Permanent light-induced polar orientation via all-optical poling and photothermal cross-linking in a polymer thin film

An epoxy-based crosslinkable polymer functionalized with nonlinear optical (NLO) photochromic dye known as Red Acid Magly was polarly oriented via thermally-assisted all-optical poling to enhance the photostability of the induced order. During the writing (seeding) process the film was cross-linked...

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Bibliographic Details
Published in:Optics communications 2006-04, Vol.260 (2), p.708-711
Main Authors: Apostoluk, A., Nunzi, J.-M., Boucher, V., Essahlaoui, A., Seveno, R., Gundel, H.W., Monnereau, C., Blart, E., Odobel, F.
Format: Article
Language:English
Subjects:
All-optical poling
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Frequency conversion
harmonic generation, including high-order harmonic generation
Fundamental areas of phenomenology (including applications)
Lasers
Nonlinear optics
Optics
Orientation relaxation
Physics
Second harmonic generation
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Summary:An epoxy-based crosslinkable polymer functionalized with nonlinear optical (NLO) photochromic dye known as Red Acid Magly was polarly oriented via thermally-assisted all-optical poling to enhance the photostability of the induced order. During the writing (seeding) process the film was cross-linked by heating with a hot-plate and irradiated simultaneously by the coherent superposition of the 1.06μm fundamental and 0.532μm second harmonic beams of a nanosecond pulsed Nd:YAG laser. We demonstrate that crosslinking between the polymer matrix and the pendant chromophore groups induced during the thermally-assisted all-optical poling procedure results in a stable light-induced second order susceptibility.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2005.11.026