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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 29131–29136

Pyroelectric effect in green light-assisted domain reversal of Mg-doped LiNbO3 crystals

Shoujun Zheng, Yongfa Kong, Hongde Liu, Shaolin Chen, Ling Zhang, Shiguo Liu, and Jingjun Xu  »View Author Affiliations

Optics Express, Vol. 20, Issue 27, pp. 29131-29136 (2012)

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We developed a real-time imaging system to probe the light-assisted domain reversal process of Mg-doped LiNbO3. An interesting phenomenon was observed where the domain appeared to reverse just after the laser was obscured. An exclusive electric field of about 350 V/mm was measured at 532 nm of light irradiation at an intensity of 6.6 × 104 W/cm2. The exclusive electric field was considered to be produced by a pyroelectric effect owing to a temperature change in the region of irradiation. The temperature change in the light-irradiated region was calculated to be about 2.3°C. Our experimental results indicate that a change of the electric field caused by the pyroelectric effect may play a significant role when LiNbO3 or other ferroelectric crystals are used under strong light.

© 2012 OSA

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(160.3730) Materials : Lithium niobate

ToC Category:

Original Manuscript: October 26, 2012
Revised Manuscript: December 1, 2012
Manuscript Accepted: December 2, 2012
Published: December 14, 2012

Shoujun Zheng, Yongfa Kong, Hongde Liu, Shaolin Chen, Ling Zhang, Shiguo Liu, and Jingjun Xu, "Pyroelectric effect in green light-assisted domain reversal of Mg-doped LiNbO3 crystals," Opt. Express 20, 29131-29136 (2012)

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