bluuebunny/crossref_metadata_2025 huggingface dataset:
Reciprocity in Dynamic Employment Relationships
Authors: Fahn Matthias
Published: January 2023

This paper analyzes a dynamic relational contract for employees with reciprocal preferences. A model of a long-term employment relationship is developed that implies that generous upfront wages activate the norm of reciprocity and then are more important when an employee is close to retirement. In earlier stages, direct incentives promising a bonus in exchange for effort are more effective. Hence, direct and reciprocity-based incentives reinforce each other and should be used in combination. Moreover, a more competitive labor market may increase the utilization of reciprocity-based incentives.

This paper was accepted by Axel Ockenfels, behavioral economics and decision analysis.

Funding: This work was supported by Hardegg’sche Stiftung, the Deutsche Forschungsgemeinschaft [CRC TRR 190], and the Austrian Science Fund [Grant P 33307-G].

Supplemental Material: The online appendices are available at https://doi.org/10.1287/mnsc.2022.4657 .
From Proper Scoring Rules to Max-Min Optimal Forecast Aggregation
Authors: Neyman Eric , Roughgarden Tim
Published: January 2023

There are many ways to elicit honest probabilistic forecasts from experts. Once those forecasts are elicited, there are many ways to aggregate them into a single forecast. Should the choice of elicitation method inform the choice of aggregation method? In “From Proper Scoring Rules to Max-Min Optimal Forecast Aggregation,” Neyman and Roughgarden establish a connection between these two problems. To every elicitation method they associate the aggregation method that improves as much as possible upon the forecast of a randomly chosen expert, in the worst case. This association maps the two most widely used elicitation methods (Brier and logarithmic scoring) to the two most well-known aggregation methods (linear and logarithmic pooling). The authors show a number of interesting properties of this connection, including a natural axiomatization of aggregation methods obtained through the connection, as well as an algorithm for efficient no-regret learning of expert weights.
Supporting cultural differences
Authors: Thorpe Sarah
Published: January 2023

Working internationally really opens your eyes to embracing different cultures. Teaching in a school with over 40 nationalities allows you to take a peek into the expectations of education that other countries provide. Sarah Thorpe, an early years practitioner, discusses what needs to be considered in an international setting when welcoming families to support cultural differences.
The online master's degree in early years
Authors: Willis Richard
Published: January 2023

Professional development is ongoing, so here Professor Richard Willis looks into the options available for the level of study which is not so commonly discussed but certainly very highly regarded.
The impact on babies and their families
Authors: Johnson Louisa
Published: January 2023

In part one of a new series by Louisa Johnson she investigates the impact that the COVID-19 pandemic had on families with babies. This series of articles will discuss the qualitative data found during an investigation of parents' positive and negative experiences with having a baby during a global pandemic.

To read Louisa's introduction to her research and some of her initial prior research on pregnancy during the coronavirus pandemic please go to this month's student spotlight in the Practice Insight supplement.
Disrupting the carceral narrative of gender-based and sexual violence
Authors: Brockbank Maddie
Published: January 2023

This discussion seeks to critically explore the white, colonial narrative of gender-based and sexual violence that has justified and facilitated increased carceral power in responding to the social issue. In particular, I aim to emphasise the ways in which carcerality obscures the complex histories and dynamics of gender-based and sexual violence in order to individualise and privatise the problem. To demonstrate these dynamics, I will analyse: (1) the characterisation of perpetrators of gender-based and sexual violence as violent ‘Others’; (2) the centring of white women’s narratives in justifying increases to carceral power and implementing criminalising policies; (3) the extension of the carceral gaze through social work service provision; and (4) the fallacies of postfeminism facilitated by carceral logics. This discussion will conclude with exploring the possibilities of abolitionist social work and anti-carceral feminism in challenging the white narrative and creating space for partial histories to emerge.
Effects of Partial Coherence on Quantum-Inspired Superresolution
Authors: Liang Kevin , Wadood S. A. , Vamivakas A. N.
Published: January 2023

Quantum Fisher information calculations show that partially coherent objects may exhibit greater precision for parameter estimation. This implies an advantage in recent quantum-inspired superresolution techniques, including spatial-mode demultiplexing.
Photonic Circuit Integrated Titanium Sapphire Laser
Authors: Wang Yubo , Holguin-Lerma Jorge , Vezzoli Mattia , Guo Yu , Tang Hong X.
Published: January 2023

We demonstrate a photonic circuit integrated Ti:Sa laser with a threshold of 6.8 mW, 0.4 mW output power from 730 nm to 850 nm, and a linewidth less than 120 kHz.
Magnification of portable digital holographic camera
Authors: Pensia Lavlesh , Kumar Raj
Published: January 2023

In this paper, we investigate and report the magnification factor of the reconstructed image, in the recently reported portable digital holographic camera (DHC). It is found that the magnification factor depends on the relative distance of object plane from the aperture of the DHC.
Photothermal LiDAR for materials characterization
Authors: Samanta Bibek R. , Zilpelwar Sharvari
Published: January 2023

We demonstrate a highly sensitive range-resolved chemical identification technique using a combination of photothermal spectroscopy and FMCW LiDAR, relying on phase-sensitive detection of the sub-nanometer surface deformations caused due to photothermal absorption.
Noise-Resistant Crowd Equalisation for Optical Communication Systems Based on Machine Learning
Authors: Nurlybayeva Karina , Ron Diego Argüello , Kamalian-Kopae Morteza , Turitsyna Elena , Turitsyn Sergei
Published: January 2023

We propose a solution to noisy neural networks employed in future optical communication systems. The proposed approach includes breaking down large networks into smaller ones and forming ”crowds” using these elementary networks.
Structured Light Chirality: Past, Present, and Future
Authors: Forbes Kayn A.
Published: January 2023

In this talk I will give a survey of the past, present, and future of the rapidly emerging field of structured light chirality, ranging from the underlying general mechanisms to state-of-the-art experiments.
Nonradiating Orbital Motions
Authors: Gbur Greg , Abney Ray
Published: January 2023

Oscillations of distributions of charges that produce no radiation have been studied for over a century. We demonstrate that it is possible to produce nonradiating sources that undergo orbital motion of any radius and speed.
Vector magnetic Field Measurement using Synchronous Coherent Population Trapping
Authors: Pati Gour , Tripathi Renu , Pulido Mauricio , Suarez Mariela
Published: January 2023

We are investigating magnetic resonance signals produced by SCPT to determine the direction of magnetic field. The essence of vector magnetic field measurement lies in studying the dependence of light transmission associated with SCPT resonances by rotating the linear polarization state of the light field. We are studying this effect by doing a proof-of-principle experiment in a rubidium vapor cell and also, using a theoretical model.
Chirped Pulse Control in CARS with Applications to Remote Detection
Authors: Chathanathil Jabir , Malinovskaya Svetlana
Published: January 2023

A chirped-pulse control scheme for coherent anti-Stokes Raman spectroscopy, which is robust and selective in preparing a maximally coherent superposition of the ground electronic vibrational states, is presented with its application to remote detection.
Synthetic chiral vortices for highly-sensitive chiral discrimination
Authors: Mayer N. , Ayuso D. , Ivanov M. , Smirnova O.
Published: January 2023

We combine bicircular vortex beams, creating light that displays chirality in the dipole approximation with azimuthally varying handedness. The chiral vortex leads to a robust and highly-sensitive response in molecular enantiomers with topological properties.
Reconfigurable unitary transformations of optical beam arrays
Authors: Martinez-Becerril Aldo C. , Luo Siwei , Pagé Jordan , Liu Li , Giner Lambert , Abrahao Raphael A , Lundeen Jeff S.
Published: January 2023

Applications across photonics require transformations of optical spatial modes. We report an experimental scheme to implement arbitrary transformations on a two-beam array in a reconfigurable setup.
Multimode Squeezed States in Frequency Conversion Based Time-Frequency Networks
Authors: Folge Patrick , Santandrea Matteo , Stefszky Michael , Brecht Benjamin , Silberhorn Christine
Published: January 2023

We theoretically investigate the resource efficient implementation of linear optical quantum networks based on frequency bins, multimode squeezed states and mode-selective frequency conversion as well as their optimization.
On-Chip Poor Man’s Isolator
Authors: Cheng Haotian , Dai Zhaowei , Zhou Yishu , Ruesink Freek , Jin Naijun , Mason David , Miller Owen , Rakich Peter
Published: January 2023

Using inverse design strategies to realize a polarization splitting grating coupler with 58% efficiency, we demonstrate an integrated poor man’s isolator that exhibits 2.4 dB insertion loss and 17.7 dB of back reflection suppression.
Disorder Enhanced-Photonic Crystal Based On-Chip Spectrometer
Authors: Kumar Bhupesh , Schulz Sebastian A.
Published: January 2023

We create a compact and sensitive high-resolution spectrometer, by superimposing controlled disorder on a photonic crystal. This simultaneously creates an in-plane speckle and supresses out-of-plane scattering. We perform 3D numerical simulations to demonstrate reduced out-of-plane scattering in such disorder-enhanced photonic crystal structures compared to completely random structures
Quasi bound states in the continuum empowered intrinsically chiral emission
Authors: Zhang Xudong , Liu Yilin , Han Jiecai , Kivshar Yuri , Song Qinghai
Published: January 2023

By utilizing the physics of chiral quasi-bound states in the continuum (BICs) which breaking out-of-plane symmetry by slant meta-atoms, an ultracompact source with controllable spectrum, radiation pattern and spin angular momentum is present.
Efficient THz-bandwidth Quantum Memory in Atomic Barium
Authors: Shinbrough Kai , Hunt Benjamin D. , Park Sehyun , Oolman Kathleen , Eden J. Gary , Lorenz Virginia O.
Published: January 2023

We report record storage efficiencies in the first atomic THz-bandwidth quantum memory. Near-off-resonant orbital transitions in collisionally broadened hot atomic barium vapor allow for 83% storage efficiency, 25% total efficiency, and a time-bandwidth-product of 800.
Modelling Trapped Ion Qubits: Optical Bloch Equations of Magnetic Dipole Transitions in a Four State System
Authors: Bester Siann , Steenkamp Christine M.
Published: January 2023

An optical Bloch equation model is derived for a four state system interacting with electromagnetic radiation via magnetic dipole transitions. Applying the model to Rabi oscillation data of trapped ytterbium-171 ions contributes to experimental characterization.
Bioinspired Camera System with Amphibious and Panoramic Vision
Authors: Jang Hyuk Jae , Lee Gil Ju , Lee Mincheol , Kim Dae-Hyeong , Song Young Min
Published: January 2023

The eyes of fiddler crab inspire a novel artificial camera system, which provides amphibious and panoramic features. We integrate the flat and graded index micro-lens with comb-shaped photodiode array mounted on a three-dimensionally spherical structure.
Large Scale Site-Controlled Fabrication of Single Photon Emitters in Silicon Nitride Nanopillars
Authors: Peana Samuel , Yesilyurt Omer , Senichev Alexander , Martin Zachariah O. , Mkhitaryan Vahagn , Lagutchev Alexei S. , Boltasseva Alexandra , Shalaev Vladimir M.
Published: January 2023

A high yield (67%) method of creating single photon emitters in annealed silicon nitride on silicon oxide pillars is demonstrated. Furthermore, the SPE emitter placement precision is found to be between ±30nm- ±85nm.
Introduction to Odak: a Differentiable Toolkit for Optical Sciences, Vision Sciences and Computer Graphics
Authors: Kavaklı Koray , Akşit Kaan
Published: January 2023

This paper introduces Odak, an open-source toolkit that provides various differentiable simulation models for optical sciences, vision sciences, and computer graphics for gradient-based optimizations.
Mid Spatial Frequencies in Optical Surfaces Based on Interferometric Measurements
Authors: Szwaykowski Piotr
Published: January 2023

Modern optical polishing introduces mid-spatial frequency errors. Few standards exist to specify and measure mid-spatial frequencies. We propose Fizeau interferometry’s application characterized by power spectral density due to its flexibility and easy physical interpretation.
Measurement of the absolute radius, refractive index, and dispersion of a long cylinder
Authors: Couillard Mathieu , Bianucci Pablo
Published: January 2023

We report a method to measure the absolute radius, refractive index and dispersion of a long cylinder using only the whispering gallery modes propagating around the cross section.
Hybrid training of optical neural networks
Authors: Spall James , Guo Xianxin , Lvovsky A. I.
Published: January 2023

Optical neural networks are often trained “in-silico” on digital simulators, but physical imperfections that cannot be modelled may lead to a “reality gap” between the simulator and the physical system. In this work we present hybrid training, where the weight matrix is trained by computing neuron values optically using the actual physical network.
Bi-Photon Correlation Time Measurements with a Two-Colour Broadband SU(1,1) Interferometer
Authors: Roeder Franz , Stefszky Michael , Pollmann René , Santandrea Matteo , Quiring Victor , Ricken Raimund , Eigner Christof , Brecht Benjamin , Silberhorn Christine
Published: January 2023

We demonstrate spectral and temporal interferometry using a SU(1,1) interferometer based on ultra-broadband, non-degenerate dispersion-engineered parametric down-conversion in nonlinear waveguides. We extract the ultra-short biphoton correlation time and realise dispersion sensitive spectroscopy.
Early detection and classification of bacterial colonies using a Thin-Film-Transistor (TFT)-based image sensor and deep learning
Authors: Li Yuzhu , Liu Tairan , Koydemir Hatice Ceylan , Wang Hongda , O’Riordan Keelan , Bai Bijie , Haga Yuta , Kobashi Junji , Tanaka Hitoshi , Tamaru Takaya , Yamaguchi Kazunori , Ozcan Aydogan
Published: January 2023

We report a rapid, automated, portable and high-throughput bacterial colony detection and classification system using a thin-film-transistor array and deep learning, achieving >12 hours of time savings compared to US Environmental Protection Agency-approved culture-based methods.
Superfluorescence and Collective Purcell-Enhancement of Nitrogen Vacancy Centers in diamond membranes
Authors: Pallmann Maximilian , Köster Kerim , Heupel Julia , Popov Cyril , Hunger David
Published: January 2023

We observe cavity-enhanced ensemble fluorescence of nitrogen-vacancy centers in diamond, showing Purcell-enhancement of the Zero Phonon Line (ZPL). The emission features temporal bunching of ZPL photons, indicating collective emission that can be attributed to superfluorescence.
Towards Deep Imaging with Epi Second Harmonic Generation Holography
Authors: Murray Gabe , Field Jeff , Farah Yusef , Wang Lang , Xiu Maxine , Pinaud Olivier , Bartels Randy
Published: January 2023

We will discuss recently demonstrated Epi-SHG holography, which can detect very weak backscattered SHG signals and enables the application of recently developed techniques which utilize phase information to allow diffraction limited imaging within deep tissue.
Excitation of absorbing exceptional points in the time domain
Authors: Farhi Asaf , Mekawy Ahmed , Alù Andrea , Stone Douglas
Published: January 2023

We find that a time-domain signature of a bsorbing exceptional points is an expansion of the class of perfectly captured waveforms, improved performance for storage or transduction of energy, and conversion between waveforms within this class.
Enhanced output power-density by sidelobe suppression of phase-locked lasers
Authors: Dev Vasu , Reddy A.N.K. , Pal Vishwa
Published: January 2023

We present results on enhanced output power-density by sidelobe suppression of phase-locked lasers in various array geometries. The effect of system size, topological defects, and range of phase locking are studied.
Spectrally and spatially tunable source of correlated photons from a type-II ppKTP crystal
Authors: Omshankar  , Venkataraman Vivek , Ghosh Joyee
Published: January 2023

We demonstrate the transition of photon-pair generation from the degenerate+collinear to non-degenerate+non-collinear regime by selective tuning of pumpwavelength and crystal temperature in a 3-cm long type-II ppKTP crystal.
Fourier transform chronometry of short optical pulses
Authors: Golestani Ali , Davis Alex O. C. , Sośnicki Filip , Mikołajczyk Michał , Treps Nicolas , Karpiński Michal
Published: January 2023

We present a short optical pulse envelope measurement based on an inverted Fourier transform technique, that does not require temporally or spectrally resolved detection. We experimentally demonstrate its feasibility for classical and quantum light.
Broadband Continuum Generation in 2m long SMF28e Fiber pumped at 1064 nm, 1310 nm, and 1550 nm Wavelengths
Authors: Rehan Mohd , Chowdhury Rudranil , Varshney Shailendra K.
Published: January 2023

We experimentally demonstrate the generation of broadband continuum in 2m long SMF28e fiber while pumping with femtosecond laser at 1064 nm, 1310 nm, and 1550 nm wavelengths, which can be useful in optical coherence tomography.
Wideband Interference Management for Free Space Optical Communication Based on Photonic Signal Processing
Authors: Qi Yang , Shi Taichu , Garofolo James , Tian Gabriel , Wu Ben
Published: January 2023

We design and experimentally demonstrate a wideband interference management system for free space optical communication using photonic blind source separation and photonic signal processing to achieve real-time interference cancellation up to 3 GHz.
A single channel microfluidic device with integrated optical fibre for large volume detection and enumeration of bacterial cells
Authors: Esan Ayomikun , Van Der Heyde Trulani , McGoverin Cushla , Swift Simon , Vanholsbeeck Frédérique
Published: January 2023

We present a novel microfluidic and optical system for the rapid detection and enumeration of bacteria cells. Our system uses a single microchannel with an integrated optical fibre to achieve large volume excitation and detection of bacteria cells in low concentration suspension.
Detailed Investigation of MSM Fiber Structure for Various Sensing Applications
Authors: Dey Koustav , Dinakar D , Roy Sourabh
Published: January 2023

A detailed investigation of multi-single-multi (MSM) fiber structure for various sensing applications under varying sensing lengths of MSM has been propounded and investigated. Exceptionally high sensitivity is achieved for temperature, strain and refractive index.
Fiber Diameter Analysis in Second-harmonic Generation Images of Collagen Construct
Authors: Lin Zixi , Wilks Benjamin T. , Morgan Jeffrey , Toussaint Kimani C.
Published: January 2023

We report a fiber diameter measurement algorithm for second harmonic generation imaging of collagen-based tissue constructs based on vessel enhancement and centerline extraction.
Enhancement of Rainbow Trapping in Double Interface One Dimensional Topological Photonic Crystal
Authors: Singh Ankit , Kumar Pramod , Tiwari Akhilesh
Published: January 2023

One dimensional photonic crystal (1D PhC) hetero-structure has been proposed. Which shows topologically protected multiple resonant modes in infrared (IR) frequency range. These are responsible for rainbow trapping and depends upon the number of unit-cell of PhC2.
Studies of impact of axicon parameter on the detection of misalignment of the Perfect Vortex Beam
Authors: Gangwar Swati , Dwivedi Rajeev , Jaiswal V. K. , Mehrotra Ranjana , Saha Shibu , Sharma Parag
Published: January 2023

Recently, the perfect vortex beam (PVB) is finding more attention due to its spatial properties. In this article, we present study of the impact of axicon parameter on PVBs along with correction of misalignment.
Real-Time Tunable Titanium Oxynitride Thin Films for Applications in Broadband Photonics
Authors: Kharitonov Anton V. , Kharintsev Sergey S.
Published: January 2023

We demonstrate a new approach for in-situ and flexible customizing of the permittivity in the wide spectral range – visible and near-infrared. This allowed us to achieve, for the first time, broadband plasmonic and epsilon-near-zero resonances.
Engineering the far infrared polarization state of light via natural hyperbolic crystals
Authors: Sahoo Nihar Ranjan , Dixit Saurabh , Kumar Anshuman
Published: January 2023

We report the investigation of optical activity of natural hyperbolic material, α-MoO3, in the far-infrared spectral region. We show that one can rotate the polarization state of incident polarized light via twisting α-MoO3 flake.
Design of silicon Mach-Zehnder modulators employing deep neural networks
Authors: de Paula Rômulo , Bustamante Yesica R.R. , Sutili Tiago , Figueiredo Rafael C. , Abbade Marcelo Luis F. , Aldaya Ivan
Published: January 2023

We present an efficient optimization method for the design of silicon-on-insulator integrated Mach-Zehnder modulators based on a deep neural network that is capable of predicting the main figures of merit from the modulator design variables.
Qasi-periodic Photonic Crystal Structure for Dielectric Assisted Tamm Mode Excitation
Authors: Goyal Amit Kumar , Massoud Yehia
Published: January 2023

We demonstrate the feasibility of novel Qasi-periodic dielectric photonic crystal structure for Tamm mode excitation. This facilitates the development of reconfigurable devices to excite both bulk guided and surface Tamm modes having improved field intensities.
Simulation of a Near Infrared Perfect Absorber Based on Plasmonic Meta-gratings
Authors: Pan Jhuma , Srivastava Sachin Kumar
Published: January 2023

A perfect plasmonic meta-grating absorber in near infrared region was simulated with maximum absorbance of 99.57% and mimimum reflectance of 0 .36% a t 1795 nm. The high absorbance and lost cost fabrication makes this device a robust candidate for applications in smart windows and photodetectors.
Converting radial phase jumps to azimuthal phase jumps for fractional vortex beams
Authors: Wu Lixun , Feng Xuankai , Lin Zhongzheng , Wen Yuanhui , Chen Yujie
Published: January 2023

We propose a novel scheme by superimposing a spiral phase piecewise function on the spiral transformation to reveal the connection between the spiral fractional vortex and the conventional fractional vortex beam.
Generation of RF Radiation by Laser Pulse Trains in Air
Authors: Blair Gavin , Markov Vladimir , Sprangle Phillip
Published: January 2023

We analyze and simulate a mechanism for generating directed rf radiation when a laser pulse train forms a plasma filament in air. The frequency of the radiation is determined by the laser pulse separation.
Beam Waist and Diffraction Effect on Second Harmonic Generation
Authors: Madhu  , Dwivedi Prashant Povel
Published: January 2023

Analyzed beam waist effect on SHG behavior at phase matching when beam waist is having 50 and 100µm and also observe intensity effect when intensity is decreased by 10%. Here concept of Diffraction is used.
ENZ metamaterial for X-band in the microwave regime
Authors: Ankit  , Kishor Kamal , Sinha Ravindra Kumar
Published: January 2023

This work describes a metamaterial for the X-band of microwave regime with epsilon near zero (ENZ) characteristics. The scattering parameters and electromagnetic parameters were evaluated along with the plots of electromagnetic field distribution.
The role of femtosecond laser parameters on the fabrication of copper nanoparticles
Authors: Taher Md Abu , Rao D Narayana , Naraharisetty Sri Ram G
Published: January 2023

We report here the fabrication of cubic-shaped copper nanoparticles on copper foil by irradiating the surfaces with the wavelength of 860 nm. The laser fluence and wavelength affect copper nanoparticle shape and particle size distribution.
Superluminal Raman Lasing via Electromagnetically induced transparency
Authors: Zhou Zifan , Zhu Ruoxi , Sternfeld Yael , Scheuer Jacob , Bonacum Jason , Shahriar Selim M.
Published: January 2023

We realized superluminal Raman lasing via electromagnetically induced transparency. Compared to a conventional Raman laser with similar operating parameters, the spectral sensitivity of this approach is demonstrated to be enhanced by a factor of ~15.4.
Interaction Dynamics of Accessible Solitons in Highly Nonlocal Cubic-Quintic Nonlinear Media
Authors: Jana S. , Sharma M. , Singh B. , Kajala S. K. , Mishra M.
Published: January 2023

We present the generation and interaction dynamics of multiple accessible solitons in highly nonlocal cubic-quintic nonlinear media. Even numbers of solitons show periodic collisions. Initial separation and quintic nonlinearity marginally affect the collision dynamics.
Nanodiamonds Encapsulated In Silicon Nitride For Scalable Single Photon Sources
Authors: Smith Joe A. , Balram Krishna C. , Clear Chloe , Jiang Pisu , Kline Cecile A.S. , Komrakova Sophia , McCutcheon Dara P.S. , Monroy-Ruz Jorge , Rarity John G.
Published: January 2023

Silicon nitride is an established platform for integrated photonics. Combining NV centres in nanodiamond, we indicate its capacity for producing indistinguishable photons from highly dephased emitters and develop rapid characterisation techniques for the resulting technology.
Metallic Nano-Rings for Broadband Extraction of Quantum Light
Authors: Haws Cori , Perez Edgar , Davanco Marcelo , Song Jin Dong , Srinivasan Kartik , Sapienza Luca
Published: January 2023

We show that metallic nano-rings, deposited on the surface of a chip, centered around single InAs/GaAs quantum dots, allow increasing the single-photon flux, reaching 7M photons/s, in a device comprising a ring and gold back-reflector.
Quantum statistics of heterodyne detection of squeezed light
Authors: Morales Bultron Luis F. , Vyas Reeta , Singh Surendra
Published: January 2023

Quantum statistics of heterodyne detection of squeezed light from a degenerate parametric oscillator are discussed for arbitrary field strengths and frequencies of the local oscillator.
PT-symmetric triple waveguide directional coupler with variable coupling coefficients
Authors: Chaudhary Priyanka , Mishra Akhilesh Kumar
Published: January 2023

We numerically investigate switching characteristics in a PT-symmetric system consisting of three waveguides with variable coupling coefficients in nonlinear regime. The study is performed for different combinations of linear and nonlinear waveguides.
Stimulated Brillouin Scattering based Null compensation in a Phase Modulated Link
Authors: Jha Mukund , Parihar Reena , Dhawan Rajveer , Choudhary Amol
Published: January 2023

We propose a method for compensating the transmission nulls in a phase-modulated microwave photonic link demodulated with a Mach Zehnder interferometer. Brillouin-enabled null compensation up to 16dB and frequency tunability up to 23GHz is achieved.
Generalized Malus’ Law and Spatial Coherence Changes by Linear, Azimuthal and Radial Polarizers
Authors: Xu Jia , Gbur Greg , Visser Taco D.
Published: January 2023

We study the transmission of partially polarized, partially coherent beams through linear, azimuthal and radial polarizers. A generalization of Malus’ law is derived, as are formulas for the transformation of spatial coherence properties.
Machine learning aided classification and grading of biopsy sample using discrete wavelet transform and gray level co-occurrence matrix
Authors: Sindhoora K M , Spandana K U , Raghavendra U , Rai Sharada , Mahato K K , Mazumder Nirmal
Published: January 2023

Machine learning based classification and grading of the pathological specimen plays an important role in the biomedical field. In the current study, we discuss the importance of feature extraction for machine learning.
Investigation of the effect of gamma irradiation on the morphological structures of starch using advanced microscopic techniques
Authors: Govindaraju Indira , Muraleedharan Malavika , Maidin Sana , Chakraborty Ishita , Zhuo Guan-Yu , Mahato Krishna Kishore , Mazumder Nirmal
Published: January 2023

Rice starch was extracted from different rice varieties grown in Tamilnadu, India. Extracted starches were subjected to gamma irradiation with the dosage of 10 and 20kGy. Microscopic examination was carried out for the morphological characterization of native and gamma irradiated starch granules.
Microscopic and Thermal Characterization of Starch-Silicon Dioxide Elastomers
Authors: N Pooja , Banik Soumyabrata , Chakraborty Ishita , Mal Sib Sankar , Mahato K. K. , Srisungsitthisunti Pornsak , Mazumder Nirmal
Published: January 2023

Elastomers were synthesized from potato starch with silicon dioxide as a reinforcement filler. The films were further subjected to microscopic and thermal characterization.
Development of SOI sensor using simulations based on the effective index method
Authors: Moras André L. , Silva Artur A. , Saraiva Nathan Gonzaga , Pires Marcus V. A. , Souza Mario C. M. M. , Barea Luis A. M. , Frateschi Newton C.
Published: January 2023

We propose a robust and simple simulation methodology based on the effective index method to estimate the RI sensitivity of a self-referenced PM sensor. Comparison between simulated and experimental results shows accordance higher than 91%.
Scrutinizing Micro-Macro and Macro-Macro Entanglement with NOON Initial State
Authors: Najmadi Parvaneh , Bohloul Mohammad
Published: January 2023

In this article, we produce micro-macro and macro-macro states with the NOON initial state; finally, we scrutinize the effective squeezing parameter, mean photon numbers, number of input photons and number of macroscopic modes on concurrence.
Continuously Wavelength-Tunable Coherent EUV and Soft X-ray Light for Dynamic Magnetic Imaging and Metrology
Authors: Popmintchev Dimitar , Carpeggiani Paolo , Shumakova Valentina , Imani Aref , Wang Siyang , Yan Jieyu , Brunner Will , Kaksis Edgar , Flöry Tobias , Pugžlys Audrius , Baltuška Andrius , Popmintchev Tenio
Published: January 2023

We demonstrate bright, narrow-bandwidth, high order harmonics driven by VIS lasers, continuously tunable towards higher and lower EUV – X-ray photon energies, ideal for resonant, ultrafast, coherent diffractive imaging at the absorption edges of ferromagnets.
Signal to Noise Ratio Analysis of a Chirped Pulsed Four-Wave Mixing by the Dispersive Fourier Transform Method
Authors: Guilberteau Theo , Fourcade-Dutin Coralie , Fauquet Frédéric , Mounaix Patrick , Bigourd Damien
Published: January 2023

Four wave mixing is investigated when chirped pump and signal pulses are injected in a photonic crystal fiber. The shot-to-shot stability of the amplified coherent signal was measured by using the dispersive Fourier transform method.
Raman soliton generation in germanosilicate fibers pumped at 1.9 µm
Authors: Salalykin Stanislav , Batov Daniil , Voropaev Vasilii , Tarabrin Mikhail , Likhachev Mikhail , Mashinsky Valery , Lazarev Vladimir
Published: January 2023

We demonstrate the features of the generation of Raman solitons in germanosilicate fibers in the wavelength range up to 2.5 µm pumped by ultrashort pulses at a wavelength of 1.9 µm.
Parallel interferometric near-infrared spectroscopy (πNIRS) monitors the blood flow and absorption of the human brain in vivo
Authors: Borycki Dawid , Samaei Saeed , Nowacka Klaudia
Published: January 2023

We developed and applied parallel interferometric near-infrared spectroscopy (NIRS) for rapid cerebral blood flow and absorption monitoring. By operating ~100-500x faster than competing optical techniques, we can monitor prefrontal cortex activation in humans in vivo.
High luminance white light laser source with laser sintered Phosphor in Glass composite
Authors: Ali Javed , Jiang Bitian , Madsen Christi
Published: January 2023

High luminance white light source capable of producing 363 lumens using surface PiG fabricated from YAG:Ce and borosilicate glass powder is demonstrated. Surface type PiG is fabricated using pulsed CO2 laser sintering process.
Knowledge Distillation for learning nonlinear pulse propagation
Authors: Gautam Naveenta , Kaushik Vinay , Choudhary Amol , Lall Brejesh
Published: January 2023

This paper utilises knowledge distillation to compress a convolutional neural network trained to learn the nonlinear Schrodinger equation. The teacher-taught student network has improved generalisation, quicker convergence, and fewer trainable parameters. The proposed network is 91.2% compressed with a mean square error comparable to the teacher.
Towards Multi-Guide-Star Assisted Imaging Through Flexible Multimode Fibres
Authors: Kilpatrick Robert J. , Li Shuhui , Phillips David B.
Published: January 2023

Multimode optical fibres (MMFs) represent promising candidates for deep tissue micro-endoscopes. Here we present new approaches to overcome the time-dependent spatial scrambling of optical signals transmitted through flexible MMFs.
Detection of COVID-19 DNA using Förster Resonance Energy Transfer between upconversion and gold nanoparticles
Authors: Esmaeili Shahriar , Rajil Navid , Hemmer Philip , Brick Robert , Neuman Benjamin , Hazrathosseini Ayla , Hu Qiang , Wu Hung-Jen , Scully Marlan
Published: January 2023

FRET is ascribed to the spectral overlapping of upconversion luminescence and the absorption of AuNPs. This experiment enables early-stage coronavirus detection. The results show a sensitivity of 100 fM for the detection of COVID-19 DNA.
Observation of mechanical bound states in the continuum in an optomechanical microresonator
Authors: Yu Yue , Xi Xiang , Sun Xiankai
Published: January 2023

We experimentally realized mechanical bound states in the continuum in an individual optomechanical microresonator, which provides a new strategy of phonon trapping in micromechanical structures with dissipation channels.
Machine learning approach to study the effect of oxidation in edible almond oils using combined spectroscopy and principal component analysis
Authors: Raju Gagan , Banik Soumyabrata , Melanthota Sindhoora Kaniyala , Baycerova Yana , Kistenev Yury , Mazumder Nirmal
Published: January 2023

Oxidative deterioration of edible oils makes it unfit for consumption and poses several serious health hazards on mankind. Present study employs PCA based machine learning along with spectroscopy to investigate the effect of oxidation on edible oils.
Next generation transferable surface plasmon polariton laser
Authors: Cheung Wing-Sing , Huang I-Tsung , Wu Zong-Yu , Hsu Hsu-Cheng , Chou Yu-Hsun
Published: January 2023

In this study, we designed a substrate-free surface plasmon polariton laser composed of ZnO nanowire and aluminum. As a result, we successfully transfer device to another substrate and produced the laser.
Low Cost YAG:Nd+++ Pulsed Laser Based on a Simmer Current Electronic Scheme and its Energetic/Temporary Features in Passive Q-switch and Free generation Regime
Authors: Ormachea O. , Balderrama Y. , Tordoya R. , Lizarazu N. , Mendieta B.
Published: January 2023

We report the result of energetic/temporary features of a low-cost YAG:Nd+++ pulsed laser equipment based on a simmer current ionization circuit, applied to a Xe flash lamp for active media excitation.
Structural and Textural Defects of Nanophotonic Lithium Niobate Optical Waveguide
Authors: Azzahrani Ahmad S. , Kadhim Ahmed C. , Fakhri Makram A. , Salim Evan T. , Alsultany Forat H.
Published: January 2023

In this article, structural and textural defects of LiNbO
3
waveguide are investigated using SEM imaging technology. The outcomes show that maximum power transfer can be maintained with a crack-free edges of the optical waveguide.
Timing Jitter Remover for Optical Non-Gaussian State Preparation
Authors: Sonoyama Tatsuki , Takahashi Kazuma , Takasu Sachiko , Hattori Kaori , Fukuda Daiji , Asavanant Warit , Takase Kan , Fukui Kosuke , Yoshikawa Jun-ichi , Endo Mamoru , Furusawa Akira
Published: January 2023

In this work, we remove the timing jitter of the photon-number-resolving detector which limited non-Gaussian state preparation using a continuous-wave light source, and generate a Schrödinger cat state with Wigner negativity.
Optical Quantum Computation without Optical Switch
Authors: Asavanant Warit , Fukui Kosuke , Sakaguchi Atsushi , Kawasaki Akito , Ide Ryuhoh , Takase Kan , Endo Mamoru , Furusawa Akira
Published: January 2023

We present an architecture of optical quantum computation that does not require optical switches. Our method utilizes quantum teleportation with multimode entanglement making it a scalable architecture that is compatible with the time-domain technology.
Optimization of Adiabatic Frequency Conversion in an All-Pass Resonator
Authors: Cortes-Herrera Luis , He Xiaotong , Cardenas Jaime , Agrawal Govind P.
Published: January 2023

We analyze theoretically the energy efficiency of adiabatic frequency conversion (AFC). We determine analytically the AFC efficiency’s upper limit and optimal input pulse shape. We examine the efficiency’s dependence on the process’s timescales.
Laser Detection of Formaldehyde and Ethane in Human Breath as Potential Disease Biomarkers
Authors: Winkowski Mateusz , Stacewicz Tadeusz
Published: January 2023

Trace gases in human breath (biomarkers) may be related to certain diseases. Paper describes detecting two of them (formaldehyde and ethane) using infrared laser spectroscopy. Provided results enable directing of the sensor for clinical trials.
Compressive Non-line-of-sight Imaging using a Convolutional Neural Network
Authors: Zhu Shenyu , Sua Yong Meng , Bu Ting , Huang Yu-Ping
Published: January 2023

We demonstrate compressive non-line-of-sight imaging with downsampling ratio of 6.25% by using a convolutional neural network (CNN). Photon arrival-time histogram with 10 picosecond resolution enables high-quality image reconstruction with CNN trained purely by using simulated dataset.
Wall strain and temperature measurement inside Supersonic Ejector using FBG sensors
Authors: Hegde Gautam , Srisha Rao M V , Hegde Gopalkrishna , Asokan S
Published: January 2023

In this work, we have demonstrated the use of Fiber Bragg Grating (FBG) sensors for simultaneous measurement of the wall strain and temperature induced by complex gasdynamic interactions inside a supersonic ejector test facility.
Effect of Noises on Dynamics of Vertical-Cavity Surface-Emitting Lasers Subject to Polarized Optical Injection
Authors: Lin Hong
Published: January 2023

Numerical study shows that phase fluctuation in the injected beam can promote polarization switching and enhance period-one dynamics in a vertical-cavity surface-emitting laser. The noise from spontaneous emission in the laser is studied as well.
Multi-target Detection with an Optical Filter-less Photonic FMCW Radar
Authors: Dhawan Rajveer , Moyal Kartik , Choudhary Amol
Published: January 2023

We demonstrate multi-target detection based on optical filter-less photonic-dechirping of a frequency-modulated continuous-wave RADAR through a dual-drive Mach-Zehnder modulator-based receiver for four targets at distances from 150cm to 205cm and a range resolution of <15cm.
Characterizing the Coherent Nature of Self-Written Waveguides
Authors: Cassidy Derek , Sheridan John
Published: January 2023

We photosensitize polymer material with a photosensitive dye. A laser beam is exposed onto the photopolymer which induces a photochemical reaction. Self-written waveguides are produced within the photopolymer material and their coherent characterization is investigated.
Dual-modal light-field micro-endoscopy
Authors: Zhou You , Xiong Bo , Song Weizhi , Cao Xun
Published: January 2023

We propose a dual-modal light-field micro-endoscopy using the single-mode fiber bundle in this work, obtaining the single-shot 3D endoscopic imaging in both the bright-field and fluorescence modes.
Invariant-guided filtering in depth from focus
Authors: Luo Tianqi , Deng Xiaojuan , Qiu Jun
Published: January 2023

The focus measure operators can not accurately measure the degree of focus for each pixel. It needs to mine some other priors to improve the accuracy of depth estimation from focal stack. In this paper, the geometric and physical information of the scene are combined to define the invariant to guide the depth optimization.
Advantage of Femtosecond Optical Tweezers
Authors: Singh Ajitesh , Kumar Deepak , Singh Krishna Kant , Goswami Debabrata
Published: January 2023

To highlight the advantage of femtosecond optical tweezers over conventional tweezers, we trapped 1µm diameter polystyrene beads suspended in water using a Ti:Sapphire laser.
Investigation of surface lattice resonance enhancement on SHG in plasmonic metasurfaces
Authors: Beer Sebastian , Gour Jeetendra , Alberucci Alessandro , David Christin , Zeitner Uwe , Nolte Stefan
Published: January 2023

The role played by surface lattice resonances (SLRs) in modulating the Second-Harmonic Generation (SHG) is addressed by measuring the nonlinear response of plas-monic metasurfaces for several lattice parameters.
Anisotropic Exciton-Polaritons in an Open Cavity Structure
Authors: Chakrabarty Devarshi , Dhara Avijit , Ghosh Kritika , Pattanayak Aswini Kumar , Chaudhuri Ayan Roy , Dhara Sajal
Published: January 2023

Linearly polarized excitons in anisotropic semiconductors like ReS2 pose intriguing possibilities in photonics and condensed matter physics. Here, we stack multilayer ReS2 on a dielectric mirror, creating anisotropic exciton-polaritons which show tunable light-matter coupling.
Highly curved W-shape and J-shape photonic hook
Authors: Yu Lingya , Wang Zengbo , Xu Lizhou , Yue Liyang , Yan Bing , Wu Baidong , Chen Yiduo
Published: January 2023

We show for the first time that highly curved photonic hooks can be generated by light interaction with partially metal-coated microfluidic channels, including both W-shape and J-shape hooks with bending angles exceeding 80-degree.
Alignment Simplified Free Space Optical Communication for Radio Spectrum Coexistence
Authors: Shi Taichu , Qi Yang , Garofolo James , Wu Ben
Published: January 2023

We proposed and demonstrated an alignment simplified FSO system that enable the coexistence of radio spectrum. The FSO channel functions as a reference to cancel the interference without pre-known motion pattern of mobile receiver.
PQ:PMMA Holographic Optical Communication System for Free Space Wavelength Division Multiplexing and Demultiplexing at 1550 nm
Authors: Hamidfar Tabassom , Gamboa Julian , Shen Xi , Vonchx Joseph , Bonacum Jason , Shahriar Selim M.
Published: January 2023

We report on the successful demonstration of PQ:PMMA transmission holograms with six channels for wavelength division multiplexing around 1550 nm with 2 nm channel spacings in a free-space optical communication system.
Accessible Full-flow Electronic Photonic Packaging at the AIM Photonics TAP facility
Authors: Striemer Christopher , Pennington Graham , Patel Jill , McGarvey Peter , McDonough Colin , Bergman Barton , Teng Annette , Miller Thomas , Harame David , Howard Tyler , Brown Thomas
Published: January 2023

The AIM Photonics TAP facility is a 300mm wafer compatible packaging fab available to public and private organizations for prototype development. This paper provides an overview of current packaging and metrology capabilities.
Metasurfaces for object plane all optical image processing
Authors: Priscilla Niken , Wesemann Lukas , Lee Wendy S.L. , Davis Timothy J. , Roberts Ann
Published: January 2023

We demonstrate metasurfaces constructed of subwavelength periodic arrays of metal particles that possess asymmetric optical transfer function with a relatively high numerical aperture (~0.3) enabling phase imaging of diverse transparent objects.
Integrated bright broadband PDC source for quantum metrology
Authors: Pollmann René , Roeder Franz , Quiring Victor , Ricken Raimund , Eigner Christof , Brecht Benjamin , Silberhorn Christine
Published: January 2023

We demonstrate a broadband quantum light source employing non-degenerate type II parametric down conversion in a 40 mm long periodically poled LiNbO3 waveguide, pumped with a narrowband CW laser. Therefore maximising time frequency entanglement while maintaining high brightness.
Artificial Immune System Model for the Inverse Design of 2-D Photonic Crystal
Authors: Silveira Gilliard Nardel Malheiros
Published: January 2023

An Artificial Immune System is proposed to solve inverse design problems of integrated photonics. To validate it, the photonic bandgap (PBG) of 2-D photonic crystals of silicon nitride and air are evaluated, reaching large PBGs.
Deep Learning Optimization for Lens-Free Holographic Imaging and SARS-CoV-2 Biosensing
Authors: Sreevatsan Shriniketh , Potter Colin J. , McLeod Euan
Published: January 2023

Rapid biosensing assays to detect SARS-CoV-2 are critical in mitigating the impact of the pandemic. Here, we use a lens-free holographic microscope coupled with deep learning in a rapid and sensitive assay to detect SARS-CoV-2.
Polarizability and Stark Shift in Ultra-intense Lasers
Authors: Jones Evan , Andreula Zachery , Walker Barry
Published: January 2023

We present the polarization and Stark shift of atomic bound states from beryllium to uranium in ultrastrong fields up to 1022 W/cm2. The impact on tunneling ionization rates in relativistically strong fields is presented.
Effect of film quality on Surface Plasmon Polaritons at a Lanthanum Nickelate and Barium Titanate interface
Authors: Breedlove Shayla , Ruzycki Nancy , Yoon Yong-Kyu , Zmuda Henry
Published: January 2023

Results of 2D FDTD simulation on the Lanthanum Nickelate (LNO) and Barium Titanate (BTO) interface support surface plasmon polaritons (SPPs) at telecommunication wavelengths. The importance of smooth sol gel thin films is presented.
Intra-board Free-space Optical Interconnects for Data Centers
Authors: Pamidighantam Venkata Ramana , Yeluripati Rohin Kumar
Published: January 2023

We present chip-to-chip, free-space optical interconnect as solderable SMD component, “LightKonnect™”, for co-packaged optics. LightKonnect communicates between processors over free space avoiding expensive alignment. Free space communication between processors enables compact low power data centers.
Fabrication-tolerant MZI-based broadband couplers with arbitrary splitting ratios
Authors: Papadovasilakis Marios , Chandran Sujith , Gebregiorgis Yonas , Taha Ayat M. , Bian Yusheng , Rakowski Michal , Krishnamurthy Subramanian , Augur Rod , Aboketaf Abdelsalam , Viegas Jaime
Published: January 2023

We experimentally demonstrate fabrication-tolerant, arbitrary power splitters based on a Mach-Zehnder Interferometer (MZI). The devices exhibit maximum splitting ratio deviation of 1.2%, and maximum insertion loss of only 0.36 dB across the O-band.
Tunable all-optical time-to-frequency mapping based on XPM using parabolic pump pulses
Authors: Driouche Youcef , Hamdi Rachid , Benkelfat Badr-Eddine , Graini Leila , Halassi Abderezzaq
Published: January 2023

Time-to-frequency mapping is induced on an arbitrary optical pulse by XPM using a parabolic pump pulse. The new derived condition of the peak pump pulse allows the conversion of the input pulses having different durations.