EO polymer at cryogenic temperatures

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1703-1705
Journal / PublicationElectronics Letters
Volume52
Issue number20
Publication statusPublished - 29 Sep 2016
Externally publishedYes

Abstract

Electro-optic (EO) properties at 7 K of a guest-host type nonlinear poled polymer system consisting of AJLZ53 chromophores in an amorphous polycarbonate host are reported for the first time. A modi-fied attenuated total reflection method that takes into account multilayer structure is used to accurately characterise linear and nonlinear optical properties. At the telecommunication wavelength of 1550 nm, <10% drop of the EO coefficient r33 at 7 K is observed compared with that at 300 K, while n3r33 only decreases <5% because of increased anisotropic indices of refraction at low temperatures. This decrease of the r33 at 7 K indicates that the EO activity of nonlinear polymers at room temperatures is not of pure electronic origin because of vibrational mode contributions to the first-order hyperpolarisability.

Citation Format(s)

EO polymer at cryogenic temperatures. / Park, D.H.; Yun, V.; Luo, J.; Jen, A.K.-Y.; Herman, W.N.

In: Electronics Letters, Vol. 52, No. 20, 29.09.2016, p. 1703-1705.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal