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Optica Publishing Group

1 August 2021, Volume 46, Issue 15, pp. 3496-3816  
81 articles

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Lens-free digital holographic microscopy for cell imaging and tracking by Fresnel diffraction from a phase discontinuity

Opt. Lett. 46(15), 3516-3519 (2021)  View: HTML | PDF  [Suppl. Mat. (2)]

Improved selectivity of optical transmission through cascaded waveguide–metal-grating filters

Opt. Lett. 46(15), 3532-3535 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Structured light engineering using a photonic nanojet

Opt. Lett. 46(15), 3661-3664 (2021)  View: HTML | PDF

Laboratory X-ray interferometry imaging with a fan-shaped source grating

Opt. Lett. 46(15), 3693-3696 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Anti-reflection subwavelength gratings for InP-based waveguide facets

open access Opt. Lett. 46(15), 3701-3704 (2021)  View: HTML | PDF

Probabilistic shaping and neural network-based optimization for a nonlinear frequency division multiplexing system

Opt. Lett. 46(15), 3697-3700 (2021)  View: HTML | PDF

Error-free PAM-4 transmission by a high-speed plastic optical fiber without forward error correction

Opt. Lett. 46(15), 3709-3712 (2021)  View: HTML | PDF

Linearity improvement of analog photonic link based on a phase-coherent orthogonal light wave generator

Opt. Lett. 46(15), 3753-3756 (2021)  View: HTML | PDF

Large-scale true-time-delay remote beamforming with EO frequency combs and multicore fiber

Opt. Lett. 46(15), 3793-3796 (2021)  View: HTML | PDF

Dual-path deep learning reconstruction framework for propagation-based X-ray phase–contrast computed tomography with sparse-view projections

Opt. Lett. 46(15), 3552-3555 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Two-dimensional complex wavelet with directional selectivity used in fringe projection profilometry

Opt. Lett. 46(15), 3653-3656 (2021)  View: HTML | PDF

Coherence theory for electromagnetic, planar, PT-symmetric sources

Opt. Lett. 46(15), 3576-3579 (2021)  View: HTML | PDF

Non-Planck thermal emission from two-level media

Opt. Lett. 46(15), 3584-3587 (2021)  View: HTML | PDF

Editors' Pick

Topological bimeronic beams

Opt. Lett. 46(15), 3737-3740 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Rotational Doppler shift from a rotating rod

Opt. Lett. 46(15), 3765-3768 (2021)  View: HTML | PDF

Editors' Pick

High-speed hyperspectral four-wave-mixing microscopy with frequency combs

Opt. Lett. 46(15), 3556-3559 (2021)  View: HTML | PDF  [Suppl. Mat. (6)]

Combining time of flight and photometric stereo imaging for 3D reconstruction of discontinuous scenes

Opt. Lett. 46(15), 3612-3615 (2021)  View: HTML | PDF

Development of a handheld compression optical coherence elastography probe with a disposable stress sensor

Opt. Lett. 46(15), 3669-3672 (2021)  View: HTML | PDF

Machine learning enabled self-calibration single fiber endoscopic imaging

Opt. Lett. 46(15), 3673-3676 (2021)  View: HTML | PDF

Optical random speckle encoding based on hybrid wavelength and phase modulation

Opt. Lett. 46(15), 3745-3748 (2021)  View: HTML | PDF

Suppression of avoided resonance crossing in microresonators

Opt. Lett. 46(15), 3508-3511 (2021)  View: HTML | PDF

Steering non-Hermitian skin modes by synthetic gauge fields in optical ring resonators

Opt. Lett. 46(15), 3512-3515 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Temperature-dependent characteristics of GeSn/Ge multiple-quantum-well photoconductors on silicon

Opt. Lett. 46(15), 3604-3607 (2021)  View: HTML | PDF

Compact dual-polarization silicon integrated couplers for multicore fibers

Opt. Lett. 46(15), 3649-3652 (2021)  View: HTML | PDF

Conversion efficiency of soliton Kerr combs

Opt. Lett. 46(15), 3657-3660 (2021)  View: HTML | PDF

Editors' Pick

Millimeter-long metamaterial surface-emitting antenna in the silicon photonics platform

Opt. Lett. 46(15), 3733-3736 (2021)  View: HTML | PDF

Robust broadband athermal 2 × 2 Mach–Zehnder interferometer with sub-wavelength grating adiabatic couplers

open access Opt. Lett. 46(15), 3781-3784 (2021)  View: HTML | PDF

Silicon-coupled tantalum pentoxide microresonators with broadband low thermo-optic coefficient

Opt. Lett. 46(15), 3813-3816 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Room temperature mid-infrared fiber lasing beyond 5 µm in chalcogenide glass small-core step index fiber

open access Opt. Lett. 46(15), 3504-3507 (2021)  View: HTML | PDF

Fabrication of nanogap structures through spatially shaped femtosecond laser modification with the assistance of wet chemical etching

Opt. Lett. 46(15), 3560-3563 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Mode-locked all-PM Nd-doped fiber laser near 910 nm

Opt. Lett. 46(15), 3564-3567 (2021)  View: HTML | PDF

2.5 GHz harmonic mode locking from a femtosecond Yb-doped fiber laser with high fundamental repetition rate

Opt. Lett. 46(15), 3621-3624 (2021)  View: HTML | PDF

W-type normal dispersion thulium-doped fiber-based high-energy all-fiber femtosecond laser at 1.7 µm

Opt. Lett. 46(15), 3637-3640 (2021)  View: HTML | PDF

Generation of optical vortex lattices by a coherent beam combining system

Opt. Lett. 46(15), 3665-3668 (2021)  View: HTML | PDF  [Suppl. Mat. (3)]

Distributed feedback lasers using surface gratings in Bragg waveguides

Opt. Lett. 46(15), 3689-3692 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Low-threshold 1150 nm single-polarization single-frequency Yb-doped DFB fiber laser

Opt. Lett. 46(15), 3705-3708 (2021)  View: HTML | PDF

Characterizing the spatial entanglement from laser modes analogous to quantum wave functions

Opt. Lett. 46(15), 3713-3716 (2021)  View: HTML | PDF

Narrow-linewidth single-polarization fiber laser using non-polarization optics

Opt. Lett. 46(15), 3769-3772 (2021)  View: HTML | PDF

Experimental demonstration of spatial rogue waves in the passively Q-switched Nd:YAG laser

Opt. Lett. 46(15), 3773-3776 (2021)  View: HTML | PDF

Enhancing SERS detection on a biocompatible metallic substrate for diabetes diagnosing

Opt. Lett. 46(15), 3801-3804 (2021)  View: HTML | PDF

Self-adaptive metasurface platform based on computer vision

Opt. Lett. 46(15), 3520-3523 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Multi-band on-chip photonic spin Hall effect and selective excitation of whispering gallery modes with metasurface-integrated microcavity

Opt. Lett. 46(15), 3528-3531 (2021)  View: HTML | PDF

Rotationally tunable varifocal 3D metalens

Opt. Lett. 46(15), 3548-3551 (2021)  View: HTML | PDF

Erasable Cs4PbBr6 quantum dots glass with switchable photoluminescence

Opt. Lett. 46(15), 3580-3583 (2021)  View: HTML | PDF

Thermo-optical properties of terbium sesquioxide (Tb2O3) ceramics at room temperature

Opt. Lett. 46(15), 3592-3595 (2021)  View: HTML | PDF

Editors' Pick

All-dielectric perfect absorber based on quadrupole modes

Opt. Lett. 46(15), 3596-3599 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Reconfigurable meta-radiator based on flexible mechanically controlled current distribution in three-dimensional space

Opt. Lett. 46(15), 3633-3636 (2021)  View: HTML | PDF

Yb:GdScO3 crystal for efficient ultrashort pulse lasers

Opt. Lett. 46(15), 3641-3644 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Laser refrigeration of optically levitated sodium yttrium fluoride nanocrystals

Opt. Lett. 46(15), 3797-3800 (2021)  View: HTML | PDF

Editors' Pick

F-mode ultraviolet photoacoustic remote sensing for label-free virtual H&E histopathology using a single excitation wavelength

Opt. Lett. 46(15), 3500-3503 (2021)  View: HTML | PDF

High-sensitivity frequency modulation CARS with a compact and fast tunable fiber-based light source

Opt. Lett. 46(15), 3544-3547 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Efficient second-harmonic generation of a high-energy, femtosecond laser pulse in a lithium triborate crystal

Opt. Lett. 46(15), 3540-3543 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Editors' Pick

Multimodal nonlinear-optical imaging of nucleoli

Opt. Lett. 46(15), 3608-3611 (2021)  View: HTML | PDF

Frequency-resolved spatial beam mapping in multimode fibers: application to mid-infrared supercontinuum generation

Opt. Lett. 46(15), 3717-3720 (2021)  View: HTML | PDF

Efficient direct mapping of the nonlinear optical response via modulated Airy beams

Opt. Lett. 46(15), 3725-3728 (2021)  View: HTML | PDF

Millisecond-long suppression of spectroscopic optical signals using laser filamentation

Opt. Lett. 46(15), 3777-3780 (2021)  View: HTML | PDF

Compact devices for generating multi-focus autofocusing optical beams in free space

Opt. Lett. 46(15), 3524-3527 (2021)  View: HTML | PDF

Monolithic integrated waveguide device with dual functions of electro-optic modulation and optical amplification

Opt. Lett. 46(15), 3536-3539 (2021)  View: HTML | PDF

Vortices-interaction-induced microstreaming for the pump-free separation of particles

Opt. Lett. 46(15), 3629-3632 (2021)  View: HTML | PDF  [Suppl. Mat. (5)]

Thermocapillary dewetting-based dynamic spatial light modulator

Opt. Lett. 46(15), 3721-3724 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Switchable imaging between edge-enhanced and bright-field based on a phase-change metasurface

Opt. Lett. 46(15), 3741-3744 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Understanding the degradation mechanisms of InGaN/GaN multiple quantum well UV photodetectors submitted to different current stresses

Opt. Lett. 46(15), 3568-3571 (2021)  View: HTML | PDF

Locally excited surface plasmon resonance for refractive index sensing with high sensitivity and high resolution

Opt. Lett. 46(15), 3625-3628 (2021)  View: HTML | PDF

Simple approach for extending the ambiguity-free range of dual-comb ranging

open access Opt. Lett. 46(15), 3677-3680 (2021)  View: HTML | PDF

Enabling long range distributed vibration sensing using multicore fiber interferometers

Opt. Lett. 46(15), 3685-3688 (2021)  View: HTML | PDF

High dynamic defocus response method for binary defocusing fringe projection profilometry

Opt. Lett. 46(15), 3749-3752 (2021)  View: HTML | PDF

Multi-color method for the self-correction of the air refractive index

Opt. Lett. 46(15), 3785-3788 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Optical feedback interferometry with 40 km transmission distance based on a distributed feedback fiber laser

Opt. Lett. 46(15), 3805-3808 (2021)  View: HTML | PDF

GeSn-on-insulator dual-waveband resonant-cavity-enhanced photodetectors at the 2 µm and 1.55 µm optical communication bands

Opt. Lett. 46(15), 3809-3812 (2021)  View: HTML | PDF

Space-time-domain observation of high-speed optical beam scanning in a thermo-optic Si photonic crystal slow-light beam scanner

Opt. Lett. 46(15), 3600-3603 (2021)  View: HTML | PDF

Magnetically induced linear,nonreciprocal, and tunable transparency

Opt. Lett. 46(15), 3616-3619 (2021)  View: HTML | PDF

Statistical Mueller matrix driven discrimination of suspended particles

Opt. Lett. 46(15), 3645-3648 (2021)  View: HTML | PDF

Transient electromagnetic singularities in random three-dimensional optical fields

Opt. Lett. 46(15), 3789-3792 (2021)  View: HTML | PDF

Position correlation enabled quantum imaging with undetected photons

Opt. Lett. 46(15), 3496-3499 (2021)  View: HTML | PDF

Experimental measurement-device-independent quantum key distribution with the double-scanning method

Opt. Lett. 46(15), 3729-3732 (2021)  View: HTML | PDF

Twin-field quantum digital signatures

Opt. Lett. 46(15), 3757-3760 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Dual-axis confocal configuration for depth sensitive fluorescence spectroscopy

Opt. Lett. 46(15), 3588-3591 (2021)  View: HTML | PDF

Polymer-coated moth-eye hybrid structure for broadband antireflection in the terahertz region

Opt. Lett. 46(15), 3761-3764 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Quantitative terahertz emission nanoscopy with multiresonant near-field probes

Opt. Lett. 46(15), 3572-3575 (2021)  View: HTML | PDF  [Suppl. Mat. (1)]

Terahertz emission from ultrathin bismuth layers

Opt. Lett. 46(15), 3681-3684 (2021)  View: HTML | PDF

Broadband, silicon photonic, optical add–drop filters with 3 dB bandwidths up to 11 THz: publisher’s note

open access Opt. Lett. 46(15), 3620-3620 (2021)  View: HTML | PDF

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