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http://hdl.handle.net/2289/4754
Title: | Large third-Order nonlinearity of new π-conjugated donor-acceptor polymers with substituted Thiophene and 1,3,4-Oxadiazole moieties |
Authors: | Sunitha, M.S. Adhikari, A.V. Vishnumurthy, K.A. Safakath, K. Philip, Reji |
Keywords: | conjugated polymer electrochemical properties optical materials oxadiazole thiophene-based polymer |
Issue Date: | May-2012 |
Publisher: | Taylor & Francis |
Citation: | International Journal of Polymeric Materials, 2012, Vol.61, p483 |
Abstract: | We present the synthesis of two newly designed, thiophene-based conjugated polymers (P1 and P2) carrying 1,3,4-oxadiazole, 3,4-dinaphthyloxy thiophene, and 3,4-dialkoxy thiophene moieties as potential NLO active materials. Their NLO properties have been investigated both by the Z-scan and degenerate four-wave mixing (DFWM) techniques using 532 nm, 7 nanosecond laser pulses. The measured β and χ(3) values for the polymers are found to be in the range of 10−11 m/W and 10−11 esu, respectively. The results indicate that they exhibit good optical-limiting behavior and are promising materials for nonlinear optical applications due to effective two-photon absorption (TPA). |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/4754 |
ISSN: | 0091-4037 1563-535X (online) |
Alternative Location: | http://dx.doi.org/10.1080/00914037.2011.593062 |
Copyright: | 2012 Taylor & Francis |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
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2012_IJPM_61_483.pdf Restricted Access | Restricted Access | 1.06 MB | Adobe PDF | View/Open Request a copy |
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