NDLI: Surphex (tm): new dry photopolymers for replication of surface relief diffractive optics

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Surphex (tm): new dry photopolymers for replication of surface relief diffractive optics

Content Provider	NASA Technical Reports Server (NTRS)
Author	Shvartsman, Felix P.
Copyright Year	1993
Description	High efficiency, deep groove, surface relief Diffractive Optical Elements (DOE) with various optical functions can be recorded in a photoresist using conventional interferometric holographic and computer generated photolithographic recording techniques. While photoresist recording media are satisfactory for recording individual surface relief DOE, a reliable and precise method is needed to replicate these diffractive microstructures to maintain the high aspect ratio in each replicated DOE. The term 'high aspect ratio' means that the depth of a groove is substantially greater, i.e. 2, 3, or more times greater, than the width of the groove. A new family of dry photopolymers SURPHEX was developed recently at Du Pont to replicate such highly efficient, deep groove DOE's. SURPHEX photopolymers are being utilized in Du Pont's proprietary Dry Photopolymer Embossing (DPE) technology to replicate with very high degree of precision almost any type of surface relief DOE. Surfaces relief microstructures with width/depth aspect ratio of 1:20 (0.1 micron/2.0 micron) were faithfully replicated by DPE technology. Several types of plastic and glass/quartz optical substrates can be used for economical replication of DOE.
File Size	694327
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940012885
Archival Resource Key	ark:/13960/t2k69d53r
Language	English
Publisher Date	1993-08-01
Access Restriction	Open
Subject Keyword	Optics Diffraction Embossing Holography Grooves Optical Equipment Polymers Photolithography Microstructure Photopolymers Interferometry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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