EO polymer at cryogenic temperatures
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 1703-1705 |
Journal / Publication | Electronics Letters |
Volume | 52 |
Issue number | 20 |
Publication status | Published - 29 Sep 2016 |
Externally published | Yes |
Link(s)
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. et al.
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 › peer-review