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Title: Optical limiting materials

Abstract

Methanofullerenes, fulleroids and/or other fullerenes chemically altered for enhanced solubility, in liquid solution, and in solid blends with transparent glass (SiO{sub 2}) gels or polymers, or semiconducting (conjugated) polymers, are shown to be useful as optical limiters (optical surge protectors). The nonlinear absorption is tunable such that the energy transmitted through such blends saturates at high input energy per pulse over a wide range of wavelengths from 400--1,100 nm by selecting the host material for its absorption wavelength and ability to transfer the absorbed energy into the optical limiting composition dissolved therein. This phenomenon should be generalizable to other compositions than substituted fullerenes. 5 figs.

Inventors:
; ; ; ; ; ; ; ; ;
Issue Date:
Research Org.:
Univ. of California (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
OSTI Identifier:
644436
Patent Number(s):
5741442
Application Number:
PAN: 8-499,888; CNN: Contract AFOSR-93-1-0191DEF
Assignee:
Univ. of California, Los Alamos, NM (United States)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 21 Apr 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; FULLERENES; OPTICAL PROPERTIES; LIGHT TRANSMISSION; ABSORPTIVITY; GLASS; GELS; POLYMERS; SEMICONDUCTOR MATERIALS

Citation Formats

McBranch, D W, Mattes, B R, Koskelo, A C, Heeger, A J, Robinson, J M, Smilowitz, L B, Klimov, V I, Cha, M, Sariciftci, N S, and Hummelen, J C. Optical limiting materials. United States: N. p., 1998. Web.
McBranch, D W, Mattes, B R, Koskelo, A C, Heeger, A J, Robinson, J M, Smilowitz, L B, Klimov, V I, Cha, M, Sariciftci, N S, & Hummelen, J C. Optical limiting materials. United States.
McBranch, D W, Mattes, B R, Koskelo, A C, Heeger, A J, Robinson, J M, Smilowitz, L B, Klimov, V I, Cha, M, Sariciftci, N S, and Hummelen, J C. Tue . "Optical limiting materials". United States.
@article{osti_644436,
title = {Optical limiting materials},
author = {McBranch, D W and Mattes, B R and Koskelo, A C and Heeger, A J and Robinson, J M and Smilowitz, L B and Klimov, V I and Cha, M and Sariciftci, N S and Hummelen, J C},
abstractNote = {Methanofullerenes, fulleroids and/or other fullerenes chemically altered for enhanced solubility, in liquid solution, and in solid blends with transparent glass (SiO{sub 2}) gels or polymers, or semiconducting (conjugated) polymers, are shown to be useful as optical limiters (optical surge protectors). The nonlinear absorption is tunable such that the energy transmitted through such blends saturates at high input energy per pulse over a wide range of wavelengths from 400--1,100 nm by selecting the host material for its absorption wavelength and ability to transfer the absorbed energy into the optical limiting composition dissolved therein. This phenomenon should be generalizable to other compositions than substituted fullerenes. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {4}
}