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Please use this identifier to cite or link to this item: http://purl.org/purl/2605

Title: Nanosecond optical limiting response of sandwich-type neodymium dyphthalocyanine in a co-polymer host
Authors: Aneeshkumar, B
Pramod, Gopinath
Jayan,Thomas
Vallabhan, C P G
Nampoori, V P N
Radhakrishnan, P
Technology
Keywords: Optical limiting
Phthaloeyanines
Polymer host
Laser damage threshold
Issue Date: Jun-2004
Publisher: Elsevier
Abstract: The nanosecond optical limiting characteristics of sandwich-type neodymium diphthalocyanine in a co-polymer matrix of polymethyl methacrylate (PMMA) and methyl-2-cyanoacrylate have been studied for the first time. The measurements were performed using 9 ns laser pulses generated from a frequency-doubled Nd:YAG laser at 532 nm wavelength. The optical limiting performance of neodymium diphthalocyanine in co-polymer host was studied at different linear transmission. Laser damage threshold was also measured for the doped and undoped co-polymer samples. The optical limiting response is attributed to reverse saturable absorption which is due to excited-state absorption.
URI: http://dyuthi.cusat.ac.in/purl/2605
ISSN: 0379-6779
Appears in Collections:Dr. V P N Nampoori

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