Wavefront analysis and design through the diffraction of a chirped binary grating--the fast polarization case

Yon-Lin Kok

doi:10.1117/12.165686

15 December 1993 Wavefront analysis and design through the diffraction of a chirped binary grating: the fast polarization case

Yon-Lin Kok

Author Affiliations +

Proceedings Volume 1992, Miniature and Micro-Optics and Micromechanics; (1993) https://doi.org/10.1117/12.165686
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

An exact model for chirped binary gratings is introduced together with an analytic solution applicable in the electromagnetic regime. The solution employs a multiple scattering matrix formulation and boundary value problem techniques to determine the scattering coefficients of the diffracted fields, which in turn leads to an iterative algorithm for grating designs. Numerical examples on the design of a binary grating lens operating in the near-field are presented with computer simulations. It shows that under oblique plane wave illumination more than 90 percent of the diffracted power can be focused into a narrow beam of one wavelength in beamwidth over the image plane which is located only 12 wavelengths away from the grating plane.

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Yon-Lin Kok "Wavefront analysis and design through the diffraction of a chirped binary grating: the fast polarization case", Proc. SPIE 1992, Miniature and Micro-Optics and Micromechanics, (15 December 1993); https://doi.org/10.1117/12.165686

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