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Optics Letters

Optics Letters


  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1158–1160

Ultrahigh sensitivity electric field detection with a liquid electro-optical film

Ru-Long Jin, Han Yang, Yan-Hao Yu, Di Zhao, Jia Yao, Feng Zhu, Qi-Dai Chen, Mao-Bin Yi, and Hong-Bo Sun  »View Author Affiliations

Optics Letters, Vol. 36, Issue 7, pp. 1158-1160 (2011)

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In this Letter, an electro-optical probe configuration with polar molecule liquids as the sensing film is proposed to improve the voltage sensitivity. This method exhibited increases in intrinsic sensitivities better than 0.1 mV / Hz , 2 orders of magnitude larger than the normal method using a GaAs probe in the same measurement system. Based on the mechanism of orientation polarization, the electro-optic coefficient was measured to be 250 pm / V by the Teng–Man method at a modulation field of 100 Hz . This technology will be promising in applications of low-frequency field detection.

© 2011 Optical Society of America

OCIS Codes
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(190.3270) Nonlinear optics : Kerr effect
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Nonlinear Optics

Original Manuscript: January 24, 2011
Manuscript Accepted: February 21, 2011
Published: March 25, 2011

Ru-Long Jin, Han Yang, Yan-Hao Yu, Di Zhao, Jia Yao, Feng Zhu, Qi-Dai Chen, Mao-Bin Yi, and Hong-Bo Sun, "Ultrahigh sensitivity electric field detection with a liquid electro-optical film," Opt. Lett. 36, 1158-1160 (2011)

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