Title

Intermittent curing and its effect on pulsed laser-induced photopolymerization

Authors

Authors

X. Sun; D. Yin; H. Dai; J. Liu; R. Lu;S. T. Wu

Comments

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Abbreviated Journal Title

Appl. Phys. B-Lasers Opt.

Keywords

DISPERSED LIQUID-CRYSTALS; HOLOGRAM FORMATION; POLYMER; GRATINGS; SLICES; MODEL; Optics; Physics, Applied

Abstract

Different intermittent curing methods were conducted for pulsed laser induced photopolymerization reactions in a TMPTA acrylic system. Two methods of curing were compared, named grouped pulses impingement (GPI) and consecutively pulsed curing (CPC), respectively, in which the total number of the curing pulses were kept same. In GPI, a prominent light diffraction effect was observed in the post curing process, but was absent in the CPC procedure. A condensed but limited sized core of polymeric structure was the cause of the light diffraction. The amount of inhomogeneity in the refractive index for the core was about 90% of the cured background. Simulations based on Fresnel diffraction theory were performed, and the result was in good agreement with the experimental observations.

Journal Title

Applied Physics B-Lasers and Optics

Volume

92

Issue/Number

1

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

93

Last Page

98

WOS Identifier

WOS:000256908600018

ISSN

0946-2171

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