Dyuthi @ CUSAT >
e-SCHOLARSHIP >
Photonics >
Faculty >
Dr.C P Girijavallabhan >
Please use this identifier to cite or link to this item:
http://purl.org/purl/2410
|
Title: | Degenerate four wave mixing in some metal phthalocyanines and naphthalocyanines |
Authors: | Unnikrishnan, K P Jayan,Thomas Nampoori, V P N Vallabhan, C P G Technology |
Keywords: | phthalocyanines naphthalocyanines |
Issue Date: | Jun-2002 |
Publisher: | Elsevier |
Abstract: | Here we report measurements of third-order susceptibility χ(3), figure of merit F defined as χ(3)/α (where α is the absorption coefficient) and second hyperpolarizability 〈γ〉 of some metal substituted phthalocyanines and a naphthalocyanine in solutions of dimethyl formamide using degenerate four wave mixing at 532 nm under nanosecond excitation. It was found that among samples investigated, bis-naphthalocyanine possessed the highest value of 〈γ〉 followed by the bis-phthalocyanine. This observation is explained on the basis that bis-naphthalocyanine followed by bis-phthalocyanine has higher degree of π electron conjugation. |
URI: | http://dyuthi.cusat.ac.in/purl/2410 |
ISSN: | 0301-0104 |
Appears in Collections: | Dr.C P Girijavallabhan
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|