present a spiral-shaped PCF-based SPR Biosensor with a circular ring. The Phase Matching Resonance condition is found at 820nm having a peak confinement loss of 1.002 dB/cm at analyte RI 1.40.
A Scalable and Simple Horizontal Sub-Wavelength Grating for Bio-Molecule Sensing using Fano-Resonance
Authors: Aravind Aditya , Ramesh Aditya , Kashyap Anirudh , Chandra Chandana , Sinha Rajat Kumar , Bhowmick Kaustav
Published: December 2024

The present works demonstrates a Fano resonating horizontal subwavelength grating structure in biomolecule sensing, with sensitivity ~ 40nm/RIU, FOM of ~ 12 RIU-1 and Q factor ~ 460, for refractive indices between 1.312 and 1.33.
Design and Development of Microfluidic Device for High Throughput Dynamic Spheroid Generation Using 3D Printing and Soft Lithography Technology
Authors: Salve Amol Lalchand , Banik Oindrila , Banoth Earu
Published: December 2024

Cell spheroids replicate in-vitro environments. Our AutoCAD-designed, COMSOL-simulated microfluidic device shows potential for high-throughput dynamic spheroid generation. Simulations and experiments confirm that a flow rate of ≤0.3 ml/hr achieves dynamic cell settling.
Discrimination between normal and inflammatory blood serum samples based on reflection-enhanced laser-induced fluorescence
Authors: Abdelazeem Rania M. , Abdel-Salam Zeinab , Abdel-Harith M.
Published: December 2024

Reflection-enhanced laser-induced fluorescence (RELIF) has been used to discriminate between normal and inflammatory blood serum samples. The tested samples were placed in a side-coated cuvette. The results from the well-known LIF and RELIF were compared.
1130nm InGaAs/GaAs VCSELs for 3D Sensing and Industrial Applications
Authors: Ghods Amirhossein , Behres Alexandar , Baumann Simon , Prabaswara Aditya , Johnson Klein
Published: December 2024

We report on development of 1130nm oxide VCSELs based on InGaAs/GaAs active material system and AlGaAs distributed Bragg reflectors (DBRs). To our knowledge, this is the first report on the development of multijunction VCSELs at this wavelength.
Investigating the Influence of Dielectric Barrier Discharge Plasma on the Physical Characteristics and Mechanical Properties of PVA/Aloe Vera/Chitosan Nanofibers
Authors: Nath Kaushik Kokil , Bora Lakshya Pratim , Biswas Rajib , Ahmed Gazi Ameen
Published: December 2024

The central idea is to fabricate PVA/ Aloe Vera/Chitosan nanofibers and subject them to plasma treatment to investigate alterations in their physical characteristics and physical properties. exploring its potential as wound dressing.
Plasma treated Polyvinyl Alcohol/Honey Based Film: Preparation and Characterization
Authors: Nath Kaushik Kokil , Biswas Rajib , Ahmed Gazi Ameen
Published: December 2024

The aim of this work is to fabricate PVA/Honey film and subject them to plasma treatment to investigate alterations in their physical properties. This research explores the potential of the mat as packaging film for its use in food packaging, with a focus on inhibition of bacterial growth.
Combining Single and Two -photon Polymerization: An Approach to Generate Laminated Anticounterfeiting Tags
Authors: Jaiswal Arun , Rani Sweta , Singh Gaurav Pratap , Sharma Akanksha , Singhal Aman , Saxena Sumit , Shukla Shobha
Published: December 2024

Combination of single and two-photon polymerization have been exploited to generate laminated nanopatterned tags. A micro-QR code is fabricated using two-photon lithography, and the subsequent lamination is achieved via single-photon polymerization.
Single-exposure synthetic aperture micro digital holography achieving maximum resolution
Authors: Wu Rongbi , Song Qinghe , Xia Haiting , Dang Haining , Shen Wenzhuang
Published: December 2024

By calculating the frequency shift distance induced by oblique illumination, achieving equivalence with the system's cut-off frequency allows for the maximum enhancement of resolution. Simulation results indicate that this approach is effective.
Auto-Focusing in Off-axis Digital Holography Using Gray Level Co-Occurrence Matrix
Authors: Gao Zixin , Zhang Yongan , Liu Pei , Fu Ruijin , Zhang Bing
Published: December 2024

We propose employing the gray level co-occurrence matrix (GLCM) to compute the contrast characteristics of holographic reconstructions for auto-focusing. Simulation results demonstrate that this method represents an effective approach for off-axis digital holographic auto-focusing.
Self-diffraction rings in organic materials with Gelite Bloom and Hibiscus Sabdariffa
Authors: Mejía-Vega O. A. , Chacón-Carrero M. O. , Trejo-Durán M. , Cano-Lara M. , Alvarado-Méndez E.
Published: December 2024

An experimental and numerical study of the nonlinear optical properties of hibiscus sabdariffa in gelite bloom is shown. Using the Z-scan technique and a λ = 477 nm cw variable power Ar laser, nonlinear absorption was measured, which is the main contribution to the nonlinear refractive index. Hibiscus sabdariffa presents large phase changes at low powers, which causes spatial self-phase modulation (SSPM) effects. Our experimental results show a high agreement with the numerical model of thermal lens formation used.
Highly Efficient Nano-Optical Spot Generation in a Non-Metallic Tip
Authors: Feng Weinan , Tsubokawa Makoto
Published: December 2024

A near-field sub-nanometer optical field is generated by confining a radially polarized fiber mode at a non-metallic cone shaped nanotip that is connected to the output end of a nanofiber.
Spatial Frequency Modulation Imaging for In-Line Monitoring of Laser Fabrication Processes
Authors: Scarbrough Daniel , Hunter Scott , Cottrell Seth , Squier Jeff
Published: December 2024

Spatial frequency modulation imaging (SPIFI) is demonstrated with rapid acquisition, processing, and rendering used in conjunction with a fusing laser system for modifying metallic objects or performing laser powder bed fusion.
Ultraviolet Interference Coatings for Laser Fusion Drivers
Authors: Weiss Maxwell , Lucas Samuel Castro , Davenport Aaron , Sadler Sarah , Menoni Carmen
Published: December 2024

Using a combination of HfO2, SiO2, and Al2O3 interference coatings for λ =355nm were fabricated by ion beam co-sputtering. The use of mixtures is effective for extending the UV cutoff to λ=~190 nm. The use of mixtures in the design of anti-reflective coatings improves their laser damage resistance.
3D Soft X-ray Vector Ptychography of Topological Magnetic Skyrmions
Authors: Binnie Iona , Fang Haocheng , Shearer Benjamin , Liao Chen-Ting , Cating-Subramanian Emma M. , Montoya Sergio , Fullerton Eric , Shapiro David , Miao Jianwei , Kapteyn Henry , Murnane Margaret
Published: December 2024

Soft x-ray coherent diffractive imaging is used to probe the fundamental scales of topological magnetic textures. 3D vector ptycho-tomography enables high resolution 3D static imaging of nanoscale spin textures in dipole-stabilized skyrmions.
Integrated freeform lens for Fourier transformation on SOI platform
Authors: Gao Yang , Jiao Wenting , Wang Pan , Yin Kun , Yu Hui
Published: December 2024

We experimentally demonstrated a novel on-chip integrated freeform lens for Fourier transform on a standard silicon-on-isolator (SOI) platform. The measured spatial spectrum is consistent with the numerical simulation and analysis results.
Implementation of a Fabry-Perot fiber optic interferometer to characterize flexural acoustic waves
Authors: Yareli Navarro-Martínez , Erika Hernández-Escobar , Miguel Bello-Jiménez , Rosa López-Estopier
Published: December 2024

A Fabry-Perot interferometer and its application to characterize flexural acoustic waves along an optical fiber are presented. Parameters such as acoustic wavelength, attenuation coefficient and phase velocity are given around 2-MHz acoustic frequency range.
Surface Treatment for Improved Integration of FBGs
Authors: Rovera Alberto , Aimasso Alessandro , Tancau Alexandru , Menon Devanarayanan Meena Narayana , Janner Davide
Published: December 2024

Fiber Bragg sensors (FBG) temperature sensing for harsh environments was investigated with different bondings. Plasma treatment and laser texturing were employed to improve the integration for both adhesives and brazing alloys.
Classification of Fingerprints to Study the Relationship Between Fingerprint Types and Disease Lesions Using the Mach-Zehnder Interferometer Technique - Phase I: Classification of Fingerprints
Authors: Thonglim Pachara , Usman Abdullahi , Bhatranand Apichai , Buranasiri Prathan
Published: December 2024

The investigation of fingerprints was performed using the Mach-Zehnder interferometer technique to classify fingerprint types. Fingerprint type images have been applied to predict the probability of disease in humans for the next phase.
Binary annular phase mask for extended depth of field imaging system
Authors: Reyes-Alfaro J. Manuel , Toxqui-Quitl Carina , Padilla-Vivanco Alfonso , González-Amador Enrique
Published: December 2024

A digital-optical imaging that uses a binary annular phase mask at the exit pupil to extend the depth of field is presented. The binary phase mask deliberately left the three different phase shifts, one for each wavelength of red, green and blue light, so all color channels are in focus for different axial lengths in obejct space. The optical imaging system with an extended depth of field provides a high-resolution composited image due to merging in-focus red, green and blue images.
Color-conversion Arrays with Ultra-small Pixel Sizes for Micro-LED Displays
Authors: Tsai Chih-Yuan , Chiu Hao-Sung , Wu Chen-Hsun , Kung Yu-Han , Lee Ting-Chun , Chen Shan-Yu , Yang Tzu-Yi , Lin Ching-Fuh
Published: December 2024

We address mass transfer challenges using color-conversion technology, achieving ultrahigh-density microarrays: 11548 PPI for single color, 5774 PPI for full color, 72.98% and 65.36% conversion efficiencies for green and red, respectively, at 1.4-μm pixel size.
Lensless Tip and Tilt Measurement Using Defocused Speckle Imaging
Authors: Mamaghani Sevda , Falaggis Konstantinos
Published: December 2024

This proceeding introduces a novel, cost-effective method for high-accuracy tip and tilt measurements using speckle imaging, achieving a few μrad uncertainty and sub-μrad repeatability, offering a wider angular range than traditional autocollimators.
Spectral Broadening and Pulse Shaping in the Deep Ultraviolet
Authors: Codere Julia , Pearson Brett J , Kaufman Brian , Cohen Martin G , Bain Matthew , Weinacht Thomas , Forbes Ruaridh
Published: December 2024

We demonstrate the production of shaped pulses in the deep ultraviolet using a stretched, hollow-core fiber and an acousto-optic modulator based pulse-shaper.
Transfer Efficiency in a Light-Harvesting Trimer System Using a Pair of Time-Delayed Laser Pulses
Authors: Wyke Ethan , Aiyejina Abuenameh , Andrews Roger , Greentree Andrew
Published: December 2024

We analytically derive the wavefunction for a light-harvesting trimer system excited by time-delayed laser pulses. We find suppression and enhancement of the transfer efficiency depending on the time delay between the pair of laser pulses.