Journal ArticleDOI
Image scanning through the acousto−optical effect produced by acoustic surface waves
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TLDR
In this article, the scanning of a transparency is done by letting a collimated light wave front illuminate it and be diffracted by very short pulses of ultrasonic surface waves, which give a potential number of resolved spots per second almost equal to 107.Abstract:
The scanning of a transparency is done by letting a collimated light wave front illuminate it and be diffracted by very short pulses of ultrasonic surface waves. Detection of diffracted light follows a time dependence that equals the transparency brightness along each line that is successively scanned. 94−MHz wave trains, about 10 wavelengths long, give a potential number of resolved spots per second almost equal to 107. Interaction geometry by back−surface reflection has been used, which greatly enhances the diffraction efficiency and yet retains the large acousto−optical bandwidth proper to surface waves.read more
Citations
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Journal ArticleDOI
III. Optical Probing of Surface Waves and Surface Wave Devices
TL;DR: Tsai et al. as mentioned in this paper proposed a wideband guided-light beam-deflector using tilting surface acousto-optic Bragg devices, which achieved state-of-the-art performance.
Journal ArticleDOI
Application of acousto-optic interaction for holographic conversion of light fields
TL;DR: In this article, a survey of acousto-optic conversion of optical images is presented, with particular attention paid to the visualization of phase objects and registration of optical wavefronts.
Journal ArticleDOI
Acoustooptic interaction for most effective deflection of unguided light via acoustic surface waves.
TL;DR: The light deflection efficiencies of surface acoustic waves propagating on YZ-LiNbO(3) crystal are examined for different geometrical configurations and the optimum one is found to be the back reflection geometry, with S polarization of the impinging light beam.
Patent
Acousto-optic image scanner
TL;DR: An acousto-optic image scanner employs pulses of acoustic surface waves which propagate along the length of a piezoelectric crystal performing as a traveling phase grating to diffract a collimated monochromatic light beam which has a spatial light distribution corresponding to the information content of a line of the image.
Proceedings ArticleDOI
Artificial Intelligence Applications Of Fast Optical Memory Access
P. D. Henshaw,A. B. Todtenkopf +1 more
TL;DR: The considerations which are likely to be important for implementation of rapid memory access techniques are described, and methods for creation, organization, and utilization of very large rule bases are considered.
References
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Journal ArticleDOI
Incidence angle and polarization dependence of light diffracted by acoustic surface waves
TL;DR: In this paper, a theoretical analysis of diffracting effects produced by ASW on light beams contained on the sagittal plane of the wave is presented, produced by periodical changes of the refractive index and by corrugation of the surface in cases of x and y ‐cut crystalline quartz and y −cut LiNbO3 for both states of polarization of the incident light.
Journal ArticleDOI
Surface‐wave acoustoelectric image scanner
TL;DR: In this paper, an optical image scanning method using the longitudinal acoustoelectric effect by surface waves in the coupled pSi/LiNbO3 system is described by means of the coupling between electrons in a weak inversion layer and surface waves.
Journal ArticleDOI
Image scanning by acousto-electro-optic interaction
Mauri Luukkala,Pekka Meriläinen +1 more
TL;DR: In this article, a method was described whereby optical images can be acoustically scanned by the sound reflections caused by the light on a photosensitive surface-wave delay line at 75 MHz.