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Proceedings Paper

Optical properties of (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 single crystals
Author(s): Chongjun He; Huiling Hu; Hong Jia; Jiming Wang; Kongjun Zhu; Youwen Liu
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Paper Abstract

Optical properties of (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (PZN-xPT, x=5%, 9% and 12%) single crystals have been comprehensively investigated. The PZN-xPT single crystals used in this study were grown using a high temperature flux method. Refractive indices (nij) were measured by the Brewster’s angles (θB=tan-1n) at different wavelengths. Dispersion equations of refractive indices were obtained. After poled along [001] direction, the transmittance of PZN–12%PT single crystal is more than 65% from 0.5 to 5.8 μm, which is much higher than that of PZN–5%PT and PZN-9%PT single crystals. PZN–12%PT has a tetragonal phase, its spontaneous polarization PS is along [001] direction. After poling, it could form a single domain structure. Orientation and temperature dependences of the electro-optic coefficient were investigated at He-Ne laser by the Senarmont compensator method. Large effective electro-optic coefficient (γc = 430 pm/V) was observed in [001]-poled PZN-9%PT crystal. More importantly, γc of tetragonal PZN-12%PT is about 130 pm/V, which is almost unchanged in a temperature range -20~80 °C. The γc of PZN-xPT single crystals are much higher than that of widely used electro-optic crystal LiNbO3 (γc = 20 pm/V). These excellent optical properties make the PZNxPT single crystals promising candidates for electro-optic modulation applications.

Paper Details

Date Published: 24 October 2014
PDF: 5 pages
Proc. SPIE 9270, Optoelectronic Devices and Integration V, 92701A (24 October 2014); doi: 10.1117/12.2085085
Show Author Affiliations
Chongjun He, Nanjing Univ. of Aeronautics and Astronautics (China)
Huiling Hu, Nanjing Univ. of Aeronautics and Astronautics (China)
Hong Jia, Suihua Univ. (China)
Jiming Wang, Nanjing Univ. of Aeronautics and Astronautics (China)
Kongjun Zhu, Nanjing Univ. of Aeronautics and Astronautics (China)
Youwen Liu, Nanjing Univ. of Aeronautics and Astronautics (China)

Published in SPIE Proceedings Vol. 9270:
Optoelectronic Devices and Integration V
Xuping Zhang; Hai Ming; Changyuan Yu, Editor(s)

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