Paper
12 October 1994 Development of surface relief diffractive structures in photoresist: analogy between its mathematical model and geometrical optics
Ivo Aubrecht, Miroslav Miler
Author Affiliations +
Proceedings Volume 2169, Nonconventional Optical Imaging Elements; (1994) https://doi.org/10.1117/12.190230
Event: International Colloquium on Nonconventional Optical Imaging Elements, 1993, Rydzyna-Rokosowo, Poland
Abstract
In this paper, a close analogy between the theoretical model of forming the profile of a diffractive relief structure in photoresist during development and equations of geometrical optics is shown. It is used for the investigation of evolution of the grating profile arising in a positive photoresist layer which was exposed to the interference field of two laser beams. Verification of theoretical conclusions is based on comparison of theoretical and experimental time dependences of diffraction efficiencies of many orders during development. A SEM photography of the relief of a produced grating sample is presented as well. A short section is devoted to diffraction properties of the structures under study with emphasis on their possible applicability to multiple beam splitting.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ivo Aubrecht and Miroslav Miler "Development of surface relief diffractive structures in photoresist: analogy between its mathematical model and geometrical optics", Proc. SPIE 2169, Nonconventional Optical Imaging Elements, (12 October 1994); https://doi.org/10.1117/12.190230
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KEYWORDS
Diffraction

Photoresist developing

Photoresist materials

Diffraction gratings

Geometrical optics

Modulation

Holography

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