Patent · US Expired

Film comprising unimolecular layers

US4970120A · kind A · utility

9Cited by

2References

4Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Andre Laschewsky · Koblenz, DE
Helmut Ringsdorf · Mainz, DE
Werner Interthal · Gerolzhofen, DE
Donald Lupo · Frankfurt am Main, DE
Werner Prass · Mainz, DE
Ude Sheunemann · Frankfurt am Main, DE

Key dates

Filing date	Jul 14, 1988
Grant date	Nov 13, 1990
Priority date	—
Expiry date	Jul 14, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31935
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Film comprising at least one unimolecular layer. A film for use in nonlinear optics comprises at least one Langmuir-Blodgett layer, the layer containing or comprising a dye of the formula ##STR1## in which R.sup.1 denotes a long-chain alkoxy, acyloxy, alkylamino or acylamino group. In particular when the film contains alternating layers of unsaturated amphiphilic compounds, it produces a stable multilayer having good monlinear optical properties and is suitable, for example, for electrooptical switches, diode laser frequency amplifiers or optical parametric amplifiers. Besides the dye indicated, the unimolecular layer can additionally contain at least one second amphiphilic compound. In this case, the unimolecular layer comprises amphiphilic compounds.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.