Results 151 to 160 of about 248,026 (194)
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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 diffraction with allowance for the influence of the acousto-optic cell boundaries
Technical Physics, 2012The influence of the dimension of an acousto-optic cell in the plane orthogonal to the plane of acousto-optic diffraction on the acoustic field structure and, consequently, on acousto-optic diffraction is studied theoretically and experimentally. A method is suggested for approximate calculation of the acoustic field with regard to the acoustic column ...
S. N. Antonov +3 more
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Acousto-optic tunable filter with segmented acousto-optic interaction region
The Journal of the Acoustical Society of America, 2004An acousto-optic tunable filter that includes a polarization beamsplitter, a multi-segment interaction region and a polarization beam combiner is described. The polarization beamsplitter generates a first and a second polarized optical signal. The multi-segment optical interaction region includes a first optical interaction region and a first acoustic ...
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Acousto-optic materials and acousto-optic cell applications
SPIE Proceedings, 1996Victor V. Kludzin +2 more
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1982
In the preceding chapter, we have shown that modulators and switches can be made by using the electro-optic effect to produce a grating-shaped variation of the index of refraction within the waveguide. This grating structure causes diffraction of the guided optical waves, resulting in modulation or switching.
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In the preceding chapter, we have shown that modulators and switches can be made by using the electro-optic effect to produce a grating-shaped variation of the index of refraction within the waveguide. This grating structure causes diffraction of the guided optical waves, resulting in modulation or switching.
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Acousto-optic nonlinearities in multifrequency acousto-optic diffraction
IEEE Journal of Quantum Electronics, 1974openaire +1 more source