bluuebunny/crossref_metadata_2025 huggingface dataset:
Cavity-enhanced photon-phonon coupling using a quantum emitter and surface acoustic waves
Authors: Imany Poolad , Wang Zixuan , Boutelle Robert C. , McDonald Corey A. , Autry Travis , DeCrescent Ryan A. , Berweger Samuel , Kabos Pavel , Mirin Richard P. , Silverman Kevin L.
Published: January 2022

We demonstrate modulation of scattered light from a quantum dot embedded in a surface acoustic wave cavity, and show coupling of red-detuned photons and the quantum dot mediated by phonons.
Bernstein-Greene-Kruskal States in Nonlinear Optics
Authors: Sun Xiaohang , Wang Yaotian , Fleischer Jason W.
Published: January 2022

We introduce and experimentally demonstrate photonic Bernstein-Greene- Kruskal states using statistical light in a nonlinear crystal. The results reveal coherence dynamics in phase space that cannot be observed in position or momentum space alone.
A Specialty Multicore Optical Fiber Using Aubry-Andre- Harper Model Based Localization Phase Transition
Authors: Dey Suman , Mishra Madhusudan , Biswas Piyali , Das Nikhil Ranjan , Ghosh Somnath
Published: January 2022

We present a quasi-periodically modulated coupled multicore fiber based on Aubry-Andre- Harper model to exhibit a sharp localization phase transition that is explicitly dependent on modulation strength and core arrangement radius of the geometry.
Formation of multiple bubbles and their interactions during pulsed laser ablation of a solid immersed in liquid
Authors: Mehta Kavil , Patel Kaushik G. , Sharma Ashwini K. , Khare Alika , Baruah Prahlad K.
Published: January 2022

Investigation of tight focusing of a pulsed laser onto a solid target submerged in distilled water is undertaken in the present study. The study uncovers the formation of multiple bubbles in liquid and its interaction.
Experimental Generation of Dispersion Curve of Photonic Crystal Cavity using two Laser Sources
Authors: Sharma Naresh , Kumar Govind , Gupta Shilpi
Published: January 2022

We demonstrate a technique to generate dispersion curve of a one-dimensional photonic crystal cavity, which relates the cavity resonance wavelength to resonance angle by measuring transmitted annular beams for two known laser wavelengths.
3D Depth Camera Based Face Mask Recognition Using Spatial and Frequency Features
Authors: Wang Xiaoyan , Xu Tianxu , Sun Lei , Wang Qiang , Pan Zhongqi , Yue Yang
Published: January 2022

A novel method for face mask recognition is demonstrated using spatial and frequency features from the captured 3D information by depth camera. Mask types can be further classified, and the average recognition accuracy is 82.11%.
Understanding the Photothermal Response of CBNP Nanofluids Using Thermal Lens Spectroscopic Techniques
Authors: Chakraborty Subhajit , Mishra Amit Kumar , Rawat Ashwini Kumar , Goswami Debabrata
Published: January 2022

We performed a dual beam Z-Scan experiment to examine the thermal lensing effects in CBNP nanofluids. The photothermal characteristics and heat dissipation dynamics were observed for these nanofluids at different levels of their linear absorption.
Cryogenic optical transitions of T centers in bulk Silicon and Silicon-on-insulator for cavi ty quantum electrodynamics
Authors: Huang Jiahui , Sarihan Murat Can , Kang Jin Ho , Liang Baolai , Liu Wei , Wong Chee Wei
Published: January 2022

We examine the 1325 nm T center transitions and an unknown color center with 1312 nm transitions in ion-implanted bulk Silicon and Silicon-on-insulator. We aim to use it for strong coupling via photonic crystal cavities.
Dark dissipative soliton resonance in a mode-locked double- clad Er/Yb fiber laser
Authors: Durán-Sánchez M. , Álvarez-Tamayo R. I. , Bello-Jiménez M. , Ibarra-Escamilla B.
Published: January 2022

We experimentally demonstrate the formation of dark rectangular pulses from an EYDCF laser operating in a large net-anomalous cavity dispersion regime. The dynamics of dark rectangular formation and the spectral evolution with pump power are experimentally investigated.
Temporal coupled-mode theory for the line shape of the optical force spectrum
Authors: Fan Lingling , Zhao Zhexin , Rituraj  , Jin Weiliang , Orenstein Meir , Fan Shanhui
Published: January 2022

We theoretically investigate the general optical force line shape as determined by resonances, based on temporal coupled-mode theory analysis. As an application of the theory, we discuss a novel particle sorting scheme.
Motion-insensitive Lossy-mode-resonances Optical Fiber Sensor for Relative Humidity and Moisture Contents
Authors: Li Mucheng , Damon Mackenzie , Liu Yuxiang
Published: January 2022

A moisture sensor was developed based on lossy-mode resonances and polarization- maintaining optical fibers. Thanks to the motion insensitivity, the sensor has a high potential for humidity and moisture contents measurements in various industrial applications.
Ultrafast optically-induced melting of trimer clusters in 1T’-TaTe2
Authors: Siddiqui K. M. , Durham D. B. , Cropp F. , Rajpurohit S. , Ophus C. , Zhu Y. , Carlström J. D. , Stavrakas C. , Mao Z. , Raja A. , Musumeci P. , Tan L. Z. , Minor A. M. , Filippetto D. , Kaindl R. A.
Published: January 2022

Relativistic ultrafast electron diffraction is used to track the transient structural dynamics of tantalum ditelluride. We observe rapid photo-induced melting of its low-temperature trimer superstructure as driven by intra-trimer charge transfer.
FPGA control module for Quantitative Differential Phase Contrast Microscope
Authors: Yu Yen-Chih , Yeh J. Andrew , Luo Yuan
Published: January 2022

An FPGA module has been developed to control a quantitative differential phase contrast microscope, which can perform three functions: asymmetric-illumination to obtain intensity images, high-speed image acquisitions and phase image reconstruction.
Erbium Doped Tapered Fiber for Generation of MW Level Peak Power Femtosecond Pulses at 1530 nm Wavelength
Authors: Kumar Aashish , Rehan Mohd , Rastogi Vipul
Published: January 2022

We present the design of an erbium-doped very large-mode-area tapered optical fiber for generation of 4.2 MW peak-power, 7 fs duration laser pulses at 1530 nm wavelength. The study would be useful for ultrafast laser processes.
Evaluation of light penetration for photoacoustic macroscale imaging in rat organs
Authors: Guo Heng , Sun Aihui , Xi Lei
Published: January 2022

The study evaluated the penetration capability of light for photoacoustic macroscale imaging inside different organs with three typical penetration depths, and proposed the optimal selection of illumination wavelengths to achieve the best signal-to-noise ratio.
Photodamage Reduction on Harmonic Generation Microscopy at Low-Level Optical Power based on Deep Learning
Authors: Shen Yi-Jiun , Liao En-Yu , Tai Tsung-Ming , Liao Yi-Hua , Sun Chi-Kuang , Lee Cheng-Kuang , See Simon , Chen Hung-Wen
Published: January 2022

We demonstrated a power enhancement method in harmonic generation microscopy based on deep learning to reduce the optical input power and consequently reduce the risk of photodamage.
MIM Plasmonic Waveguide for Absorption Spectroscopy
Authors: Mishra Manoj , Singh Brajraj , Sharma Mohit
Published: January 2022

A compact plasmonic waveguide proposed and investigated. It shows high response with near 90% absorption. First time, three absorption peaks are reported in the near infrared regime wavelength range with air cavity.
Broadside coupled graphene metamaterial cavities for ultrasensitive terahertz sensing
Authors: Kaur Sukhvinder , Karmakar Subhajit , Varshney Ravendra K. , Chowdhury Dibakar Roy
Published: January 2022

We demonstrate broadside coupling of “plus” shaped graphene resonators-based THz metamaterials. Due to relatively large interaction area leading to strong THz-matter interaction, our devices show high refractive index sensitivity of ~4.5 THz/RIU.
Sensitivity Enhancement of a bi-metallic Surface Plasmon Resonance based Sensor Using Poynting vector Analysis
Authors: Kushwah Himanshu , Anand Jagneet Kaur
Published: January 2022

Bi-metallic surface plasmon resonance sensor with a thin layer of high-index dielectric introduced between two metal layers to enhance sensitivity is proposed. Design parameters are calculated using a new formula for instantaneous Poynting vector.
Angle dependent optical performance of light trapping metallic electrodes
Authors: Sun Mengdi , Kik Pieter G.
Published: January 2022

The angle dependent optical performance of triangular light-trapping metallic electrodes was investigated. It is found that higher cover layer index enables improved light trapping at all incident angles. Up to 85% shadowing loss reduction is achieved over a large angular range of 120° at a cover layer index of 4 at an incident wavelength of 600 nm.
Transmission spectra and power of single and double Tilted Fiber Bragg Grating configurations under pull-induced strain
Authors: Acuna-Herrera Rodrigo , Arango Juan J. , Esquivia Pedro J. , Montoya Jose P. , Pinzon Jonathan D. , Ramirez Donovan , Torres Pedro I. , Vergara-Palacio Sebastián
Published: January 2022

We report the spectral behavior of a single Tilted Fiber Bragg Grating (TFBG) at 5 degrees under pull-induced strain and compared it to a setup of two cascaded TFBGs, with one tensioned. Modal overlapping is observed and measured.
Absorption Reduction of Large Purcell Enhancement Enabled by Topological State-Led Mode Coupling
Authors: Qian Zhiyuan , Li Zhichao , Hao He , Shan Lingxiao , Zhang Qi , Dong Jiawen , Gong Qihuang , Gu Ying
Published: January 2022

Based on edge state-led mode coupling mechanism, absorption reduction of spontaneous emission spectra appears in topological structure containing nanoantenna, pro- viding Purcell enhancement over 104γ0 with all scattering light guided into edge state.
Plasma Temperature Evolution with Varying Compositions in an Alloy Using Laser Induced Breakdown Spectroscopy
Authors: Narlagiri Linga Murthy , Soma Venugopal Rao
Published: January 2022

Time-resolved, nanosecond laser induced breakdown spectra were collected from Au-Ag bimetallic target of different compositions. The corresponding spectral data was used for Boltzmann plots providing information on evolution of plasma temperature as function of composition.
Experimental Observation of Self-Focusing in Ferrofluid-Based Hyperbolic Metamaterials
Authors: Smolyaninova V. N. , Cartelli J. , Augstein B. , Spickard S. , Devadas M. S. , Smolyaninov I. I.
Published: January 2022

We report experimental observation of the self-focusing effect in ferrofluid-based self- assembled hyperbolic metamaterials, which is predicted to exhibit gravity-like nonlinear optical interactions.
3.4 GHz passively harmonic mode locking in a nonlinearity managed Er-doped fiber laser with carbon nanotubes film
Authors: Huang Qianqian , Dai Lilong , Rozhin Aleksey , Araimi Mohammed Al , Mou Chengbo
Published: January 2022

We demonstrate a nonlinearity managed passively harmonic mode-locked Er-doped fiber laser using carbon nanotubes film. Lowering the pulse energy via careful nonlinearity management results in 3.4GHz pulse generation with only 250mW pump power.
Raman Sideband Cooling 171Yb+ Across Zeeman Sub-levels
Authors: Scarabel Jordan , Shimizu Kenji , Ghadimi Moji , Lobino Mirko , Streed Erik
Published: January 2022

We implemented Raman sideband cooling in 171Yb+ between weakly split Zee- man states rather than across the typical 12.6 GHz hyperfine splitting and infer sub-Doppler cooling from

n
¯

x
,
y
,
z

=
[
29
(
2
)
,
36
(
16
)
,
16.2
(
5
)
]

to [0:07(7), 2:0(1:2), 5:6(2)].
3D Human Joints Extraction Using Part Segmentation
Authors: Xu Tianxu , An Dong , Jia Yuetong , Chen Jiaqing , Zhong Hongkun , Ji Yishen , Wang Yushi , Wang Zhonghan , Wang Qiang , Pan Zhongqi , Yue Yang
Published: January 2022

We propose an approach of human joints extraction using part segmentation. Six human segmentations obtained by PointNet++ are further utilized to extract the 3D joints. The average error of 14 joints is < 4.2 cm.
Quantitative Differential Phase Contrast Imaging Assisted with U-net++ Model
Authors: Chen Ying-Ju , Luo Yuan
Published: January 2022

Using asymmetric color gradient illumination, an isotropic differential phase contrast microscopy technique for thin transparent samples is proposed. To further improve imaging performance, U-net++ is adapted to obtain quantitative phase information.
An investigation on the vision of diagnostic X-rays by the human eye under head CT-scan
Authors: Fathi Mohammad Bagher
Published: January 2022

We employ brain CT-scan to show that the human eye can be capable to see the portions outside the well-known visible area, especially X-rays. Its color relies within the blue area.
Propagation Characteristics of Optical Beam in a Diffraction Managed Highly Nonlocal Media
Authors: Sharma Mohit , Kajala Sandeep Kumar , Singh Brajraj , Mishra Manoj
Published: January 2022

This article discusses the dynamics of optical beam propagation through diffraction managed highly nonlocal nonlinear media. The dynamical system has been modeled by modified nonlinear Schrödinger equation (MNLSE) and the MNLSE has been investigated by the variational method.
Nesting and Degeneracy of Mie Resonances of Dielectric Cavities embedded in Zero-Index Materials
Authors: Ma Yun , Duan Xueke , Chen Haoxiang , Qian Zhiyuan , Zhang Qi , Lai Yun , Peng Ruwen , Gong Qihuang , Gu Ying
Published: January 2022

Using analytical methods and numerical simulations, we discovered the novel nesting and degeneracy of Mie resonances of dielectric cavities within zero-index materials.
Investigation on ring resonator based plasmonic optical filter
Authors: Sharma Mohit , Mehtani Somya , Singh Brajraj , Mishra Manoj
Published: January 2022

This article investigates a plasmonic ring resonator-based optical filter numerically, to find the impact of the radius of ring resonator and width of the channel on transmission characteristics.
Estimation and Correction of Gaussian Random Displacement Error Using Simple Non-Gaussian States
Authors: Hanamura Fumiya , Asavanant Warit , Fukui Kosuke , Konno Shunya , Furusawa Akira
Published: January 2022

We analyse estimation and error correction of Gaussian random displacement using experimentally feasible non-Gaussian states. We show that even simple states such as single-photon state is superior to Gaussian states in both settings.
Diffraction of Laguerre-Gauss Vortex Beams from Cantor Set and Sierpenski Carpet
Authors: Nomoto Sean , Vyas Reeta , Singh Surendra
Published: January 2022

Far-field diffraction of LG vortex beams from 2-D Cantor Set and Sierpinski Carpet is studied and its dependence on iteration order, topological charge, and aperture size and location relative to the beam-waist is investigated.
Measurement of Refractive index and Absorption coefficient of 3, 4, 5 -Trinitro 1-H Pyrazole using Terahertz Time-domain Spectroscopy
Authors: Koalla Rajesh , Ghorui Chandan , Mangali Shivanand , Periketi Naveen , Chaudhary A.K.
Published: January 2022

The paper reports the terahertz time-domain spectroscopy of 3, 4, 5 -Trinitro 1-H Pyrazole (explosive) between 0.1-1.5 THz range. We ascertained the values of refractive index and absorption coefficients in solid powder form.
Suppression of the Transfer Efficiency for a Noisy Path-Entangled Single Photon in the LH1-RC Unit
Authors: Wyke Ethan , Aiyejina Abuenameh , Andrews Roger
Published: January 2022

The transfer efficiency of the LH1-RC is determined for an incident path- entangled photon with dephasing noise. We have found transfer efficiency suppression due to dephasing noise and the phase difference between the entangled photon states.
Simultaneous dual-scale subwavelength gratings formation over a broad wavelength range
Authors: Taher Md Abu , Rao D Narayana , Gopal N Sri Ram
Published: January 2022

Dual-scale laser induced nanogratings on stainless steel surface of periodicity 45-100 nm (for secondary ripples), and 230-800 nm (primary ripples) are fabricated via femtosecond laser micromachining with a broad incident wavelength from 400-2200 nm.
Realization of Switchable Half-Wave Plate for Superposition of Orbital Angular Momentum Modes
Authors: Srinivasu S. , Wanare H.
Published: January 2022

We propose an electro-optic angular phase grating using angularly polled LiNbO3 (APLN) to manipulate the superposition of Orbital Angular Momentum (OAM) states of light. This versatile device can act as an HWP for OAM modes of opposite chirality.
Filter-free, Telecom-band, Heralded Single Photons from SOI Waveguides
Authors: Sharma Shivani , Venkataraman Vivek , Ghosh Joyee
Published: January 2022

We present SOI waveguide designs capable of generating filter-free single photons with high spectral purity (> 98%) at telecom wavelengths via discrete-band phase- matched SFWM. The proposed designs could prove useful for large-scale integrated LOQC networks and long-distance fiber-based QKD.
Femtosecond Excited State Dynamics of Phenanthroimidazole Derivative Molecules Through Excited State Intramolecular Proton Transfer
Authors: Biswas Chinmoy , Devarajan Kathirvelan , Dey Pritha , Panda Tarun K , Krishnan Sivarama , Raavi Sai Santosh Kumar
Published: January 2022

Dual emission induced by addition of distilled water in pure solution in a novel phenanthroimidazole derivative molecule was observed. Transient absorption measurements elucidated excited state proton transfer as the primary photo-process resulting in the observed emission.
Enhanced broadband emission of co-doped (Nd-Er)TiO2
Authors: Katta Venkata Seshaiah , Biswas Chinmoy , Raavi Sai Santosh Kumar
Published: January 2022

Enhancement NIR emission from co-doped (Er-Nd)TiO2 samples is investigated. Analysis revealed interesting bi-direction energy transfer from both Rare-Earth (RE) sites, the interplay of which results in enhanced NIR emission.
Large Pulse Delay in Acousto-Optic Crystals
Authors: Petrov Nikolai I. , Pustovoit Vladislav I.
Published: January 2022

The diffraction of a pulse in a resonator formed by two spatially distributed “mirrors” created by an acoustic wave is considered. A significant increase in the pulse delay in acousto-optic crystals near the Bragg resonance is shown.
Design of Micro-Lens Arrays for Display Illumination
Authors: Petrova Galina N. , Petrov Nikolai I.
Published: January 2022

Wave-optics and ray-field tracing methods for simulation of micro-lens arrays taking into account the coherence and polarization effects of light source are implemented. The ray-field approach based on the coherent states representation is developed.
Chaotic Lidar Sensing Performance Analysis Based on Laser Diode with Optical Feedback
Authors: Nie Bairun , Chen Zhuqiu , Ruan Yuxi , Yu Yanguang , Guo Qinghua , Xi Jiangtao , Tong Jun
Published: January 2022

Based on a laser diode with optical feedback, the influence of system controllable parameters on chaotic lidar sensing performance is analyzed. Then, guidance on parameter selection rule for generating high-quality chaotic signals is provided.
Soliton Switching in P T -symmetric Directional Coupler with Saturable Cubic Nonlinear Response
Authors: Chaudhary Priyanka , Mishra Akhilesh Kumar
Published: January 2022

We present a numerical study on the effect of

P
T

-symmetry in switching characteristics of soliton pulse in the directional coupler with saturable cubic nonlinear response.
One-dimensional space-time vector light sheet
Authors: Diouf Mbaye , Harling Mitchell , Yessenov Murat , Hall Layton A. , Abouraddy Ayman , Toussaint Kimani C.
Published: January 2022

We experimentally demonstrate classically, double entangled, space-time vector beams. These beams exhibit in-parallel correlation between two degrees of freedom, namely, spatial- temporal frequency and polarization-space.
Femtosecond laser post-processing mechanisms for refractive index tuning of fiber Bragg gratings
Authors: Imogore Timothy O. , Goebel Thorsten A. , Krämer Ria G. , Matzdorf Christian , Richter Daniel , Nolte Stefan
Published: January 2022

We present an in-depth study on the evolution of the average refractive index profile of an inscribed fiber Bragg grating with respect to the femtosecond laser post-processing parameters. Herein, its influence on the spectral properties of the FBG is discussed.
Comprehensive study and performance analysis of an eco-friendly double perovskite Cs2AgBiBr6 on Si tandem solar cell
Authors: Kumari Dolly , Pandey Saurabh Kumar
Published: January 2022

With the advent of perovskites on Si technology for a tandem configuration of solar cells, it has become obligatory to take care of the toxicity content present, and proper care should be given for a stable design. Aiming at this, the present paper discusses a comprehensive analysis of lead-free all-inorganic double perovskite/c-Si tandem solar cells. The combination of double perovskite (

C

s

2

A
g
B
i
B

r

6

) as a wider bandgap (2.05 eV) layer and (c-Si) as a lower bandgap (1.12 eV) layer is used for the first time, to our knowledge, and this proposed structure shows optimum device efficiency of 26.38%. Designing the tandem cell is carried out in two steps. First the top cell (

C

s

2

A
g
B
i
B

r

6

) and bottom cell (c-Si) are calibrated according to the data reported so far. Simulation results reflect power conversion efficiency (PCE) values for

C

s

2

A
g
B
i
B

r

6

and c-Si cells under an AM 1.5 spectrum to be 8.26% and 22.37%, respectively. After optimizing the performance for top and bottom cells, we evaluated the same for the tandem structure. The current matching condition for the tandem structure is obtained at 0.400 µm and 1 µm thicknesses of the absorber layer for top and bottom cells, respectively. Top and bottom cells with filtered spectra exhibit efficiencies of 8.15% and 18.23%, respectively. Overall, the

C

s

2

A
g
B
i
B

r

6

/

c

-

S
i

tandem configuration yields an impressive PCE of 26.38% with an open circuit voltage of 1.84 V.
Ultrafast broadband tuning of InAs THz plasmonic arrays
Authors: Zhang Jingdi , Zhao Xiaoguang , Haque Rubaiat Ul , Deng Fu , Chen Chunxu , Zhang Yuan , March S. D. , Maddox S. J. , Bank Seth R. , Zhang Xin , Averitt Richard D.
Published: January 2022

Patterned high mobility semiconductors enable tunable plasmonic devices at terahertz frequencies. We investigate broadband tuning of localized surface plasmon polaritons in InAs arrays from 1 – 8 THz using mid-IR pump-terahertz probe spectroscopy.
Optically tunable broadband terahertz dielectric membrane metasurface absorber
Authors: Huang Yuwei , Kaj Kelson , Chen Chunxu , Zhao Xiaoguang , Haque Sheikh Rubaiat Ul , Zhang Yuan , Averitt Richard D. , Zhang Xin
Published: January 2022

We utilize a periodic lattice of elliptical holes in a thin silicon membrane to demonstrate an optically tunable broadband terahertz metasurface absorber with a bandwidth of ~500 GHz that achieves >90% absorption.
Applications of intense mid-infrared laser-matter interactions
Authors: Woodbury D. , Schwartz R. M. , Milchberg H. M.
Published: January 2022

We present experiments and simulations of high energy mid-infrared laser-matter applications, including near-critical density laser wakefield acceleration, detection of ultralow electron densities from radiation or strong-field ionization, and novel mechanisms for nonlinear infrared self-guiding.
Lattice Atom Interferometry in an Optical Cavity
Authors: Xu Victoria
Published: January 2022

We present an intra-cavity trapped atom interferometer with an unprecedented 20-second coherence time, and discuss how this approach suppresses vibration noise while increasing sensitivity in a compact volume, overcoming the major limitations in quantum gravimetry.
Randomized tomography of on-chip biphoton frequency combs
Authors: Myilswamy Karthik V. , Lu Hsuan-Hao , Seshadri Suparna , Alshaykh Mohammed S. , Liu Junqiu , Leaird Daniel E. , Kippenberg Tobias J. , Weiner Andrew M. , Lukens Joseph M.
Published: January 2022

We perform full state tomography of frequency-bin entangled qudits generated from a Si3N4 microring, up to record-high frequency-bin dimension of d = 8. Our method combines randomized electro-optic modulation and pulse shaping with Bayesian inference.
Ultra-compact Integrated Photonic Devices Enabled by Digital Metamaterials
Authors: Jia Wei , Banerji Sourangsu , Majumder Apratim , Hamrick Alex , Menon Rajesh , Sensale-Rodriguez Berardi
Published: January 2022

We discuss recent progress on the design of passive integrated photonic devices and phase-change material based active devices enabled by digital metamaterials. This is a promising approach offering advantages in terms of efficiency and footprint.
Terahertz Driven Opacity-Transparency Transition in Photoexcited Carbon Nanotubes
Authors: Lee Byounghwak , Mousavian Ali , Bradley Alden , Lee Yun-Shik
Published: January 2022

CNTs exhibit extraordinary nonlinear THz responses upon optical excitation. Its conductivity reduces at intermediate intensities, while soaring elsewhere. Field-effect mobility and carrier multiplications govern the rise and fall of the conductivity.
Unpacking Nonlinear Vibrational Excitations in CdWO4
Authors: Nielson Megan F. , Knighton Brittany E. , Davis Lauren M. , Alejandro Aldair , Nelson Emma , Johnson Jeremy A.
Published: January 2022

Using 2D THz spectroscopy, we explore nonlinear energy transfer in CdWO4. Fitting power dependent THz measurements with a complex model allows us to determine nonlinear photonic and phononic parameters, and we compare with first-principles calculations.
Terahertz pulse-induced melting of charge density wave through the coherent excitation of amplitude mode in 3R-Ta1+xSe2
Authors: Yoshikawa Naotaka , Narusaka Ushio , Nishizawa Kunio , Matsuoka Hideki , Tanaka Yuki , Nakano Masaki , Iwasa Yoshihiro , Shimano Ryo
Published: January 2022

We investigated the nonlinear dynamics of the amplitude mode of the charge density wave in 3R-Ta1+xSe2. Intense terahertz pulse excites the amplitude mode with the an harmonic coupling regime and suppresses the charge density wave order.
Excitation Dynamics and Dielectric Resonance Energy Transfer in Cu2O Nanocubes
Authors: Gyawali Sunil , Sooriyagoda Rishmali , Wheeler Aaron , Tirumala Ravi Teja A. , Ramakrishnan Sundaram Bhardwaj , Mohammadparast Farshid , Tan Susheng , Kalkan A. Kaan , Andiappan Marimuthu , Bristow Alan D.
Published: January 2022

Transient absorption captures dynamics of nanocubes, showing negative delay-time signals associated with perturbed free induction. This validates dielectric-resonance energy transfer between electromagnetic modes for light-harvesting applications.
Genuine High-Dimensional Quantum Steering
Authors: Srivastav Vatshal , Valencia Natalia Herrera , McCutcheon Will , Designolle Sébastien , Uola Roope , Brunner Nicolas , Malik Mehul
Published: January 2022

We theoretically formalise and experimentally demonstrate a notion of genuine high- dimensional quantum nonlocal steering. We demonstrate steering with a record local dimension of 15 in a 31-dimensional space.
Mechanosynthesis strategy towards a high-efficiency CsPbBr3/Cs4PbBr6 perovskite phosphor
Authors: Qian Doudou , Hu Tiangui , Gao Jingyi , Du Haihong , Wu Li , Kong Yongfa , Zhang Yi , Xu Jingjun
Published: January 2022

All-inorganic perovskites are promising alternatives to
organic-inorganic hybrid halide perovskites in the field of
optoelectronic materials. Optimizing the luminescent property of
CsPbBr3 is very important to promote its application in
optoelectronic devices, and thus a facilitative method to prepare a
large number of efficient luminous samples is desirable. In this
study, we effectively improve the luminous performance of
CsPbBr3 powder by a simple mechanosynthesis strategy. The
emission intensity of CsPbBr3 powder is improved by ca. 40
times and the PLQY of the powder sample exceeds 40%. It is
disclosed that the defects of CsPbBr3 are passivated and
the ratio of the non-radiation recombination is reduced. The formed
Cs4PbBr6 during grinding has a zero-dimensional
perovskite structure that can limit the migration of the carriers
between the [PbBr6] octahedrons. Now CsPbBr3 can
be used in powder form other than film or quantum dots. A UV-chip LED
is fabricated by using the prepared phosphor, and the narrow-band
emission property (FWHM is 22 nm) makes it more suitable for
application in back-lighting systems.
Non-redundant optical phased array: erratum
Authors: Fukui Taichiro , Tanomura Ryota , Komatsu Kento , Yamashita Daiji , Takahashi Shun , Nakano Yoshiaki , Tanemura Takuo
Published: January 2022

This erratum corrects the error in Fig. 5 of our earlier paper
[Optica
8, 1350 (2021)OPTIC82334-253610.1364/OPTICA.437453].
Quantum-Optimal Object Classification in Sub-Diffraction Incoherent Imaging
Authors: Grace Michael R. , Guha Saikat
Published: January 2022

We derive quantum limits and optimal measurements for arbitrary hypothesis tests between incoherent, diffraction-limited objects, enabling discrimination of an order of magnitude more objects than direct imaging.
Cooling a nanomechanical membrane resonator from room temperature close to the quantum ground state
Authors: Kralj Nenad , Saarinen Sampo A. , Langman Eric , Tsaturyan Yeghishe , Schliesser Albert
Published: January 2022

We use a new optomechanical platform, exhibiting high quantum cooperativity and low mirror noise, to cool a mode of a soft-clamped membrane resonator to below 20 phonons at room temperature, via measurement and feedback.
Approaching the motional ground state of a 10 kg object
Authors: Whittle Chris , Hall Evan D. , Dwyer Sheila , Mavalvala Nergis , Sudhir Vivishek , LIGO Detector Group
Published: January 2022

Thermal decoherence impedes preparing massive objects in quantum states. Using feedback cooling, we place the center-of-mass motion of a 10 kg oscillator in a state with phonon occupation 10.8, bringing it from room temperature to 77 nK.
Large-scale reconfigurable continuously-coupled integrated optical circuits for photonic quantum information processing
Authors: Hoch Francesco , Piacentini Simone , Giordani’ Taira , Tian Zhen-Nan , Iuliano Mariagrazia , Esposito Chiara , Camillini Anita , Carvacho Gonzalo , Ceccarelli Francesco , Spagnolo Nicolò , Crespi Andrea , Sciarrino Fabio , Osellame Roberto
Published: January 2022

Quantum photonic platforms are emerging as the most promising to prove a computational advantage. Here we present a novel reconfigurable integrated interferometer for large-scale implementation of Boson Sampling based on the continuous coupling of waveguides.
Quantifying n-photon Indistinguishability with an Integrated Multi-Port Interferometer
Authors: Thomas Sarah , Pont Mathias , Albiero Riccardo , Spagnolo Nicolò , Ceccarelli Francesco , Corrielli Giacomo , Brieussel Alexandre , Somaschi Niccolo , Belabas Nadia , Huet Hêlio , Harouri Abdelmounaim , Lemaître Aristide , Sagnes Isabelle , Sciarrino Fabio , Osellame Roberto , Senellart Pascale , Crespi Andrea
Published: January 2022

We introduce a novel method to directly characterize the indistinguishability of a state of multiple photons using a multiport interferometer. We demonstrate this method using four photons from a quantum dot single-photon source.
Experimental enhancement of non-classical bosonic correlations via disordered Quantum Walk
Authors: Laneve Alessandro , Nosrati Farzam , Geraldi Andrea , Mahdavipour Kobra , Pegoraro Federico , Shadfar Mahshid Khazaei , Franco Rosario Lo , Mataloni Paolo
Published: January 2022

We experimentally implemented a controllable inhomogenous Quantum Walk evolution of two photon states. Through the imposition of suitable disorder configurations, we observed an enhance-ment in quantum correlations of the system, compared to the ordered case.
Simulating complex networks in phase space: Gaussian boson sampling
Authors: Drummond Peter D. , Opanchuk Bogdan , Dellios A. , Reid Margaret D.
Published: January 2022

We show how phase-space simulations of Gaussian quantum states in a photonic network permit verification of measurable correlations of Gaussian boson sampling (GBS) quantum computers. Our results agree with experiments for up to 100-th order correlations, provided decoherence is included. We extend this to more than 16,000 modes, and describe how to simulate genuine multipartite entanglement.
Hour-long Decay-time of Erbium Spins in an Optical Fiber at Milli-Kelvin Temperatures
Authors: Shafiei Sara , Saglamyurek Erhan , Oblak Daniel
Published: January 2022

We report the increase of electronic spin lifetimes of Erbium ions in an optical glass fiber from minute to hour time-scale when cooled from sub-kelvin to millikelvin temperatures, due to the inhibition of amorphous-specific interactions.
Realization of a Multi-Node Quantum Network of Remote Solid-State Qubits
Authors: Baier Simon , Pompili Matteo , Hermans Sophie L.N. , Beukers Hans K.C. , Humphreys Peter C. , Schouten Raymond N. , Vermeulen Raymond F.L. , Tiggelman Marijn J. , Martins Laura dos Santos , Dirkse Bas , Wehner Stephanie , Hanson Ronald
Published: January 2022

Entanglement-based quantum networks will provide exciting opportunities for science and engineering. Here, we report the realization of a three-node quantum network by generating distributed multi-partite entangled states and performing entanglement swapping through an intermediary node.
Propagation-induced spatial entanglement revival
Authors: Bhattacharjee Abhinandan , Joshi Mritunjay K , Karan Suman , Leach Jonathan , Jha Anand K
Published: January 2022

We report the revival of angle-OAM entanglement through propagation. We find that the entanglement decays within a short distance. However, a further propagation induces revival in entanglement, and this feature remains intact in turbulence.
Ultimate accuracy limit of quantum pulse-compression ranging
Authors: Zhuang Quntao , Shapiro Jeffrey H.
Published: January 2022

We establish microwave-radar ranging's ultimate quantum limit, and show that quantum illumination (QI) ranging achieves this limit. Moreover, QI's ranging accuracy can be 10's of dB better than that of its best classical competitor.
Optimal Quantum Ranging — Hypothesis Testing for an Unknown Return Signal
Authors: Cohen L. , Wilde M. M.
Published: January 2022

We use quantum hypothesis testing for unknown coherent-state return signals, deriving the error-probability limits of single-shot ranging experiments. We engineer optimal measurements, independent of the range, contributing to better rangefinders and LIDARS.
Deep cryogenic operation of 55 nm CMOS SPADs for quantum information and metrology applications
Authors: Morelle A. , Gramuglia F. , Keshavarzian P. , Bruschini C. , Chong D. , Tan J. , Tng M. , Quek E. , Charbon E.
Published: January 2022

We demonstrate the operation and study the performance metrics of advanced CMOS single-photon avalanche diodes from 293K down to 3K. This shows their potential for close integration with quantum devices operating at cryogenic temperatures.
Efficient telecom-band quantum frequency conversion
Authors: Cohen Mathis , Dalidet Romain , Pastier Florian , Giesz Valérian , Somaschi Niccolo , Senellart Pascale , Thomas Sarah , Martin Anthony , Tanzilli Sébastien , Labonté Laurent
Published: January 2022

We achieve a frequency conversion interface to coherently transmit light from a weak coherent source at 925 nm toward telecommunication C-band. We demonstrate coherence preservation and an internal conversion of 62 % efficiency.
Optical Power Limiters for Securing Practical Quantum Communication Systems
Authors: Zhang Gong , Primaatmaja Ignatius William , Haw Jing Yan , Gong Xiao , Wang Chao , Lim Charles Ci Wen
Published: January 2022

We propose and experimentally demonstrate a passive optical power limiter device used to protect practical quantum communication systems. The device is robust against different signal variations and has minimum impact on the quantum signals.
Experimental symmetric private information retrieval with quantum key distribution
Authors: Wang Chao , Kon Wen Yu , Ng Hong Jie , Lim Charles Ci-Wen
Published: January 2022

We report an experiment of a two-database symmetric private information retrieval protocol which incorporates a measurement-device-independent quantum key dis-tribution system. Based on the experimental system, we demonstrate information retrieval from a fingerprint database with 800 entries.
Using outcome purity to compare multiplexed detectors
Authors: Schapeler Timon , Hoöpker Jan Philipp , Bartley Tim J.
Published: January 2022

We use quantum detector tomography to compare the outcome purity of four classes of multiplexed SNSPDs. This allows a direct method of comparing the quality of different multiplexing architectures for practical applications.
Spreading of quantum information through a disordered quantum walk
Authors: Nosrati Farzam , Laneve Alessandro , Shadfar Mahshid Khazaei , Geraldi Andrea , Mahdavipour Kobra , Pegoraro Federico , Matalon Paolo , Franco Rosario Lo
Published: January 2022

We propose a quantum probing protocol, a Mach-Zehnder-like interferomet-ric setup, employing quantum walks to explore quantum information spreading patterns, such as anomalous and classical transport, as well as Anderson localization.
Activating hidden metrological usefulness
Authors: Tóth Géza , Vértesi Tamás , Horodecki Paweł , Horodecki Ryszard
Published: January 2022

We consider bipartite entangled states that cannot outperform separable states in any linear interferometer. We show that these states can be more useful metrologically than separable states if several copies of the state are provided or an ancilla is added.
Optimal quantum feedback algorithm for spin ensemble purification
Authors: Haeusler Urs , Jackson Daniel M. , Zaporski Leon , Bodey Jonathan H. , Shofer Noah , Atatüre Mete , Le Gall Claire , Gangloff Dorian A.
Published: January 2022

We present a coherent quantum feedback algorithm to purify a mesoscopic spin ensemble at the ultimate level of a single spin. Moreover our feedback can engineer classically correlated states extending over multiple modes.
Certification of incompatible measurements using quantum steering
Authors: Sarkar Shubhayan , Saha Debashis , Augusiak Remigiusz
Published: January 2022

We propose a one-sided device-independent protocol for certification of any set of d-outcome projective measurements that are “genuinely incompatible measurements” meaning that they do not share any invariant subspace including mutually unbiased bases.
Quadrupole excitation of a single atom with tightly focused structured beam
Authors: Mashhadi Leila
Published: January 2022

I analyze the quadrupole excitation of a single atom, trapped at the center of a tightly focused Laguerre Gaussian beam, considering the interplay between spin and orbital angular momenta in the focused field .
Qubit Registers for Noiseless Amplification
Authors: Bjerrum Anders J. E. , Brask Jonatan B. , Andersen Ulrik L.
Published: January 2022

We perform a theoretical investigation into how the entanglement of a two-mode squeezed state can be stored and purified using noiseless amplification with a collec-tion of solid-state qubits.
Engineering Spatial Correlations in Entangled Twin Beams
Authors: Nirala Gaurav , Pradyumna Siva T. , Kumar Ashok , Marino Alberto M.
Published: January 2022

We show full control over the spatial correlations in a macroscopic quantum state of light generated via four-wave mixing. Taking advantage of momentum conservation, we engineer the distribution of the correlations via control of the angular spectrum of the pump.
Asynchronous Quantum Ghost Imaging
Authors: Pitsch Carsten , Walter Dominik , Luzmann Peter , Bürsing Helge , Eichhorn Marc
Published: January 2022

We implemented a novel setup for quantum ghost imaging using two asynchronously running detectors. The subsequent temporal evaluation allows photon pair matching independent of the path length of the photons, thus enabling efficient 3D Imaging.
Resolution of two-color quantum imaging with undetected photons
Authors: Vega Andres , Santos Elkin , Fuenzalida Jorge , Basset Marta Gilaberte , Pertsch Thomas , Gräfe Markus , Saravi Sina , Setzpfandt Frank
Published: January 2022

We analyze the diffraction-limited resolution of quantum imaging with un-detected photons with non-degenerate photon-pairs. We find that the resolution is half of the longest of both wavelengths and is achieved using sources with sub-wavelength thicknesses.
Coupling Emission from Strained Hexagonal Boron Nitride Thin Films to Monolithic Buckled Microcavities
Authors: Scheuer K. G. , Kirwin P. S. , DeCorby R. G.
Published: January 2022

We show design and fabrication processes for a buckled microcavity compatible with emission from continuous hBN films. We also present preliminary optical results. Our results provide a scalable approach for on-chip single photon emitters.
Time-Frequency Randomized Compressive Tomography Using a Quantum Pulse Gate
Authors: Brecht Benjamin , Gil-Lopez Jano , De Syamsundar , Teo Yong Siah , Jeong Hyunseok , Sanchez-Soto Luis L. , Silberhorn Christine
Published: January 2022

We demonstrate randomized compressive tomography of few-photon states that comprise of different temporal modes. We require no a-priori knowledge and reconstruct states using only few measurement settings. Our approach is naturally compatible with integrated architectures.
Organic Dye Molecules as Single Photon Sources for Optical Quantum Technologies
Authors: Lombardi Pietro , Emadi Ramin , Duquennoy Rocco , Murtaza Ghiilam , Colautti Maja , Toninelli Costanza
Published: January 2022

We present Hong-Ou-Mandel (HOM) experiments with photons emitted by a single molecule of Dibenzoterrylene in an Anthracene nanocrystal under pulsed excitation, and preliminary results for photons emitted by two spatially-separated molecules on the same sample.
Submegahertz spectral width photon-pair source based on fused silica microspheres
Authors: Ricardo Erasto Ortiz , Bertoni-Ocampo Cesar , Maldonado-Terrón Mónica , Zurita Arturo Sanchez , Ramirez-Alarcon Roberto , Ramirez Hector Cruz , Castro-Beltrán R. , U'Ren Alfred B.
Published: January 2022

We demonstrate, and characterize, a photon-pair source based on the process of spontaneous four wave mixing in fused-silica microspheres, with single heralded photon bandwidths down to 366kHz [1].
Observing the Modification of Quantum Statistics of Plasmonic Systems
Authors: Hong M. , You C. , Bhusal N. , Chen J. , Quiroz-Juárez M. A. , Fabre J. , Mostafavi F. , Guo J. , De Leon I. , de J. León-Montiel R. , Magaña-Loaiza O. S.
Published: January 2022

We demonstrate that quantum statistics are not always preserved in plasmonic systems and report the observation of their modification. We show the potential of optical near fields to modify the statistics of multiparticle systems.
Experimental Estimation of Causal Influences in the Presence of Quantum Common Cause
Authors: Agresti Iris , Poderini Davide , Polacchi Beatrice , Miklin Nikolai , Gachechiladze Mariami , Suprano Alessia , Polino Emanuele , Milani Giorgio , Carvacho Gonzalo , Chaves Rafael , Sciarrino Fabio
Published: January 2022

The incompatibility between the quantum and classical notion of causality is a well known result in quantum theory. Using a photonic platform we show that, going beyond Bell's scenario, we can detect nonclassicality even when no violation is possible, by intervening in our experimental apparatus.
Efficient computation of the Nagaoka—Hayashi bound for multi-parameter estimation with separable measurements
Authors: Conlon Lorcan O. , Suzuki Jun , Lam Ping Koy , Assad Syed M.
Published: January 2022

We introduce a tight bound for quantum metrology for estimating multiple parameters simulta-neously when performing separable measurements; relevant for experimental accessibility. We show that this bound can be efficiently computed as a semidefinite program.
Quantum Conformance Test
Authors: Ortolano Giuseppe , Boucher Pauline , Degiovanni Ivo Pietro , Losero Elena , Genovese Marco , Ruo-Berchera Ivano
Published: January 2022

We introduce a protocol addressing the conformance test problem. We demonstrate theoretically and experimentally that a simple quantum strategy, using available re-sources and measurement schemes (two-mode squeezed vacuum, photon-counting) can outperform classical strategies.
Nonclassical Phase-Space Correlations in Theory and Experiment
Authors: Bohmann Martin , Biagi Nicola , Sperling Jan , Zavatta Alessandro , Bellini Marco , Agudelo Elizabeth
Published: January 2022

We derive phase-space-inequality conditions for the verification of nonclassicality and implement them experimentally. We certify quantum correlations even if the phase-space distributions are nonnegative and demonstrate noise and loss robustness.
Reducing g(2)(0) of a Parametric Down-Conversion Source via Photon-Number Resolution with Superconducting Nanowire Detectors
Authors: Sempere-Llagostera S. , Thekkadath G. S. , Patel R. B. , Kolthammer W. S. , Walmsley I. A.
Published: January 2022

We demonstrate a 13± 0.4% reduction of the second-order correlation function g(2)(0) by harnessing the photon-number resolving capabilities of commercial super-conducting nanowire single-photon detectors, improving the quality of a heralded single-photon source.
Steady-State Wigner-Negative Light From a Cavity Coupled To a Driven Multilevel Atom
Authors: Elliott A. E. J. , Parkins S.
Published: January 2022

We investigate temporal modes in continuous output light from a cavity QED system in which a single atom undergoes cavity- and laser-assisted, multistep Raman transitions along a ground hyperfine state. Wigner function negativity is predicted.
Population Repumping for Enhanced Rydberg Electrometry
Authors: Prajapati Nikunjkumar , Robinson Amy K. , Berweger Samuel , Simons Matthew , Artusio-Glimpse Alexandra , Holloway Christopher
Published: January 2022

We demonstrate improved sensitivity in Rydberg electrometry using electromagnetically induced transparency with a ground state repumping laser. This doubles the interaction strength while avoiding Doppler or power broadening and improves the sensitivity by nearly 2.
Experimental Detection of BPSK Signals with a Qubit Sensor
Authors: Schultz Kevin , Murphy Andrew , Yoest Helena , Quiroz Gregory , Norris Leigh , Trout Colin J. , Amezcua Mayra , Tien-Street Brian , Bibelhauser Samuel , Gilliss Tom , Curtis Eric D. , Watson Christopher A. , Titum Paraj , Sweeney Timothy
Published: January 2022

We experimentally execute recently developed quantum signal detection protocols and show that they remain effective when applied to real-world communications signals that do not meet the assumptions of the original formulation of the protocol.
Holographic dynamics simulations with a trapped ion quantum computer
Authors: Chertkov Eli , Bohnet Justin , Francois David , Gaebler John , Gresh Dan , Hankin Aaron , Lee Kenny , Hayes David , Neyenhuis Brian , Stutz Russell , Foss-Feig Michael , Potter Andrew C.
Published: January 2022

Using a trapped ion quantum computer, we experimentally demonstrate a tensor-network-based algorithm that simulates the dynamics of infinite-size quantum sys-tems by re-using qubits in the middle of the calculation.
Simulation of quantum jump in three-level atoms using photons
Authors: Cardoso A. C. , Condé J. G. L. , Marques B. , Cabral J. S. , Pádua S.
Published: January 2022

We simulate experimentally a three-level system (cascade, Λ, V ) under quan-tum jump using a three-mode photonic system. A spatial light modulator is programmed for implementing the Kraus operators for quantum jumps.
The Coherent Dynamics of Coupled Non-Degenerate Parametric Oscillators
Authors: Ben-Ami Shai , Aharonovich Igal , Pe'er Avi
Published: January 2022

We explore experimentally synchronization and persistent beating dynamics in coupled non-degenerate parametric oscillators. We demonstrate that synchronization is completely prevented due to mode competition, which is unique to non-degenerate oscillators.
Cost and routing of CV quantum networks
Authors: Centrone Federico , Grosshans Frédéric , Parigi Valentina
Published: January 2022

We investigate the capabilities provided by highly multimode entangled quantum systems with arbitrary shapes, evaluate the cost of their experimental realization and devise an entanglement routing protocol to allow quantum communications between arbitrary nodes.