Layer element having a plurality of monomolecular layers

Details Layer element having a plurality of monomolecular layers Layer element having a plurality of monomolecular layers

1993-08-17

1995-03-28

Lee, John D.

Optical: systems and elements

Optical frequency converter

252582, 428507, G02F 135

Patent

active

054022622

ABSTRACT:
A layer element comprises a plurality of monomolecular layers in a regular and alternating arrangement ABABAB . . . on a substrate, wherein A is a layer of a dye whose chromophore has a donor-acceptor structure and B is a layer of cellulose whose hydroxyl groups are at least partly substituted by the radical ##STR1## where R.sup.1 and R.sup.2 are each independently of the other an alkyl radical of from 1 to 4 carbon atoms and R.sup.3 is an alkyl radical of from 1 to 18 carbon atoms or phenyl, tolyl or benzyl. It is useful for nonlinear optics.

REFERENCES:
patent: 4539061 (1985-09-01), Sagiv
patent: 4792208 (1988-12-01), Ulman et al.
patent: 5034227 (1991-07-01), Nickel
Advanced Materials (1991) vol. 3, No. 1, "Amphiphilic Dyes for Nonlinear Optics: Dependence of Second Harmonic Generation on Functional Group Substitution", pp. 54-58, (no month) Bubeck et al.
Derwent Abstract No. JP 1125219 A. (May 1989).
Thin Solid Films, 133, "Monomolecular and Multimolecular Films of Cellulose Esters with Various Alkyl Chains", pp. 29-38, Kawaguchi et al, Nov. 1985.

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