Results 11 to 20 of about 306,154 (228)

Acousto-optic ptychography

open access: yesOptica, 2021
Acousto-optic imaging (AOI) enables optical-contrast imaging deep inside scattering samples via localized ultrasound-modulation of scattered light. While AOI allows optical investigations at depths, its imaging resolution is inherently limited by the ultrasound wavelength, prohibiting microscopic investigations. Here, we propose a computational imaging
Rosenfeld, Moriya   +5 more
openaire   +3 more sources

Acousto-optic holography

open access: yesThe Journal of the Acoustical Society of America, 2022
Acousto-optic sensing is based on the interaction between sound and light: pressure waves induce density variations, which, in turn, alter the way light propagates in air. Pressure fields are, thus, characterized by measuring changes in light propagation induced by pressure waves.
Samuel A. Verburg   +2 more
openaire   +3 more sources

Acousto-Optical Spectral Technologies

open access: yes, 2023
Acousto-optic technologies have increasingly attracted the attention of scientists and engineers. Acousto-optic interactions have become the flexible basis of compact and robust devices for the analysis of the intensity, spectrum, polarization, and other

core   +1 more source

Preparation, Properties, and Applications of Near Stoichiometric Lithium Tantalate Crystals

open access: yesCrystals, 2023
Lithium tantalate crystal is widely used in optical devices, infrared detectors and surface acoustic wave devices because of its excellent piezoelectric, acousto-optic and nonlinear optical properties.
Xuefeng Xiao   +7 more
doaj   +1 more source

Acousto-optic holography for micrometer-scale grid patterning of amplified laser pulses with single-pulse accuracy

open access: yes, 2022
Many optical systems use acousto-optics for fast steering of light. However, acousto-optic (AO) light diffraction permits manipulation and shaping of light fields in a much broader sense including holography.
Laurent Bourdieu (2045173)   +1 more
core   +1 more source

Acousto-Optic Modulation in Ambient Air

open access: yes, 2023
Control over intensity, shape, direction and phase of coherent light is a cornerstone of 20 photonics. Modern laser optics, however, frequently demands parameter regimes where either the wavelength or the optical power restricts control e.g.
Jiaan Zheng (15298933)   +9 more
core   +1 more source

Blood Vessel Imaging at Pre-Larval Stages of Zebrafish Embryonic Development

open access: yesDiagnostics, 2020
The zebrafish (Danio rerio) is an increasingly popular animal model biological system. In cardiovascular research, it has been used to model specific cardiac phenomena as well as to identify novel therapies for human cardiovascular disease.
Alexander S. Machikhin   +4 more
doaj   +1 more source

Demonstration of Pressure Wave Observation by Acousto-Optic Sensing Using a Self-Mixing Interferometer

open access: yesSensors, 2023
In this paper, we demonstrate that a compact and inexpensive interferometric sensor based on the self-mixing effect in the laser cavity can be used for the characterization of shock waves.
Sébastien Maqueda   +6 more
doaj   +1 more source

ACOUSTO-OPTICS ANALYZERS OF SPECTRAL COMPOSITION OF THE OPTICAL AND RADIO FREQUENCY RADIATION BASED ON THE HIGHERORDER BRAGG’S RESONANCES

open access: yesRadio Physics and Radio Astronomy, 2014
The results of studies of characteristics of acousto-optics spectrum analyzers of radiation in the optical and radio ranges based on the use of Bragg resonances of the first and second orders are showed. The characteristics of acoustooptics devices using
L. F. Kupchenko   +2 more
doaj   +1 more source

Photochemically-induced acousto-optics in gases [PDF]

open access: yes
Acousto-optics consists of launching acoustic waves in a medium (usually a crystal) in order to modulate its refractive index and create a tunable optical grating.
Ou, Ke   +8 more
core   +4 more sources

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