An Investigation into the Role of Capping on Second Harmonic Generation from Nonlinear Organic Polymer and Guest-Host Thin Films by In-Situ Poling

Ushasree, P.M.; Szablewski, M.

doi:10.4236/opj.2016.65013

An Investigation into the Role of Capping on Second Harmonic Generation from Nonlinear Organic Polymer and Guest-Host Thin Films by In-Situ Poling

Ushasree, P.M.; Szablewski, M.

Authors

P.M. Ushasree

Professor Marek Szablewski marek.szablewski@durham.ac.uk
Professor

Abstract

In attempts to fabricate thermally stable second-order nonlinear polymer thin films, we have investigated the second harmonic generation (SHG) from both nonlinear polymer and guest-host thin films. We have also investigated the role of capping on the SHG, temporal stability and relaxation of dipole alignment. Corona poling techniques were employed to orient the dopants into the noncentrosymmetric structure required to obtain the SHG. The effect of capping with a polymeric encapsulant below the glass transition temperature of the polymers on the unpoled and corona poled thin films was studied. Capping of the nonlinear polymer and guest host thin films have resulted in high SHG with good temporal stability. SHG signal falls drastically during the first 8 days after poling while no further significant decay in SHG signal was observed after about 33 days. Our investigations have identified the characteristics required for a good encapsulant on a non-con-ductive surface.

Citation

Ushasree, P., & Szablewski, M. (2016). An Investigation into the Role of Capping on Second Harmonic Generation from Nonlinear Organic Polymer and Guest-Host Thin Films by In-Situ Poling. Optics and Photonics Journal, 6(5), 101-111. https://doi.org/10.4236/opj.2016.65013

Journal Article Type	Article
Acceptance Date	May 28, 2016
Online Publication Date	May 31, 2016
Publication Date	May 31, 2016
Deposit Date	Jun 3, 2016
Publicly Available Date	Jun 3, 2016
Journal	Optics and Photonics Journal
Print ISSN	2160-8881
Electronic ISSN	2160-889X
Publisher	Scientific Research Publishing
Peer Reviewed	Peer Reviewed
Volume	6
Issue	5
Pages	101-111
DOI	https://doi.org/10.4236/opj.2016.65013

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Copyright © 2016 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY).
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