Open AccessNonlinear optical properties of calcium barium niobate epitaxial thin films
Author(s) -
Stéphane Bancelin,
Sébastien Vigne,
Nadir Hossain,
M. Chaker,
François Légaré
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.017497
Subject(s) - materials science , second harmonic generation , thin film , optics , barium , epitaxy , polarization (electrochemistry) , quartz , pulsed laser deposition , second harmonic imaging microscopy , signal (programming language) , fused quartz , optoelectronics , nonlinear optics , laser , layer (electronics) , chemistry , nanotechnology , physics , computer science , metallurgy , composite material , programming language
We investigate the potential of epitaxial calcium barium niobate (CBN) thin film grown by pulsed laser deposition for optical frequency conversion. Using second harmonic generation (SHG), we analyze the polarization response of the generated signal to determine the ratios d 15 / d 32 and d 33 / d 32 of the three independent components of the second-order nonlinear susceptibility tensor in CBN thin film. In addition, a detailed comparison to the signal intensity obtained in a y-cut quartz allows us to measure the absolute value of these components in CBN thin film: d 15 = 5 ± 2 pm / V, d 32 = 3.1 ± 0.6 pm / V and d 33 = 9 ± 2 pm / V.