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Proceedings Paper

Diffractive optical systems adapted for outer space operation
Author(s): Boris I. Constantinov; Teodosie I. Pasechnic; Sergiu Sircu
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Paper Abstract

Present paper considers a technique of diffraction element microminiaturization in the process of optical data recording onto photothermoplastic films (PTPFs) by using the photothermoplastic recording (PTPR) equipment adapted for outer space. It has been found that the application of surface- active substances (SAS) onto the free surface of PTPF facilitates the appearance and evolution of microdiffraction optical systems (whose period doesn't exceed 1 micrometers ) on the profile of basic diffraction elements (with a period <5 μm). Miniature dimensions of microdiffraction elements provide high resolution without loss in diffraction efficiency, as the dimensions, shape (depth) of a diffraction element actually depend not only on the thickness of the visualizing layer but also on SAS properties, namely on the dielectric and physical- chemical properties and, particularly, on the ability of SAS to influence onto the surface tension. The shift in the flow point of the visualizing layer material provides the increase both in the diffraction efficiency and resolution at the expense of discretization of the surface diffraction elements into 2,4,6,... microdiffraction elements.

Paper Details

Date Published: 24 October 2000
PDF: 9 pages
Proc. SPIE 4093, Current Developments in Lens Design and Optical Systems Engineering, (24 October 2000); doi: 10.1117/12.405211
Show Author Affiliations
Boris I. Constantinov, State Univ. of Moldova (Moldova)
Teodosie I. Pasechnic, State Univ. of Moldova (Moldova)
Sergiu Sircu, Technical College of Moldova (Moldova)


Published in SPIE Proceedings Vol. 4093:
Current Developments in Lens Design and Optical Systems Engineering
Robert E. Fischer; Robert E. Fischer; R. Barry Johnson; Warren J. Smith; Warren J. Smith; William H. Swantner, Editor(s)

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