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Design of DOEs for separating and focusing radiation of different wavelengths
L.L. Doskolovich
Image Processing Systems Institute of RAS

 PDF, 2551 kB

Pages: 16-24.

Full text of article: Russian language.

Abstract:
Numerous works [1-3] are devoted to the design of diffractive optical elements (DOEs) for transforming wavefronts and focusing coherent radiation into a target area. As a rule, the DOE microrelief is designed for one particular wavelength. Color separation phase diffraction gratings are used to work with various spectral components, these gratings allow to separate three different spectral components of the illuminating beam into the diffraction orders -1, 0 and 1 [4-6].
This article proposes a method for the design of “spectral” phase DOEs combining color separation gratings. The proposed DOEs allow to: 1) focus three different spectral components of the illuminating beam into three identical focal areas, 2) change the focusing area configuration when the wavelength changes (for three different wavelengths) .

Citation:
Doskolovich L.L. Design of DOEs for separating and focusing radiation of different wavelengths. Computer Optics 1998; 18: 16-24.

References:

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