Programmable coherent source arrays generated by spatial light modulators

Autor: J. T. Meyer, J. R. Wullert, Sarry F. Habiby, A. Marrakchi, Jay S. Patel
Rok vydání: 2010
Předmět:
Zdroj: Applied optics. 31(20)
ISSN: 1559-128X
Popis: Programmable coherent source arrays are generated by using addressable liquid-crystal spatial light modulators and two-dimensional arrays of Fresnel lenses. The modulators used are an optically addressed liquid-crystal light valve, a matrix-addressed pixelated display, and two devices that have individually addressable elements with specially designed patterned electrodes. One such device has a transparent electrode patterned as a Fresnel zone plate array; the other is a gate array used in a hybrid implementation with a Fresnel lens array etched on a glass substrate. The operation of devices that use binary-amplitude and binary-phase Fresnel lenses is described, identifying programmable features, resolution limits, and applications.
Databáze: OpenAIRE