Results 11 to 20 of about 498,908 (256)
Deep-Learning-Based Halo-Free White-Light Diffraction Phase Imaging
Frontiers in Physics, 2021 In white-light diffraction phase imaging, when used with insufficient spatial filtering, phase image exhibits object-dependent artifacts, especially around the edges of the object, referred to the well-known halo effect.
Kehua Zhang +7 more
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Optical Accelerometers for Detecting Low-Frequency Micro-Vibrations
Applied Sciences, 2022 Optical accelerometers are high-precision inertial sensors that use optical measurement technology to achieve high-precision and electromagnetic interference-resistant acceleration measurements.
Ying-Jun Lei +4 more
doaj +1 more source
Biosensors, 2021 Hot-band absorption (HBA)-induced anti-Stokes fluorescence (ASF) with longer-wavelength excitation is one effective pathway to deep penetration and low autofluorescence in intravital fluorescence imaging, raising demands for fluorophores with broad ...
Yuhuang Zhang +9 more
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Analysis of forward Brillouin scattering in optical fibers with whispering-gallery modes [PDF]
EPJ Web of Conferences, 2023 A new approach to detect and analyze transverse acoustic mode resonances (TAMRs), responsible for forward Brillouin scattering in optical fibers, is reported using optical whispering gallery modes (WGMs).
Sánchez Luis A. +3 more
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Applications of Optical Fiber in Label-Free Biosensors and Bioimaging: A Review
Biosensors, 2022 Biosensing and bioimaging are essential in understanding biological and pathological processes in a living system, for example, in detecting and understanding certain diseases.
Baocheng Li +3 more
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Proposal for detection of magnetic fields through magnetostrictive perturbation of optical fibers [PDF]
, 1980 The possibility of detecting magnetic fields by a magnetostrictive straining of optical fibers is investigated.
Winsor, Harry V., Yariv, Amnon
core +1 more source
Discovery of two infrared supernovae: a new window on the SN search [PDF]
, 2002 We report the discovery of two supernovae (SN 1999gw and SN 2001db) obtained within the framework of an infrared monitoring campaign of Luminous Infrared Galaxies, aimed at detecting obscured supernovae.
Alard +36 more
core +2 more sources
Single atoms in a standing-wave dipole trap [PDF]
, 2002 We trap a single cesium atom in a standing-wave optical dipole trap. Special experimental procedures, designed to work with single atoms, are used to measure the oscillation frequency and the atomic energy distribution in the dipole trap.
Alt, Wolfgang +5 more
core +2 more sources
Accelerating Airy Beams Along Tunable Propagation Trajectories
IEEE Photonics Journal, 2017 We present a simple and highly efficient approach to directly generate tunable Airy beams, which can propagate along arbitrary monotonic curves. Such beams are generated by modulating a Gaussian beam imposed by tunable phase-only patterns.
Yixian Qian, Liangwei Dong, Hongxing Mao
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Healthcare in Low-resource Settings, 2023 This study developed an optical membrane for detecting Hg pollution in water, using polyvinyl chloride and dioctyl sebacate (PVC-DOS). The primary aim was to assess the suitability of PVC-DOS optical membranes as a screening tool for Hg in drinking ...
Choirul Amri +3 more
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