Orbital angular momentum of a laser beam behind an off-axis spiral phase plate

Victor Kotlyar, Alexey Kovalev, Alexey Porfirev, and Elena Kozlova

Opt. Lett. 44(15), 3673-3676 (2019)  View: HTML | PDF

All-fiber frequency shifter consisting of a fiber Bragg grating modulated via an acoustic flexural wave for optical heterodyne measurement

Zeyang Gao, Pengfa Chang, Ligang Huang, Feng Gao, Dong Mao, Wending Zhang, and Ting Mei

Opt. Lett. 44(15), 3725-3728 (2019)  View: HTML | PDF

Recurrent neural network (RNN) for delay-tolerant repetition-coded (RC) indoor optical wireless communication systems

Jiayuan He, Jeonghun Lee, Tingting Song, Hongtao Li, Sithamparanathan Kandeepan, and Ke Wang

Opt. Lett. 44(15), 3745-3748 (2019)  View: HTML | PDF

Frequency offset drift monitoring: enabling simultaneously optimum performance and minimum cost of frequency offset estimation

Jianing Lu and Chao Lu

Opt. Lett. 44(15), 3753-3756 (2019)  View: HTML | PDF

Non-iterative blind linearization algorithm for DML-based multi-IF-over-fiber mobile fronthaul systems

Peixuan Li, Wei Pan, Xihua Zou, Lianshan Yan, Bin Luo, You-Wei Chen, and Gee-Kung Chang

Opt. Lett. 44(15), 3901-3904 (2019)  View: HTML | PDF

Beam profiler network (BPNet): a deep learning approach to mode demultiplexing of Laguerre–Gaussian optical beams

Amit Bekerman, Sahar Froim, Barak Hadad, and Alon Bahabad

Opt. Lett. 44(15), 3629-3632 (2019)  View: HTML | PDF

Computational adaptive optics for optical coherence tomography using multiple randomized subaperture correlations

Dierck Hillmann, Clara Pfäffle, Hendrik Spahr, Sazan Burhan, Lisa Kutzner, Felix Hilge, and Gereon Hüttmann

Opt. Lett. 44(15), 3905-3908 (2019)  View: HTML | PDF

Low-noise high-efficiency double-phase hologram by multiplying a weight factor

Yoo Kwang Kim, Jin Su Lee, and Yong Hyub Won

Opt. Lett. 44(15), 3649-3652 (2019)  View: HTML | PDF

Dual-wavelength-band subwavelength grating coupler operating in the near infrared and extended shortwave infrared

Wen Zhou and Hon Ki Tsang

Opt. Lett. 44(15), 3621-3624 (2019)  View: HTML | PDF  [Suppl. Mat. (2)]

Lasing action in low-resistance nanolasers based on tunnel junctions

Cheng-Yi Fang, Si Hui Pan, Felipe Vallini, Antti Tukiainen, Jari Lyytikäinen, Gustav Nylund, Boubacar Kanté, Mircea Guina, Abdelkrim El Amili, and Yeshaiahu Fainman

Opt. Lett. 44(15), 3669-3672 (2019)  View: HTML | PDF

Sub-wavelength grating interdigitated combs as photonic waveguides

Boris Taurel, Pierre Labeye, Jean-Marc Fedeli, and Laurent Duraffourg

Opt. Lett. 44(15), 3869-3872 (2019)  View: HTML | PDF

Polychromatic, continuous-wave mirrorless lasing from monochromatic pumping of cesium vapor

D. Antypas, O. Tretiak, D. Budker, and A. Akulshin

Opt. Lett. 44(15), 3657-3660 (2019)  View: HTML | PDF  [Suppl. Mat. (1)]

Kerr-lens mode-locked Pr³⁺:LuLiF₄ laser

Yuxia Zhang, Rulin Miao, Dazhi Lu, Mauro Tonelli, Jiyang Wang, Haohai Yu, and Huaijin Zhang

Opt. Lett. 44(15), 3665-3668 (2019)  View: HTML | PDF

Frequency expansion of orthogonally polarized dual-wavelength laser by cascaded stimulated Raman scattering

Shi-Bo Dai, Zhi-Hua Tu, Si-Qi Zhu, Hao Yin, Zhen Li, Yi Zhen, and Zhen-Qiang Chen

Opt. Lett. 44(15), 3705-3708 (2019)  View: HTML | PDF

Generating bona fide twisted Gaussian Schell-model beams

Haiyun Wang, Xiaofeng Peng, Lin Liu, Fei Wang, Yangjian Cai, and Sergey A. Ponomarenko

Opt. Lett. 44(15), 3709-3712 (2019)  View: HTML | PDF

Laser pulse width control using inverse-Bremsstrahlung photon absorption

Sungkyun Oh, Sangeun Bae, Campbell D. Carter, and Hyungrok Do

Opt. Lett. 44(15), 3721-3724 (2019)  View: HTML | PDF

All-fiber holmium distributed feedback laser at 2.07 μm

A. A. Wolf, M. I. Skvortsov, V. A. Kamynin, I. V. Zhluktova, S. R. Abdullina, A. V. Dostovalov, V. B. Tsvetkov, and S. A. Babin

Opt. Lett. 44(15), 3781-3784 (2019)  View: HTML | PDF

Continuously tunable single-frequency 455 nm blue laser for high-state excitation transition of cesium

Fengqin Li, Biao Zhao, Jiao Wei, Pixian Jin, Huadong Lu, and Kunchi Peng

Opt. Lett. 44(15), 3785-3788 (2019)  View: HTML | PDF

Fully resolved lineshape measurement of a seeded and unseeded optical parametric oscillator using a virtually imaged phased array spectrometer

Christopher M. Limbach

Opt. Lett. 44(15), 3821-3824 (2019)  View: HTML | PDF

Narrow-linewidth fiber amplifier for gravitational-wave detectors

Aaron Buikema, Franklin Jose, Steven J. Augst, Peter Fritschel, and Nergis Mavalvala

Opt. Lett. 44(15), 3833-3836 (2019)  View: HTML | PDF

Common-injection-induced isolated desynchronization in delay-coupled VCSELs networks with variable-polarization optical feedback

Liyue Zhang, Wei Pan, Shuiying Xiang, Lianshan Yan, Bin Luo, and Xihua Zou

Opt. Lett. 44(15), 3845-3848 (2019)  View: HTML | PDF

Simultaneous measurement of the radial and azimuthal mode indices of a higher-order partially coherent vortex beam based on phase detection

Jun Zeng, Xingyuan Lu, Leixin Liu, Xinlei Zhu, Chengliang Zhao, and Yangjian Cai

Opt. Lett. 44(15), 3881-3884 (2019)  View: HTML | PDF

Integrated dual-channel sensing utilizing polarized dissimilation based on photonic spin-orbit interaction

Xuguang Huang, Xiaoting Ou, Zhilie Tang, Hong-Chao Liu, and Qilong Tan

Opt. Lett. 44(15), 3757-3760 (2019)  View: HTML | PDF

Optical analysis of the refractive index and birefringence of hexagonal boron nitride from the visible to near-infrared

Yoonhyuk Rah, Yeonghoon Jin, Sejeong Kim, and Kyoungsik Yu

Opt. Lett. 44(15), 3797-3800 (2019)  View: HTML | PDF

Giant spin-selective asymmetric transmission in multipolar-modulated metasurfaces

Dina Ma, Zhancheng Li, Yuebian Zhang, Wenwei Liu, Hua Cheng, Shuqi Chen, and Jianguo Tian

Opt. Lett. 44(15), 3805-3808 (2019)  View: HTML | PDF

Linearly thermal-tunable near-infrared ultra-narrowband metamaterial perfect absorber with low power and a large modulation depth based on a four-nanorod-coupled a-silicon resonator

Lei Zhao, Xiao Yang, Qinglin Niu, Zhihong He, and Shikui Dong

Opt. Lett. 44(15), 3885-3888 (2019)  View: HTML | PDF

Optic axis uniformity as a metric to improve the contrast of birefringent structures and analyze the retinal nerve fiber layer in polarization-sensitive optical coherence tomography

Joy Willemse, Maximilian G. O. Gräfe, Jacoba A. van de Kreeke, Fabio Feroldi, Frank D. Verbraak, and Johannes F. de Boer

Opt. Lett. 44(15), 3893-3896 (2019)  View: HTML | PDF

Super-resolution microscopy via ptychographic structured modulation of a diffuser

Pengming Song, Shaowei Jiang, He Zhang, Zichao Bian, Chengfei Guo, Kazunori Hoshino, and Guoan Zheng

Opt. Lett. 44(15), 3645-3648 (2019)  View: HTML | PDF  [Suppl. Mat. (2)]

Calculation of high-order harmonic generation in laser-produced lithium plasma

V. V. Kim, R. A. Ganeev, G. S. Boltaev, M. Iqbal, and A. S. Alnaser

Opt. Lett. 44(15), 3693-3696 (2019)  View: HTML | PDF

Self-similar evolution in nonlocal nonlinear media

T. P. Horikis, D. J. Frantzeskakis, N. Antar, I. Bakirtaş, and N. F. Smyth

Opt. Lett. 44(15), 3701-3704 (2019)  View: HTML | PDF

Dark rectangular noise-like pulses in a figure-nine fiber laser based on a nonlinear amplifying loop mirror

Renlai Zhou, Dan Yu, Xuanyi Liu, Qian Li, and H. Y. Fu

Opt. Lett. 44(15), 3717-3720 (2019)  View: HTML | PDF

Background-free two-photon fluorescence readout via a three-photon charge-state modulation of nitrogen-vacancy centers in diamond

I. V. Fedotov and A. M. Zheltikov

Opt. Lett. 44(15), 3737-3740 (2019)  View: HTML | PDF

Dual wavelength Talbot self-imaging using facet patterned nonlinear crystals

A. M. Vyunishev, S. A. Myslivets, V. A. Fokin, M. N. Volochaev, T. E. Smolyarova, N. V. Radionov, A. I. Zaitsev, V. G. Arkhipkin, and A. S. Chirkin

Opt. Lett. 44(15), 3761-3764 (2019)  View: HTML | PDF

Robust, efficient, and broadband SHG of ultrashort pulses in composite crystals

Yonathan Erlich, Andon Rangelov, Germano Montemezzani, and Haim Suchowski

Opt. Lett. 44(15), 3837-3840 (2019)  View: HTML | PDF

1D time evolving electric field profile measurements with sub-ns resolution using the E-FISH method

Benjamin M. Goldberg, Stephan Reuter, Arthur Dogariu, and Richard B. Miles

Opt. Lett. 44(15), 3853-3856 (2019)  View: HTML | PDF

Intensity modulated terahertz vortex wave generation in air plasma by two-color femtosecond laser pulses

Maksym Ivanov, Illia Thiele, Luc Bergé, Stefan Skupin, Danas Buožius, and Virgilijus Vaičaitis

Opt. Lett. 44(15), 3889-3892 (2019)  View: HTML | PDF  [Suppl. Mat. (1)]

Spin-dependent directional emission from a quantum dot ensemble embedded in an asymmetric waveguide

Wenbo Lin, Yasutomo Ota, Satoshi Iwamoto, and Yasuhiko Arakawa

Opt. Lett. 44(15), 3749-3752 (2019)  View: HTML | PDF

High-frequency, resonant acousto-optic modulators fabricated in a MEMS foundry platform

Stefano Valle and Krishna C. Balram

Opt. Lett. 44(15), 3777-3780 (2019)  View: HTML | PDF

Dielectrophoresis and colloidal phase transitions for ultra-broadband optical limiting

Rittirong Nuansri, Prathan Buranasiri, H. Daniel Ou-Yang, and Ivan Biaggio

Opt. Lett. 44(15), 3801-3804 (2019)  View: HTML | PDF  [Suppl. Mat. (1)]

Ultrasound sensing based on an in-fiber dual-cavity Fabry–Perot interferometer

Huibo Fan, Liang Zhang, Song Gao, Liang Chen, and Xiaoyi Bao

Opt. Lett. 44(15), 3606-3609 (2019)  View: HTML | PDF

Broadband extreme ultraviolet dispersion measurements using a high-harmonic source

G. S. M. Jansen, X. Liu, K. S. E. Eikema, and S. Witte

Opt. Lett. 44(15), 3625-3628 (2019)  View: HTML | PDF

Tm³⁺/Yb³⁺:BaMoO₄ phosphor for high-performance thermometry operating in the first biological window

Liu Xin, Lei Ruoshan, Li Yinyan, and Xu Shiqing

Opt. Lett. 44(15), 3633-3636 (2019)  View: HTML | PDF

Spherical microcavity-based membrane-free Fizeau interferometric acoustic sensor

Chunyang Han, Chenyu Zhao, Hui Ding, and Chen Chen

Opt. Lett. 44(15), 3677-3680 (2019)  View: HTML | PDF

Immersion photoacoustic spectrometer (iPAS) for arcing fault detection in power transformers

Sheng Zhou and Davide Iannuzzi

Opt. Lett. 44(15), 3741-3744 (2019)  View: HTML | PDF

C-curve feature of complex permittivity estimation based on multi-polarization measurements in passive millimeter-wave sensing

Yayun Cheng, Fei Hu, Yan Hu, Ziran Zhao, and Yingxin Wang

Opt. Lett. 44(15), 3765-3768 (2019)  View: HTML | PDF

Bidirectional frequency-shifting loop for dual-comb spectroscopy

Vicente Duran, Leo Djevarhidjian, and Hugues Guillet de Chatellus

Opt. Lett. 44(15), 3789-3792 (2019)  View: HTML | PDF

Direct laser writing of a phase-shifted Bragg grating waveguide for ultrasound detection

Heming Wei and Sridhar Krishnaswamy

Opt. Lett. 44(15), 3817-3820 (2019)  View: HTML | PDF

Universal phase reconstruction approach of self-calibrating phase-shifting interferometry

Zhongtao Cheng and Dong Liu

Opt. Lett. 44(15), 3857-3860 (2019)  View: HTML | PDF

Ultra-narrow linewidth laser based on a semiconductor gain chip and extended Si₃N₄ Bragg grating

Chao Xiang, Paul A. Morton, and John E. Bowers

Opt. Lett. 44(15), 3825-3828 (2019)  View: HTML | PDF

Control of orbital angular momentum with partially coherent vortex beams

Yongtao Zhang, Yangjian Cai, and Greg Gbur

Opt. Lett. 44(15), 3617-3620 (2019)  View: HTML | PDF

Abruptly autofocusing beams from phase perturbations having forced symmetry

Dafne Amaya, Óscar Martínez-Matos, and Pablo Vaveliuk

Opt. Lett. 44(15), 3733-3736 (2019)  View: HTML | PDF

Singular beams based on tangential phase warp

Eduardo Peters, Gustavo Funes, and Jaime A. Anguita

Opt. Lett. 44(15), 3769-3772 (2019)  View: HTML | PDF

Accurate and rapid measurement of optical vortex links and knots

Jinzhan Zhong, Shuxia Qi, Sheng Liu, Peng Li, Bingyan Wei, Xuyue Guo, Huachao Cheng, and Jianlin Zhao

Opt. Lett. 44(15), 3849-3852 (2019)  View: HTML | PDF

Gate-tunable optical filter based on conducting oxide metasurface heterostructure

Jinqiannan Zhang, Jingyi Yang, Michael Schell, Aleksei Anopchenko, Long Tao, Zhongyuan Yu, and Ho Wai Howard Lee

Opt. Lett. 44(15), 3653-3656 (2019)  View: HTML | PDF

Dynamic control of plasmonic beams

Dror Weisman and Ady Arie

Opt. Lett. 44(15), 3689-3692 (2019)  View: HTML | PDF  [Suppl. Mat. (2)]

Shape-engineered silver nanocones for refractive index plasmonic nanosensors

Hongyan Liang, Hao Ren, Yangzhe Guo, and Yurui Fang

Opt. Lett. 44(15), 3713-3716 (2019)  View: HTML | PDF  [Suppl. Mat. (3)]

Enhanced second-harmonic generation assisted by breathing mode in a multi-resonant plasmonic trimer

Fajun Xiao, Shiyin Cao, Wuyun Shang, Weiren Zhu, Lei Han, Ting Mei, Malin Premaratne, and Jianlin Zhao

Opt. Lett. 44(15), 3813-3816 (2019)  View: HTML | PDF

Dynamically configurable, successively switchable multispectral plasmon-induced transparency

Jietao Liu, Ioannis Papakonstantinou, Haifeng Hu, and Xiaopeng Shao

Opt. Lett. 44(15), 3829-3832 (2019)  View: HTML | PDF

Propagation of toroidal localized spoof surface plasmons using conductive coupling

Bo Sun, Ying-Ying Yu, Shun Zhang, and Wen-Xing Yang

Opt. Lett. 44(15), 3861-3864 (2019)  View: HTML | PDF

Probing mid-infrared plasmon resonances in extended radial fractal structures

Gregory Q. Wallace, Danielle M. McRae, and François Lagugné-Labarthet

Opt. Lett. 44(15), 3865-3868 (2019)  View: HTML | PDF

Generation of Gaussian-modulated entangled states for continuous variable quantum communication

Ning Wang, Shanna Du, Wenyuan Liu, Xuyang Wang, and Yongmin Li

Opt. Lett. 44(15), 3613-3616 (2019)  View: HTML | PDF

High-visibility Franson interference of time–energy entangled photon pairs from warm atomic ensemble

Jiho Park, Danbi Kim, Heonoh Kim, and Han Seb Moon

Opt. Lett. 44(15), 3681-3684 (2019)  View: HTML | PDF

Second-order photon correlation measurement with picosecond resolution using frequency upconversion

Aymeric Delteil, Chun Tat Ngai, Thomas Fink, and Ataç İmamoğlu

Opt. Lett. 44(15), 3877-3880 (2019)  View: HTML | PDF

Study of reflectors for illumination via conformal maps

Luis A. Alemán-Castañeda and Miguel A. Alonso

Opt. Lett. 44(15), 3809-3812 (2019)  View: HTML | PDF  [Suppl. Mat. (3)]

Real-time spectral analysis of ultrafast pulses using a free-space angular chirp-enhanced delay

Yiqing Xu and Stuart G. Murdoch

Opt. Lett. 44(15), 3697-3700 (2019)  View: HTML | PDF

Bright near-surface silicon vacancy centers in diamond fabricated by femtosecond laser ablation

Youying Rong, Ke Cheng, Zhiping Ju, Chengda Pan, Qiang Ma, Shikang Liu, Si Shen, Botao Wu, and Tianqing Jia

Opt. Lett. 44(15), 3793-3796 (2019)  View: HTML | PDF

Giant two- to five-photon absorption in CsPbBr_2.7I_0.3 two-dimensional nanoplatelets

Junzi Li, Fuli Zhao, Shuyu Xiao, Jiaji Cheng, Xin Qiu, Xiaodong Lin, Rui Chen, and Tingchao He

Opt. Lett. 44(15), 3873-3876 (2019)  View: HTML | PDF