Diffractive Optics And Its Applications In IR Systems

Wilfrid B. Veldkamp

doi:10.1117/12.939868

20 September 1987 Diffractive Optics And Its Applications In IR Systems

Wilfrid B. Veldkamp

Proceedings Volume 0750, Infrared Systems and Components; (1987) https://doi.org/10.1117/12.939868
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

We have produced highly efficient planar and binary optical elements such as lenses, beam profile shapers, beam multiplexers, and coherent laser beam adders. A binary relief pattern on these devices controls the phase and amplitude of transmitted or reflected wavefronts. To fabricate these devices, we bring together developments in EM binary grating theory, in high resolution E-beam lithography, and in reactive ion-beam etching techniques. We demonstrated this technology by producing diffraction-limited lenses on thin planar substrates with >96% diffraction efficiency. These lenses can be used in monochromatic and wideband FLIR telescopic applications. These devices are also useful as high-speed scanner elements, and play important roles in coherently adding laser beams from modular or monolithic laser arrays.

Citation Download Citation

Wilfrid B. Veldkamp "Diffractive Optics And Its Applications In IR Systems", Proc. SPIE 0750, Infrared Systems and Components, (20 September 1987); https://doi.org/10.1117/12.939868

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