Title :
Dynamic response of the 2Ag state in nanopolyacetylene on the time scale from femtoseconds to milliseconds
Author :
Knize, Randall J. ; Zhdanov, B.V. ; Golovnin, I.V. ; Paraschuk, D.Yu. ; Pan, X.Y. ; Chigarev, N.V. ; Kobranskii, V.M.
Author_Institution :
Laser Opt. & Res. Center, US Air Force Acad., Colorado Springs, CO, USA
Abstract :
Summary form only given. Nanopolyacetylene (nano-(CH)/sub x/) is a /spl pi/ conjugated material in which 10-nm polyacetylene nanoparticles are dispersed in a polyvinylbutyral matrix. Each nanoparticle comprises of packed /spl pi/-conjugated chains of length about 30 double bond (C=C). The absorption spectrum of nano-(CH)/sub x/ has a well-resolved vibronic structure with the zero-phonon line at 1.7 eV. Nano-(CH)/sub x/ has a excellent long-term stability and reveals no symptoms of photooxidization. We present results obtained on nonoriented films of trans-cis blend of nano-(CH)/sub x/ at 300 K.
Keywords :
high-speed optical techniques; nanostructured materials; polymer blends; polymer films; /spl pi/-conjugated material; 2Ag state; absorption spectrum; dynamic response; nanopolyacetylene; nonoriented film; photo-oxidization; polyvinylbutyral matrix; stability; trans-cis blend; vibronic structure; zero-phonon line; Absorption; Ambient intelligence; Frequency; Gas lasers; Polarization; Probes; Slabs; Solid lasers; TV; Thermal conductivity;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.906711
