Results 121 to 130 of about 3,207 (176)
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Ultrasonics, 2002
In the paper theoretical bases are presented, as well as their experimental verification, concerning an idea of a new type acousto-optic light ellipticity modulator, based on light diffraction phenomenon by ultrasonic waves, within the so-called intermediate diffraction regime.
G, Gondek, P, Kwiek
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In the paper theoretical bases are presented, as well as their experimental verification, concerning an idea of a new type acousto-optic light ellipticity modulator, based on light diffraction phenomenon by ultrasonic waves, within the so-called intermediate diffraction regime.
G, Gondek, P, Kwiek
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The Journal of the Acoustical Society of America, 2012
There is a great variety of beamforming techniques that can be used for localization of sound sources. The differences among them usually lie in the array layout or in the specific signal processing algorithm used to compute the beamforming output.
Antoni, Torras-Rosell +2 more
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There is a great variety of beamforming techniques that can be used for localization of sound sources. The differences among them usually lie in the array layout or in the specific signal processing algorithm used to compute the beamforming output.
Antoni, Torras-Rosell +2 more
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The serendipity of acousto-optics
Applied Optics, 2008In this paper the author, Adrian Korpel, recalls the fun and serendipity of 40 years of acousto-optic research.
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Acousto-optics and acousto-optical components
2020L’acousto-optique exploite le phénomène de diffraction de la lumière par les ondes acoustiques. Les composants acousto-optiques sont généralement construits autour d’un milieu solide transparent qui supporte la propagation d’ondes élastiques pour des fréquences de quelques dizaines de mégahertz à quelques gigahertz.
Kastelik, Jean-Claude, Laude, Vincent
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Nonreciprocity of acousto-optic interaction in collinear tunable acousto-optic filters
Applied Optics, 2008The investigation of a nonreciprocal effect for the example of collinear acousto-optic interaction is presented. It is shown that this effect influences the parameters of diffraction and the operation of modern acousto-optic devices, particularly acousto-optic tunable filters (AOTFs), at the frequencies of ultrasound of about 1 GHz and higher.
Yury S, Dobrolenskiy +3 more
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Acousto-optic supermultispectral imaging
Applied Optics, 1993An assumption of supermultispectral imaging is presented. The focal point is to encode an object between spatial and spectral information with a tunable bandpass filter, which is called the spatial-spectral encoder. Theoretical and experimental results have verified that the assumption is correct.
G H, Gao, Z, Lin
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Acousto-optic interaction in Raman–Nath acousto-optic diffraction
The European Physical Journal D, 2019In this article, acousto-optic interaction in Raman–Nath acousto-optic diffraction has been discussed. By studying the relations between the power of the diffracted light and its origin in the ultrasonic field, we found that the phase of the diffracted light is modulated temporally and spatially by the ultrasonic wave.
Weng Cuncheng, He Youwu
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Acousto-optic image processing
Applied Optics, 2008Acousto-optic processing of images is based on the angular selectivity of acousto-optic interaction resulting in spatial filtration of the image spectrum. We present recent theoretical and experimental investigations carried out in this field. Much attention is given to the analysis of the acousto-optic cell transfer function form depending on the ...
Vladimir I, Balakshy, Dmitry E, Kostyuk
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Optics News, 1989
An acousto-optic architecture is presented to implement a nonblocking space-division switch with O(N) complexity. Signal degradation is minimal so that the switch is suitable for nonregenerative application within optical networks; it is also capable of rapid reconfiguration. Experiments for a 1 x 4 switch show an insertion loss ranging from 4.6 to 5.6
D O, Harris, A, Vanderlugt
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An acousto-optic architecture is presented to implement a nonblocking space-division switch with O(N) complexity. Signal degradation is minimal so that the switch is suitable for nonregenerative application within optical networks; it is also capable of rapid reconfiguration. Experiments for a 1 x 4 switch show an insertion loss ranging from 4.6 to 5.6
D O, Harris, A, Vanderlugt
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