bluuebunny/crossref_metadata_2025 huggingface dataset:
Deconstructing operations to improve recording of surgical training experience for the new curriculum
Authors: Scroggie DL , Dewi F , Pathak S , Blencowe NS , Hollowood A , Strong S , Smith A , Jah A , Van Laarhoven S
Published: September 2022

Surgical training in the UK has become outcomes-based with the implementation of the new curriculum. Performance is evaluated against the standard expected of a new consultant. Accurate recording of operative experience and performance is necessary to demonstrate achievement of this standard. The current eLogbook system for recording surgical experience is a significant improvement over paper-based records but may misrepresent actual experience because operations are considered as a whole; involvement in steps within many operations cannot be recorded.

We describe how surgical training logbooks, such as eLogbook, can be improved by using an existing typology to deconstruct operations into steps, using a worked example. Trainees will gain the ability to record their experience of operations and simulations in considerably more detail. It will be particularly useful in recording complex operations, which trainees are not expected to complete in their entirety. Less experienced trainees will benefit from being able to record their involvement in more basic parts of operations. We also propose integrating a component-based training discussion in the surgical team brief and debrief to complement the deconstructed logbook by promoting a training culture. The suggested approach may reduce misrepresentation of experience, encourage proactive planning of training opportunities and reduce the impact of crises such as the COVID-19 pandemic on surgical training.
Project SAS@BAUS: guidance on working towards the CESR
Authors: Chippagiri A , Raheem R , Shekar V , Shrotri N
Published: September 2022

What challenges are faced by applicants pursuing the CESR?
Medical knowledge of medieval physician on the cause of plague during 1347/8-1351: traditional understandings to poison theory
Authors: LEE Sang Dong
Published: September 2022

This article sets its investigative goal on determining the medical knowledge of medieval physicians from 1347-8 to 1351 concerning the causes of plague. As the plague killed a third of Europe’s population, the contemporary witness at the time perceived God as the sender of this plague to punish the human society. However, physicians separated the religious and cultural explanation for the cause of this plague and instead seek the answer to this question elsewhere. Developing on traditional medical knowledges, physicians classified the possible range of the plague’s causes into two areas: universal cause and individual/particular causes. In addition, they also sought to explain the causes by employing the traditional miasma-humoral theory. Unlike the previous ones, however, the plague during 1347-8 to 1351 killed the patients indiscriminately and also incredibly viciously. This phenomenon could not be explained by merely using the traditional medical knowledge and this idiosyncrasy led the physicians employ the poison theory to explain the causes of plague more pragmatically.
High-throughput ultrafast laser micromachining with multiple parallel spots
Authors: Bruening Stephan , Du Keming , Gillner Arnold
Published: September 2022

The parallel use of a large number of ultrashort pulsed laser beams with individual power modulation creates a completely new digital controllable tool in surface processing. High performance ultrashort pulsed lasers allow the material independent processing in nanometer accuracy, even for large components.
Photoacoustic Approach Using a Broadband Laser Source for Sensing Carbon Monoxide and Carbon Dioxide
Authors: K Saran Kumar , Y Ester Blesso Vidhya , Selvaraj Ramya , S Satyanarayanan , Vasa Nilesh J
Published: September 2022

Supercontinuum laser-based broadband photoacoustic technique is de-mostrated for sensing CO, CO2 and H2O around 2µm. The detection limit of 6 ppm, 736 ppm and 20 ppb respectively, is attained with SNR of 3 dB.
Compact fiber optic ultrasound transducer with integrated ultrasound emission and detection
Authors: Yang Liuyang , Chen Geng , Xu Dongchen , Wang Anqi , Dai Chenhao , Sun Qizhen
Published: September 2022

A compact fiber optic ultrasound transducer with integrated ultrasound emission and detection is developed. The transducer an emission pressure of 0.45MPa and a noise equivalent pressure of 72.8Pa.
Influence of the lattice orientation onto ultra-short pulsed laser machining of semiconductors
Authors: Neuenschwander B. , Gafner M. , Remund S. M. , Chaja M. W.
Published: September 2022

(100) oriented silicon and germanium wafers, machined with 10 ps pulses in the NIR (1064 nm), clearly show two ablation regimes when the peak fluence is raised from the threshold to several J/cm2. In the first regime the roughness increases with the fluence due to strong cavity formation whereas the second regime is dominated by the formation of a melt film leading to smooth and flat surfaces. For (110) and (111) oriented wafers this second regime cannot be observed and the surface roughness continuously increases when the fluence is raised. A similar behaviour is observed for all orientations and fs-pulses or burst mode.
Ultrafast Laser Fabrication of Efficient Volume Bragg Gratings at Depth in Silica
Authors: McArthur S. R. , Siliprandi J. , MacLachlan D. G. , Benoit A. , Thomson R. R. , Ross C. A.
Published: September 2022

By using a spatial light modulator to correct for depth-dependent aberrations, we demonstrate the ultrafast laser fabrication of volume gratings at depths up to 850 µm that exhibit 45% efficiency for 633 nm light.
Seeing the Big Picture: Basin-wide Methane Emissions Surveys Reveal the Problem and a Solution
Authors: Berman Elena , Yakovlev Petr , Wetherley Erin
Published: September 2022

Effective methane emissions mitigation depends on a tradeoff between survey periodicity and sensor sensitivity, influenced by super-emitter frequency. We combine airborne emissions measurements with bottom-up modeling to optimize leak detection strategies that reduce basin-scale emissions.
Twin-Neural-Network Differential Autoencoder and Dynamic-Contrast Optical Coherence Tomography for Cancer Diagnostics
Authors: Nolte David , Jalal Shadia , An Ran
Published: September 2022

Dynamic-contrast optical coherence tomography (OCT) using en face digital holography senses intracellular dynamics in living tumor tissue. Intracellular motions produce ultra-low-frequency Doppler shifts for speeds down to nanometers per second (10 mHz) and up to microns per second (10 Hz). Cancer drugs applied to human tumor biopsies induce changes in these dynamics and produce specific Doppler signatures of therapeutic efficacy. We have developed a new type of deep neural network that performs as a differential autoencoder with high common-mode rejection that isolates Doppler signatures associated with drug response and patient outcomes. The differential autoencoder is applied to Doppler signals from a clinical trial of esophageal cancer patients.
Environmental sensing by the propagation of structured light through turbulence channel
Authors: Chen Zhaozhong , Daly Ultan , Boldin Aleksandr , Cheng Mingjian , Lavery Martin P. J.
Published: September 2022

OAM beams are distorted by changes in weather as they propagate through air. We demonstrate an experimental measurement system that identifies weather conditions with 99.6% accuracy in 12 seconds, considerably faster than traditional scintillometer approaches.
Free-form and Large Lens Characterization Using At-focus Scanning Ptychographic Metrology
Authors: Ivanic Bojana , Goeckeritz Jeremy , Goldberger David , Barolak Jonathan , Adams Daniel E.
Published: September 2022

Here we implement and test a new ptychographic metrology for characterization of large optical components, including transmissive and reflective systems. As proof of concept, we present the phase and transmission profile of a short focus, aberrated lens.
Temporal self-compression and self-frequency shift of sub-μJ pulses at 8 MHz repetition rate
Authors: Tani Francesco , Lampen Jacob , Butryn Martin , Frosz Michael H. , Jiang Jie , Fermann Martin , Russell Philip St. J.
Published: September 2022

We report a turn-key system producing few-fs pulses at 8 MHz repetition rate for pump energies as low as 220 nJ, and shifting their central wavelength continuously between 1100 nm and 1400 nm.
Fiber-Optic Sensors for Strain Measurement in a Spallation Neutron Target
Authors: Liu Yun , Long Cary D. , Sangrey Robert L. , Winder Drew E.
Published: September 2022

A fiber-optic strain sensor has been developed based on a low-coherence interferometer and an all-fiber phase-shifted demodulator. The sensor has been applied to the measurement of megahertz dynamic strains in a high-radiation spallation neutron target.
Graphene-Oxide Based Humidity Sensor Employing Few Micron Diameter Optical Fiber
Authors: Mohan Sunil , Banoo Fatima , Khijwania Sunil
Published: September 2022

Novel relative-humidity (RH) sensor employing GO as sensing medium onto few micron diameter optical fiber is reported. Very high sensitivity with linear response over dynamic range 5%RH- 87%RH is observed.
High-Resolution Sensing at Sub-10 Hz Frequencies using a Mach-Zehnder Fabry-Perot Hybrid Fiber Interferometer
Authors: Hoque Nabil Md Rakinul , Duan Lingze
Published: September 2022

We report record-setting strain resolutions achieved at sub-10 Hz frequencies using a Mach-Zehnder Fabry-Perot hybrid fiber interferometer, which is supported by an off-the-shelf diode laser and a simple soil-based insulation system.
Chip- and Wafer-Scale Manufacturing of High-Power Membrane-External-Cavity Surface-Emitting Laser Gain Elements
Authors: Cole Garrett D. , Nguyen Catherine , Follman David , Bek Roman , Zimmer Michael , Witz Norbert , Zhang Mingyang , Albrecht Alexander R. , Sheik-Bahae Mansoor
Published: September 2022

We describe the manufacturing of high-power membrane-external-cavity surface-emitting laser (MECSEL) gain elements. This process leverages low-temperature direct bonding to combine multi-quantum-well active regions with single-crystal SiC heatspreaders, yielding output powers >20 W at 1178 nm.
Mid-infrared silicon-integrated high-bandwidth GeSn PIN photodetectors and LEDs
Authors: Atalla Mahmoud R. M. , Assali Simone , Koelling Sebastian , Daligou Gérard , Attiaoui Anis , Luo Lu , Lemieux-Leduc Cédric , Abdi Salim , Moutanabbir Oussama
Published: September 2022

Monolithic all-group IV GeSn PIN detector and emitting devices were fabricated and their bandwidth was measured. The obtained high bandwidth PDs were utilized in time resolved spectroscopy in the picosecond range.
Optoelectronic Reservoir Computer for Early Stage Alzheimer’s Disease detection
Authors: Mwamsojo Nickson , Merghem Kamel , El–Yacoubi Mounim A. , Frignac Yann , Benkelfat Badr-Eddine , Rigaud Anne-Sophie , Lehmann Frederic
Published: September 2022

An optoelectronic Reservoir Computer is proposed and implemented numerically and on physical hardware for early-stage Alzheimer’s disease detection for the first time. The approach yields classification accuracy of 85% surpassing state-of-the-art performances.
The Integrated Neurophotonics Paradigm
Authors: Roukes Michael L.
Published: September 2022

Integrated neurophotonics can surmount limitations of existing methodologies to enable fast and dense large-scale functional imaging of neuronal activity from within the brain itself. Implantable lens-less nanophotonic arrays yield cellular resolution at arbitrary brain depths.
Distance Measurement using Opto-Electronic Oscillators
Authors: Elglmady Karim , Terra Osama , Hussein Hatem , Medhat Mohamed
Published: September 2022

Precise distance measurement plays an important role in surveying, construction and advanced engineering. A relatively simple method is proposed here to measure distances with sub-millimeter accuracy based on the low-frequency optoelectronic oscillations.
Electro-plasmonic Nanoantennas for In Vivo Neural Sensing
Authors: Hardy Neil , Habib Ahsan , Ivanov Tanya , Yanik Ahmet A.
Published: September 2022

Electro-plasmonic nanoantennas (NeuroSWARM3) translate local electric fields to changes in scattering intensity to wirelessly sense neural activity with high resolution, throughput, and SSNR while operating in the NIR spectrum for deep tissue penetration.
Absolute Frequency Referencing in the Long-Wave Infrared using a Quantum Cascade Laser Frequency Comb
Authors: Komagata K. N. , Gianella M. , Jouy P. , Kapsalidis F. , Shahmohammadi M. , Beck M. , Matthey R. , Wittwer V. J. , Hugi A. , Faist J. , Emmenegger L. , Südmeyer T. , Schilt S.
Published: September 2022

We demonstrate that mid-infrared quantum cascade laser frequency combs are highly suitable as high-accuracy frequency references. We fully stabilize the comb and exploit it for comb-calibrated spectroscopy, achieving 100-kHz frequency accuracy at 7.7 μm.
Multimodal imaging using combined Optical Fourier Ptychographic Microscopy and Atomic Force Microscopy for biological measures
Authors: Wagner Omer , Winkel Alexander K , Kreysing Eva , Franze Kristian
Published: September 2022

We present a platform that perform live imaging using Fourier Ptychographic Microscopy co-localised with Atomic Force Microscopy. This specially fit emerging research on cellular biological processes regulated by tissue mechanics, including neuronal growth and stem-cell differentiation.
Dynamic Ellipsometry Measurement Based on a Simplified Independent Locking Dual-Comb System
Authors: Zhang Ruixue , Shi Liheng , Zhou Siyu , Wu Guanhao
Published: September 2022

High-speed and dynamic ellipsometry spectroscopic measurement has been developed with an independent locking dual-comb system. The measurement precision and dynamic performance of the proposed system are demonstrated experimentally.
Lens-Free Optical Physical Unclonable Function with Native Fibrous Media
Authors: kim Min Seok , Lee Gil Ju , Choi Seung Ho , Leem Jung Woo , Kim Young L. , Song Young Min
Published: September 2022

We propose a novel optical PUFs by adopting native silk with its intrinsic properties of randomly disordered structures. The demonstrated silk PUFs present high reproducibility and randomness in bit extractions.
High Speed Etched Facet Traveling Wave Modulators for Micro Transfer Print Integration
Authors: Meissner Thomas , Zhu Si , Brunelli Simone Šuran , Carter Andrew , Young Adam , Zhang Chongxin , Wang Lei , Meena Gopikrishnan G. , Moreira Renan , Coldren Larry , Klamkin Jonathan
Published: September 2022

Traveling wave etched facet waveguide modulators are designed and fabricated. Measurements demonstrate a 56 GHz bandwidth at 1275 nm with power handling greater than 20 dBm. Micro transfer printing onto silicon has also been demonstrated.
Slow light engineering in the hollow-core vertical photonic crystal waveguide for gas sensing
Authors: Rostamian Ali , Midkiff Jason , Yoo Kyoung Min , Chen Ray T.
Published: September 2022

In this paper, we present a hollow-core vertical photonic crystal waveguide geometry in silicon for gas detection in the mid-infrared region. The dispersion is engineered to enhance light-matter interactions inside the hollow-core defect.
Silicon Integrated Terahertz Quantum Cascade Ring Laser Frequency Comb
Authors: Jaidl M. , Opačak N. , Kainz M. A. , Theiner D. , Limbacher B. , Beiser M. , Giparakis M. , Andrews A. M. , Strasser G. , Schwarz B. , Darmo J. , Unterrainer K.
Published: September 2022

We demonstrate terahertz quantum cascade lasers realized in ideal ring resonators that are mounted episide-down on a silicon substrate by a die-bonding technique. Devices show much reduced threshold current densities and free-running comb formation.
Measuring Optical Chirality with Unpolarised Light
Authors: Restuccia Sara , Gibson Graham M. , Cronin Leroy , Padgett Miles J.
Published: September 2022

We measure optical chirality within an apparatus for demonstrating the Bell inequality. This differs from current polarimetry as it enables the measurement of optical activity with unpolarised light.
Controlling spatial coherence with a complex medium
Authors: Nardi Alfonso , Tebbenjohanns Felix , Rossi Massimiliano , Divitt Shawn , Norrman Andreas , Gigan Sylvain , Frimmer Martin , Novotny Lukas
Published: September 2022

The mutual correlations between spatially separated optical fields can be controlled employing an optical linear port. By shaping the wavefront of the light transmitted through a complex medium, we realize this port for three beams.
Nanometer-precision long-distance LiDAR using soliton microcombs
Authors: Chen Hao-Jing , Liu Peng , Yao Lu , Shi Kebin , Gong Qihuang , Xiao Yun-Feng , Yang Qi-Fan
Published: September 2022

A time-of-flight LiDAR is demonstrated using a single soliton frequency comb generated in an ultrahigh-Q silica microresonator. Utilizing an electro-optic sampling Sagnac interferometer, distance measurement with 8-nm precision at 1-km range is achieved.
High-flux table-top hard X-ray source driven by few-cycle 5 µm OPCPA at a 1 kHz repetition rate
Authors: Koç A. , Hauf C. , Woerner M. , von Grafenstein L. , Ueberschaer D. , Bock M. , Griebner U. , Elsaesser T.
Published: September 2022

A table-top femtosecond hard X-ray source at 8 keV provides a flux of up to 1.5 × 1012 photons/s. Few-cycle 5 µm laser pulses serve as driver that are generated by a multiple-stage optical parametric chirped-pulse amplifier (OPCPA).
Unifying cavity solitons and frequency combs in active and passive driven resonators
Authors: Piccardo Marco , Columbo Lorenzo , Prati Franco , Lugiato Luigi A. , Brambilla Massimo , Gatti Alessandra , Silvestri Carlo , Gioannini Mariangela , Opacak Nikola , Schwarz Benedikt , Capasso Federico
Published: September 2022

We introduce a generalized capturing the physics of frequency combs generated from active and passive cavities. This unification opens the possibility to control the morphogenesis of patterns such as Turing rolls and temporal solitons.
Ultrafast All-Fiber Mid-Infrared Laser Sources
Authors: Février Sébastien , Tiliouine Idris , Granger Geoffroy , Jimenez Cristian , Leventoux Yann , Jedidi Melek , Couderc Vincent
Published: September 2022

We report on all-fiber construction of ultrafast mid-infrared sources with up to 500 kW peak power at MHz repetition rate. We illustrate the potential of the sources by generating supercontinuum in chalcogenide fibers.
Dual-Comb Interferometry with Fiber-Based Comb Synthesizers
Authors: Picqué Nathalie
Published: September 2022

Self-referenced frequency-comb generators based on ultrafast fiber lasers enable new approaches to interferometry, owning to their ultralow noise and extreme stability. Benefits for precision spectroscopy over broad spectral bandwidths and for digital holography are presented.
Quantum cascade laser frequency combs covering up to 80 cm-1 for dual-comb spectroscopy at 8μm.
Authors: Patrick Link , Dikmelik Yamac , Lascola Kevin , Wysocki Gerard
Published: September 2022

Quantum cascade laser frequency combs with up to 80cm-1 spectral coverage at ~8εm are demonstrated. We perform dual comb spectroscopy of gaseous species with up to 210 modes covering 63 cm-1 of spectral range.
Nyquist cavity solitons in fiber resonators
Authors: Xue Xiaoxiao , Grelu Philippe , Yang Bofan , Wang Mian , Li Shangyuan , Zheng Xiaoping , Zhou Bingkun
Published: September 2022

Temporal solitons can arise in spectrally confined cavities with no chromatic dispersion. When the filter order tends to infinity, the soliton tends to a Nyquist pulse with a fully confined ultra-flat spectrum and a transform-limited waveform.
Realization and Investigation of Non-Reciprocal Raman Gain in a Nanophotonic System
Authors: Pucher S. , Liedl C. , Jin S. , Rauschenbeutel A. , Schneeweiss P.
Published: September 2022

We demonstrate non-reciprocal amplification of light using Raman gain. The non-reciprocal response originates from spin-polarized atoms chirally coupled to a nanophotonic waveguide. We show that the gain scales superlinearly with the number of emitters.
Mode-locking induced by continuous wave driving in a fiber laser
Authors: Arabí Carlos Mas , Englebert Nicolas , Parra-Rivas Pedro , Gorza Simon-Pierre , Leo François
Published: September 2022

We analyze the formation of solitons in a coherently driven fiber laser. By means of bifurcation analysis, we demonstrate that coherent continuous wave driving can induce mode-locking without saturable absorption.
Photonics PNT Based on Multi-Tone Continuous Wave Ranging
Authors: Bayer Mustafa Mert , Atalar Ataberk , Li Xun , Boyraz Ozdal
Published: September 2022

When GPS signals are not available alternative positioning, navigation, and timing (PNT) systems become indispensable. We propose and experimentally demonstrate a photonic PNT system that localizes targets with ~10cm separation and <5cm resolution at a 1km distance.
Ultrafast double-pulse ablation of monolayer MoS2
Authors: Ahmad Sabeeh Irfan , Obeid Joseph A. , Solomon Joel M. , Lu Li-Syuan , Wu Yu-Chen , Chang Wen-Hao , Luo Chih-Wei , Her Tsing-Hua
Published: September 2022

Two pulse ablation experiments were conducted on monolayer MoS2 with various substrates. The hole size variation is explained via bandgap renormalization and carrier relaxation for different pulse separations.
Magnetic-Field Tuning of Dielectric Metasurfaces
Authors: Izdebskaya Y. , Yang Z. , Liu M. , Choi D.-Y. , Komar A. , Neshev D. N. , Shadrivov I. V.
Published: September 2022

We demonstrate dynamic tuning of dielectric optical metasurfaces infiltrated with liquid crystals using external magnetic field. We show that our approach does not require pre-alignment and refractive index of liquid crystal can be dynamically changed.
Exceptional-point encirclement in an integrated non-Hermitian optomechanical system
Authors: Tian Feng , Ota Yasutomo , Iwamoto Satoshi
Published: September 2022

We propose and numerically demonstrate an integrated non-Hermitian optomechanical system capable of exceptional-point encirclement in a deterministic manner. The proposed scheme opens a way for investigating non-Hermitian optomechanics on chip.
Dynamic beam steering using tunable hybrid metasurfaces
Authors: Abdollahramezani Sajjad , Adibi Ali
Published: September 2022

We experimentally demonstrate dynamic beam steering in the near-infrared wavelength range through active control over the interaction between the fundamental plasmonic and photonic modes of a hybrid metallic-dielectric metasurface incorporating phase-change chalcogenide Ge2Sb2Te5.
Q-switched mode-locking by NPR in As2S3 tapers
Authors: Alamgir Imtiaz , Rochette Martin
Published: September 2022

We demonstrate a Thulium-doped fiber laser that is Q-switched mode-locked via nonlinear polarization rotation in an As2S3 taper. The laser allows single and multiwavelength pulses, tunable central wavelength and tunable multiwavelength separation.
Wafer-Scale-Compatible Substrate Undercut for Ultra-Efficient SOI Thermal Phase Shifters
Authors: van Niekerk Matthew , Deenadalayan Venkatesh , Rizzo Anthony , Leake Gerald , Coleman Daniel , Tison Christopher C. , Fanto Michael L. , Bergman Keren , Preble Stefan
Published: September 2022

We present a thermally isolated phase shifter through undercutting the silicon waveguide and resistive heaters, yielding a low-power (Pπ = 1.2 mW) and low-crosstalk tunable Mach-Zehnder interferometer.
Noise Figure and Saturation Characteristics of Multi-section Semiconductor Optical Amplifier for Data Center Networks
Authors: Srivastava Manas , Hammad Mohab N. , Ahmad Syed Tajammul , Sharma Ankit , Kaszubowska-Anandarajah Aleksandra , Landais Pascal , Anandarajah Prince M.
Published: September 2022

The noise figure and saturation power of a multi-section SOA, with non-uniform bias conditions, are characterized. Optimum biasing achieves 2 dB improvement at a BER of 10−9 for 10 Gb/s OOK transmission over 25 km.
Repeated thermally deposited and annealed gold thin films as SERS-active substrate
Authors: Awasthi Vimarsh , Malik Pariksha , Goel Richa , Srivastava Pankaj , Dubey Satish Kumar
Published: September 2022

Size of gold nano-islands and gap between them is engineered using repeated gold film deposition and then annealing in the presence of argon gas. Increase in the density of nano-islands resulted in better SERS performance.
The photorefractive effect in integrated chalcogenide nonlinear photonic device and its application
Authors: Wu Jiayue , Huang Jianteng , Xia Di , Zhao Jiaxin , Wang Zifu , Li Yufei , Luo Liyang , Zhang Bin , Li Zhaohui
Published: September 2022

We demonstrate the photorefractive effect of chalcogenide (ChG) microresonators in the optical parametric oscillation (OPO) process by our homemade in-situ dispersion measurement. By fine thermal annealing post-treatment, a robust OPO was achieved in on-chip ChG microresonators.
Continuous-wave High-power Self-phase-locked Optical Parametric Oscillator
Authors: Sukeert  , Kumar S. Chaitanya , Ebrahim-Zadeh M.
Published: September 2022

We report on the observation of self-phase-locking in a degenerate continuous-wave (cw) green-pumped optical parametric oscillator (OPO) based on MgO:PPLN, delivering up to 250 mW of phase-locked output power at the wavelength of 1064 nm.
All-Optical 25-Gbps Silicon Carbide Kerr Switching Intensity Modulator On Silicon Platform
Authors: Cheng Chih-Hsien , Fu Cai-Syuan , Set Sze Yun , Yamashita Shinji , Lin Gong-Ru
Published: September 2022

All-optical intensity modulator at 25 Gbps in silicon carbide-based Kerr switching with a nonlinear refractive index of 2.88×10-13 cm2/W is demonstrated with an SNR of 5.6 dB and an ER of 11.8 dB.
Numerical study of laser excitation in Silicon using Three-Temperature model
Authors: Venkat Prachi , Otobe Tomohito
Published: September 2022

Laser excitation in Silicon is studied using a new Three-Temperature model. The thresholds for partial melting and electron emission show good agreement with experimental results. Comparison with two-temperature model is also done.
Generation of arbitrarily oriented spatiotemporal optical vortices with nonlocal metasurfaces
Authors: Wang Haiwen , Guo Cheng , Jin Weiliang , Song Alex Y. , Fan Shanhui
Published: September 2022

We investigated a family of spatiotemporal optical vortices with arbitrarily oriented orbital angular momentum, and introduce a compact metasurface device for its generation. This is achieved by engineering the transmission nodal line of the device.
High aspect ratio and high-speed glass drilling with femtosecond GHz-bursts
Authors: Manek-Hönninger Inka , Niane Samba , Bonamis Guillaume , Balage Pierre , Audouard Eric , Hönninger Clemens , Mottay Eric , Lopez John
Published: September 2022

We report on high aspect ratio and high-speed glass drilling with femtosecond GHz-bursts. The drilling process dynamics of deep and high-quality holes in different glasses and sapphire is monitored by in-situ microscopy and thermal imaging.
1 Pb/s Transmission in a 125μm diameter 4-core MCF
Authors: Puttnam Benjamin J. , Luis Ruben S. , Rademacher Georg , Awaji Yoshinari , Furukawa Hideaki
Published: September 2022

We achieve petabit/s transmission with 801 x 24.5 GBd PDM-256QAM carriers over 20 THz bandwidth in 4 cores of standard cladding diameter multi-core fiber using doped-fiber and Raman amplification with a novel freespace multi-core pump module.
On-chip electro-optic frequency comb generation using a heterogeneously integrated laser
Authors: Lufungula Isaac Luntadila , Shams-Ansari Amirhassan , Renaud Dylan , de Beeck Camiel Op , Cuyvers Stijn , Poelman Stijn , Roelkens Gunther , Loncar Marko , Kuyken Bart
Published: September 2022

We demonstrate the first on-chip resonant electro-optic frequency comb source on thin-film lithium niobate with an electrically-pumped heterogeneously integrated laser.
Scalable two-dimensional photonic phased array with compact and ultralow power resonator phase shifters
Authors: Chalupnik Michelle , Singh Anshuman , Loncar Marko , Soltani Moe
Published: September 2022

We demonstrate two-dimensional silicon photonic phased arrays with compact ultralow power microresonator phase-shifters within the array. Each phase-shifter consumes an average ~100 µW static power for resonance alignment, and ~25 µW power for far field beamforming.
Nano-Opto-Electro-Mechanical Relaxor Ferroelectrics
Authors: Karvounis Artemios , Grange Rachel
Published: September 2022

We harness the giant electro-mechanical force of relaxor ferroelectrics to fabricate flexible BaTiO3 nanobeams, adjacent to plasmonic metasurfaces. We record reflection modulation of near-infrared light up to 2.936 ±0.008% across the kHz to MHz range.
Optical Teleportation using Electro-Optic Plasmonic Graphene Waveguide
Authors: Qasymeh Montasir , Asjad Muhammad , Eleuch Hichem
Published: September 2022

We demonstrate that optical teleportation can be realized by using two interacting optical fields in an electrically driven graphene waveguide. The simulations show that the proposed system can achieve high-fidelity teleportation over significant transmission distances.
Multiple-access channel with a single photon
Authors: Zhang Yujie , Chen Xinan , Chitambar Eric , Lorenz Virginia O.
Published: September 2022

We present and experimentally demonstrate a quantum-enhanced multiple-access channel consisting of multiple senders, a single receiver and a single particle as the medium. A Bell-type inequality violation and greater capacity rate sum are observed.
Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity
Authors: Hoepker Jan Philipp , Protte Maximilian , Eigner Christof , Silberhorn Christine , Sharapova Polina , Sperling Jan , Meier Torsten , Bartley Tim J.
Published: September 2022

We demonstrate theoretically and experimentally complex correlations in the photon numbers of two-mode quantum states using measurement-induced nonlinearity. For this, we combine the interference of coherent states and single photons with photon sub-traction.
Phase Locking of Pulsed Squeezed Light Generated by a Single-Pass Optical Parametric Amplifier
Authors: Taguchi Yoshitaka , Oguchi Kenichi , Xu Zicong , Cheon Donguk , Takahashi Shun , Sano Yuki , Harashima Fumiya , Ozeki Yasuyuki
Published: September 2022

We propose and demonstrate a phase-locking scheme for squeezed vacuum generated by a single-pass optical parametric amplifier. Stable phase locking of picosecond squeezed vacuum with a squeezing level of −1.7 dB was achieved.
Sub-ps Thermionic Charge Injection Effect on Exciton Formation Dynamics at Tungsten disulfide (WS2)/Metal Schottky Junction
Authors: Rojas-Aedo R. , Keller K. R. , Zhang H. , Schweizer P. , Allerbeck J. , Brida D. , Jariwala D. , Maccaferri N.
Published: September 2022

We employ an optical pump-push-probe scheme to study how charge injection affects the dynamics of exciton formation in WS2. The transient response depends on the ratio of excited and injected electrons, revealing their effective interaction.
Spectral emissivity modelling in multi-resonator systems
Authors: Audhkhasi Romil , Povinelli Michelle L.
Published: September 2022

We propose a semi-analytical spectral prediction tool for coupled, multi-resonator systems. We demonstrate the accuracy of our method by predicting and optimizing the spectral response of a thermal emitter composed of coupled hBN ribbons.
High Power Ultrafast laser for High Brightness X-ray source
Authors: Courjaud A. , Durand M. , Pallas F. , Sevillano P. , Song Panyi , Barbrel Benjamin
Published: September 2022

We report on a stable 74mJ 1kHz ultrafast Yb laser dedicated for a high-brightness X-ray source based on plasma generation. Preliminary results on the X-ray source are presented using 25mJ and 100Hz.
High resolution soft X-ray spectrometer for FEL characterisation and optimisation
Authors: Arrell C. , Thominet V. , Arbelo Y. , Wagner U. , Gradwohl N. , Prat E. , Patthey L. , Follath R.
Published: September 2022

A high resolution (∆E < 100 meV) single shot spectrometer for the soft X-ray at SwissFEL is reported. Use of this high fidelity single shot data to develop new modes of operations of operation is described.
Inverse-Designed Optical Image Compression Metamaterials
Authors: Moeini Mohammad Moein , Sounas Dimitrios L.
Published: September 2022

For the first time, we present image redundancy reduction, that is image compression, through inversely-designed metamaterials. The optimized metamaterial performs passive image compression at the speed of light without the need of transistor-based computations.
Second-order nonlinear optics of noncollinearly arranged plasmonic Au nanorod dimer structure
Authors: Sugita Atsushi , Muroi Kenshin , Oh Shumma
Published: September 2022

Second-order nonlinear optics was studied about noncollinearly arranged dimeric Au nanorods. The efficient SHG conversions were attributed to noncentro-symmetrically distributed, intense near-fields at nanogap. The roles of the asymmetry on the nonlinearities will be discussed.
Shape Engineered Ultrafast Carrier Dynamics in Lead Halide Perovskite Nanocrystals
Authors: Bera Santu Kumar , Bera Suman , Pradhan Narayan , Adarsh K. V.
Published: September 2022

We demonstrate dynamical photo-physics of shape-engineered cube (6 facets), rhombic-dodecahedron (12 facets), and rhombicuboctahedron (26 facets) CsPbBr3 nanocrystals using ultrafast pump-probe spectroscopy. Results show remarkably contrasting carrier dynamics and Burstein-Moss effect for tuning optoelectronic properties.
Giant Nonlinear Optical Response in VS2/Ti3C2 MXene Nanohybrid
Authors: Kumar Vinod , Sharma Aditya , Rout Chandra S. , Adarsh K.V.
Published: September 2022

We experimentally and theoretically demonstrate giant excited-state absorption and positive nonlinear refractive index in VS2/MXene nanohybrid for fs pulses. The hallmark result is attributed to direct charge transfer, and a benchmark optical limiter is fabricated.
Diffraction-Free Propagating Electromagnetic Skyrmions
Authors: Shen Yijie , Papasimakis Nikitas , Zheludev Nikolay I.
Published: September 2022

We report on a family of diffraction-free toroidal light pulses, exhibiting propagation-robust skyrmionic topologies that persist over arbitrary distances.
Wavelength Multiplexing in an off-plane Computer - Generated Waveguide Hologram using binary grating
Authors: Sinha Rajat Kumar , Aborahama Yousuf , Mojahedi Mo
Published: September 2022

A novel wavelength multiplexing scheme for off-plane Computer-Generated Waveguide Holography using dislocated binary grating is proposed. Phase modulation is optimized to form a smiley face at λ= 590nm and a danger sign at λ= 650nm.
Nonlocal Soft Plasmonics: Investigating the ionic plasmon effects of planar electrolyte systems
Authors: Narayan Preethi Ramesh , David Christin
Published: September 2022

We discuss the nonclassical interactions between electrolytes and active planar solid interfaces caused by optical excitation, using a multi-fluid model. The nonlocal plasmonic properties are investigated under tunable ionic system parameters and different illumination conditions.
Distinction of EIT and ATS using photonic crystal nanobeam cavities-waveguide coupled system
Authors: Nie Tongyu , Gao Yongpan , Yang Ying , Wang Chao , Yang Daquan , Tian Huiping
Published: September 2022

Here we demonstrate the electromagnetically induced transparency and Autler–Townes splitting in a photonic-crystal-nanobeam-cavity-waveguide coupled system for the first time. This work enables to evaluate the interference of fields in integrated optical system.
All-Optical Bistability from Quantum Dots in a Photonic Crystal Cavity
Authors: Buyukkaya Mustafa Atabey , Lee Chang-Min , Mansoori Ahmad , Balakrishnan Ganesh , Waks Edo
Published: September 2022

We experimentally demonstrate room temperature all-optical bistability at telecom wavelengths using a nanobeam photonic crystal cavity embedded with an ensemble of quantum dots. Reflectivity measurements are performed to confirm the thermo-optic nature of the bistability.
Plasmon Satellites in Photoemission: Application to Metal Nanoparticles
Authors: Gonçalves P. A. D. , de Abajo F. Javier García
Published: September 2022

We theoretically describe the electron–boson interaction governing photoemis-sion from plasmonic nanoparticles and predict that the spectrum plasmon satellite peaks, whose intensity depends on the experimental parameters and on the plasmon’s initial state.
Analysis of Key Post-Processing for Physical Layer Key Generation in Optical Communication
Authors: Huang Jie , Li Yajie , Zhu Kongni , Song Haokun , Zhao Yongli , Zhang Jie
Published: September 2022

This paper analyzes the post-processing security through information entropy and compares three privacy amplification methods for physical layer key generation. Simulation reveals key generation rate and security should be jointly considered when applying privacy amplification.
Setting Experimental Bounds on Entangled Two-Photon Absorption Cross Sections
Authors: Parzuchowski Kristen M. , Mikhaylov Alexander , Mazurek Michael D. , Wilson Ryan N. , Lum Daniel J. , Gerrits Thomas , Camp Charles H. , Stevens Martin J. , Jimenez Ralph
Published: September 2022

We show strong evidence—from both fluorescence and transmittance measurements—that entangled two-photon absorption cross sections are several orders of magnitude lower than many prior reports have claimed.
Experimental study of the validity of entangled two-photon absorption measurements in organic compounds
Authors: Corona-Aquino Samuel , Calderón-Losada Omar , Li-Gómez Mayte Y. , Cruz-Ramírez Héctor , Álvarez-Venicio Violeta , del Pilar Carreón-Castro María , de J. León-Montiel Roberto , U’Ren Alfred B.
Published: September 2022

We present a study of entangled two-photon absorption (ETPA) in Rhodamine B and Zinc Tetraphenylporphirin, using different experimental schemes. Our results suggest that while photon-absorption takes place, it is not due to ETPA.
Sustainable porous Polydimethylsiloxane for efficient radiative cooling
Authors: Zhou Lyu , Rada Jacob , Zhang Huafan , Song Haomin , Ooi Boon S. , Gan Qiaoqiang
Published: September 2022

We reported a porous PDMS fabricated by a sustainable process. The obtained porous PDMS strong visible scattering and thermal emission, resulting in an efficient temperature reduction of 4.6 °C under direct solar irradiation.
High performance micrometer scale magnetometer based on dielectric metasurfaces
Authors: Talker Eliran , Han Zhengli , Dikopoltsev Mark , Barash Yefim , Mazurski Noa , Levy Uriel
Published: September 2022

We demonstrate a miniaturized, high sensitivity magnetometer by combining micrometer vapor cells and polarization selective dielectric metasurfaces. With Bell-Bloom scheme[1] we obtained magnetic field sensitivity of

~
3
p
T
/

H
z

, paving the way towards miniaturized magnetic sensing.
Approaching the Solar Planck Limit with Dual-Comb Passive Thermal Light Spectroscopy
Authors: Tsao Eugene , Lind Alex , Chang Peter , Fredrick Connor , Hoghooghi Nazanin , Quinlan Franklyn , Diddams Scott
Published: September 2022

We demonstrate dual-comb passive thermal light spectroscopy at 1550 nm that pushes below the estimation noise regime and approaches the power spectral density of the Sun, as described by Planck’s black body law.
Crust Deformation Detection System based on Coherent Optical Fiber Sensing Technology
Authors: Shi Zhengxuan , Yang Jiang , Li Hao , Yan Baoqiang , Yuan Qiong , Sun Qizhen , Yan Zhijun
Published: September 2022

We demonstrate fiber crust deformation detection system based on coherent phase detection. With sensitivity enhancement design and compensation scheme, the system can reach a strain resolution of 151pε@ 0.01Hz, which could record the crust deformation.
Modeling the Image Formation Process in Fourier Domain Optical Coherence Microscopy for a Bessel-like LP02 Mode from a Higher Order Mode Fiber
Authors: Classen Anton , Sen Dipankar , Grüner-Nielsen Lars , Gibbs Holly C. , Esmaeili Shahriar , Hemmer Philip , Baltuska Andrius , Sokolov Alexei V. , Leitgeb Rainer A. , Fernández Alma , Verhoef Aart J.
Published: September 2022

We model the full image formation process in FD-OCM for a Bessel-like LP02 illumination beam as well as Gaussian beams. The LP02 beam generated in a HOM fiber enables design flexibility and an extended DOF.
Cd1−xMnxTe as a magneto-optical material for miniaturized optical isolators: A broad-range spectroscopic analysis of relevant optical properties
Authors: Tyborski Christoph , Hassan Muhammad T. , Schiemangk Max , Wicht Andreas
Published: September 2022

We show wavelength-dependent measurements of Verdet constants and reflection/transmission values for various stoichiometric ratios of Cd1
−x
Mn
x
Te. From the data we derive absorption coefficients that help to design optical isolators for GaAs-based diode lasers.
Integration of single GaN micro-lenses with high index semiconductors by transfer printing
Authors: Wessling Nils Kolja , Ghosh Saptarsi , Guilhabert Benoit , Kappers Menno , Oliver Rachel A. , Dawson Martin D. , Strain Michael J.
Published: September 2022

Suspended GaN micro-lenses are micro-transfer printed onto diamond to increase light-coupling efficiency. We demonstrate micro-lenses with 4 − 13 µm diameter, up to 3 µm height and r.m.s. surface roughness below 2 nm.
Ultra-broadband, Low Loss 3dB Splitter in Silicon Photonics Waveguides
Authors: Maidment Pierre , Sorel Marc
Published: September 2022

The design of a silicon photonic broadband Y-splitter by particle-swarm optimization algorithm is presented. Across the broad wavelength range 1.25-1.55m, the splitter shows simulated losses <0.17dB, and experimental losses of 0.18dB (1.31m) and 0.26dB (1.55m).
Stability and deterministic generation of single solitons and soliton crystals in microresonators with avoided crossings
Authors: Qi Zhen , D’Aguanno Giuseppe , Carruthers Thomas F. , Gat Omri , Menyuk Curtis R.
Published: September 2022

We determine the stable regions in the parameter space of single soliton and soliton crystal frequency combs in microresonators with avoided crossings. We show that solitons are obtained deterministically when the stable region is enlarged.
Picometer-precise post-processing of optical microresonators via slow-cooking
Authors: Gardosi Gabriella , Mangan Brian J. , Sumetsky Misha
Published: September 2022

The recently discovered slow optical cooking method is developed to demonstrate the fabrication of optical microresonators having smooth and dramatically shallow nanoscale profile introduced along a water filled silica microcapillary with picometer wavelength precision.
Fast Dynamics of 10 μm Breakdown in Air by Time and Space Resolved Visible Interferometry
Authors: Welch Eric , Tochitsky Sergei , Matteo Daniel , Joshi Chan
Published: September 2022

We report detailed study of temporal and spatial dynamics of air plasma produced by a focused to 1012 W/cm2 CO2 laser. A record ~109 cm/s velocity of electron avalanche expansion is measured with picosecond resolution.
High resolution fiber grating dynamic strain sensor with broadband light
Authors: Liu Shuting , Liu Qingwen , Zhao Shuangxiang , He Zuyuan
Published: September 2022

A fiber grating strain sensing system based on self-reference mechanism was developed. The resolution is 34.6pε/√Hz at 1kHz, which is several orders of magnitude better than traditional FBG systems.
Spectroscopy of 5s5p3P0-5s4d3D1 with cold Sr atoms
Authors: Zhang Shengnan , Ganesh Sandhya , Tiwari Balsant , Ramchurn Preetam , Bongs Kai , Singh Yeshpal
Published: September 2022

We perform spectroscopy of 5s5p3P0-5s4d3D1 in magneto-optically trapped Sr atoms for various power of 2.6 μm laser. We develop a compact distributed feedback (DFB) laser at 2.6 μm as the light source for probing spectroscopy. The absolute frequency of the 5s5p3P0-5s4d3D1 transition is expected to be measured by the accurate spectroscopy with the frequency comb or high-resolution wavemeter.
Gold Metasurface for Passive Mode-locking at 1 µm Region
Authors: Chen Zhijin , Gui Lili , Xiao Xiaosheng , Meng Chao , Bozhevolnyi Sergey I. , Xu Kun
Published: September 2022

We demonstrate passively mode-locked ytterbium-doped fiber laser by using gold metasurface saturable absorber. Experimental results verify that gold metasurface can be implemented for constructing mode-locked lasers at 1 µm region for the first time.
Widely Tunable Femtosecond Sources with Continuously Tailorable Bandwidth Enabled by Self-Phase Modulation
Authors: Chou Lu-Ting , Chia Shih-Hsuan
Published: September 2022

By varying the initial pulse conditions and investigating the spectro-temporal behavior of self-phase-modulation-dominated spectral broadening, we experimentally demonstrated a femtosecond source featuring tailorable spectral peak and bandwidth, paving a way for bandwidth-tunable nonlinear spectroscopy.
A high-efficiency 240 W-level thin-rod Yb:YAG amplifier with dual-wavelength pumping method
Authors: Wang Shang , Liu Zhaojun , Cong Zhenhua , Zhang Xingyu , Zhao Zhigang
Published: September 2022

A high-efficiency 240 W-level ultrashort pulse laser amplifier based on thin-rod Yb:YAG was obtained by adopting a dual-wavelength (940 nm and 969 nm) pumping method, along with a power extraction efficiency of ~51%.
Sub-ps High-Energy Seeding for Power Broadening and Rabi-Flopping of Terawatt CO2 Amplifiers
Authors: Yang Ya-Po , Lee Jheng-Yu , Wang Jyhpyng
Published: September 2022

We present a new approach to high-energy seeding of CO2 laser amplifiers based on mixing of 1338-nm and 1540-nm pulses that suppresses pulse splitting and shortens the main pulse by power broadening and Rabi-flopping.
Consequences of Introducing Non-Differentiable Angular Dispersion into a Pulsed Optical Field
Authors: Hall Layton A. , Abouraddy Ayman F.
Published: September 2022

We verify experimentally that newly identified non-differentiable angular dispersion enables independent control over the group velocity and the sign and magnitude of all dispersion orders along the propagation direction of a pulsed field.
Inverse Design of Nanophotonics Structures with Minimal Computation Using a Pruning Approach
Authors: Javani Mohammad H , Zandehshahvar Mohammadreza , Zhu Muliang , Brown Tyler , Kiarashi Yashar , Adibi Ali
Published: September 2022

We present a new approach based on pruning neural networks for solving inverse design in nanophotonics and show how this approach can be used to solve inverse problem with minimal complexity without imposing significant error.
Diamond nanobeam designs with high cooperativity
Authors: Moraes Flávio C. D. , de Melo Emerson G. , de Aguiar Gabriel H. M. , Wiederhecker Gustavo S. , Mayer Alegre Thiago P.
Published: September 2022

In this work, we developed a method for design optimization to maximize the cooperativity of a diamond-based nanobeam. Our optimized cavity is sideband-resolved and can reach the high-cooperativity regime with only 40 intracavity photons.
Topological Edge States at Singular Points in Non-Hermitian Plasmonic Waveguide-Cavity Systems
Authors: Huang Yin , Shen Yuecheng , Veronis Georgios
Published: September 2022

We show that non-Hermitian plasmonic waveguide-cavity systems can simultaneously exhibit both topological edge states and singular points. We also show that the sensitivity of the reflected light intensity is greatly enhanced at such singular points.
Design Optimization of a High-Speed Modified Uni-traveling-Carrier Photodiode
Authors: Xiong Wanshu , Guo Qianwen , Yao Ruoyun , Ji Chen
Published: September 2022

We optimized an InGaAs/InP Modified Uni-Traveling-Carrier Photodiodes (MUTC-PDs) design with operation frequency above 200 GHz and responsivity greater than 0.14 A/W. Key device design parameters tradeoffs are systematically analyzed in depth.
Fiber Grating sensor based in curvature sensing for monitoring bidirectional displacements
Authors: Velázquez-Carreón Fernando , Sandoval-Romero G. E. , Pérez-Alonzo Abraham
Published: September 2022

A Bragg grating sensor prototype for Structural Monitoring is presented for the measurement of bidirectional displacements (±50 mm) with a single grating, based on curvature sensing with a sensitivity up to 40 pm/mm.