Combination gratings

Rene Staub; Wayne Robert Tompkin; Jean-Frederic Moser

doi:10.1117/12.239633

7 May 1996 Combination gratings

Rene Staub, Wayne Robert Tompkin, Jean-Frederic Moser

Proceedings Volume 2689, Diffractive and Holographic Optics Technology III; (1996) https://doi.org/10.1117/12.239633
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

A combination grating is the diffractive relief structure resulting from the superposition of at least two gratings. For the case of two combined gratings, whose individual profiles are described by function f₁ and f₂, the resultant surface relief profile is described by f₁ + f₂. Typical examples are crossed gratings. Experimental and theoretical results for different combination gratings are presented, including examples which cannot be produced using standard holographic or ruling techniques. The applications include diffractive optical variable devices, which are applied to documents as visual high-security features.

Citation Download Citation

Rene Staub, Wayne Robert Tompkin, and Jean-Frederic Moser "Combination gratings", Proc. SPIE 2689, Diffractive and Holographic Optics Technology III, (7 May 1996); https://doi.org/10.1117/12.239633

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