Diffractive optic elements for forming scanning beams

Emanuel Marom; David Mendlovic; Naim Konforti; Joseph Katz; Chinh Tan

doi:10.1117/12.274441

15 May 1997 Diffractive optic elements for forming scanning beams

Emanuel Marom, David Mendlovic, Naim Konforti, Joseph Katz, Chinh Tan

Proceedings Volume 3010, Diffractive and Holographic Device Technologies and Applications IV; (1997) https://doi.org/10.1117/12.274441
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

A novel approach for designing quasi non-diffracting beams is presented. When using these beams for scanning images, the resulting signals have low contrast levels that are maintained over distances far exceeding depth-of-focus distances obtainable with Gaussian beams. A system using two phase-only diffractive optics filters separated by a free space region is sufficient to generate such beams. Gerchberg-Saxton algorithms are applied for determining the phase functions necessary for transforming the input laser beam into the desired beam distribution. The characteristics of the beams are presented.

Citation Download Citation

Emanuel Marom, David Mendlovic, Naim Konforti, Joseph Katz, and Chinh Tan "Diffractive optic elements for forming scanning beams", Proc. SPIE 3010, Diffractive and Holographic Device Technologies and Applications IV, (15 May 1997); https://doi.org/10.1117/12.274441

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