Results 1 to 10 of about 248,026 (194)
Some of the next articles are maybe not open access.
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
Photoniques, 2023
The laser invention in 1960 has led to the development of acousto-optics and its applications, mainly for deflection, modulation and signal processing. Technical progresses in both crystal growth and high frequency piezoelectric transducers have brought valuable benefits to acousto-optic components ‘improvements and the use of these components in ...
Franck Darde, Ricky Beeharee
openaire +1 more source
The laser invention in 1960 has led to the development of acousto-optics and its applications, mainly for deflection, modulation and signal processing. Technical progresses in both crystal growth and high frequency piezoelectric transducers have brought valuable benefits to acousto-optic components ‘improvements and the use of these components in ...
Franck Darde, Ricky Beeharee
openaire +1 more source
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.
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
The cologne acousto-optical spectrometers
Experimental Astronomy, 1989The present state of the art of acousto optical spectrometer (AOS) development for spectroscopy is reviewed with special emphasis given to the University of Cologne built systems. The underlying principles of acousto optical detection are discussed and are used for an in depth analysis of limitations and an optimal use of this powerful spectroscopic ...
R. Schieder, V. Tolls, G. Winnewisser
openaire +1 more source