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Enhancement of optical limiting response by embedding gallium phthalocyanine into polymer host

Paper ID Volume ID Publish Year Pages File Format Full-Text
29293 44143 2007 4 PDF Available
Title
Enhancement of optical limiting response by embedding gallium phthalocyanine into polymer host
Abstract

The need for materials to protect optical sensors from intense laser has resulted in intense research into passive phthalocyanine (Pc)-based non-linear optical (NLO) materials. The majority of optical limiting research is mainly focused on solution based studies over the past several decades, with fewer reports investigating passive solid-state non-linear optical devices. In this study, gallium phthalocyanine monomer (tBu4PcGaCl) and its μ-oxo-bridged dimer ([tBu4PcGa]2O) were embedded into a commercially available polymer poly(methylmethlacrylate) (PMMA) to produce composite films acting as passive solid-state optical limiters. The results show that Pc/PMMA composite display much larger non-linear absorption coefficient and lower saturable fluence for optical limiting when compared to the same Pc molecules in solution. No evidence of film fatigue or degradation was observed in the Pc/PMMA film after numerous scans at varying laser intensity.

Graphical abstractPc/PMMA composite devices displayed a larger non-linear absorption coefficient and a lower saturable fluence for optical limiting.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Nitrogen heterocycles; Gallium; Non-linear optics; Phthalocyanines composites; Solid-state optical limiters
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Enhancement of optical limiting response by embedding gallium phthalocyanine into polymer host
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 189, Issues 2–3, 25 June 2007, Pages 414–417
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us