International Journal of Terahertz Science and Technology
  TST >> Vol.3, No.1, March 2010: PP. 21-25
 

The THz Kerr Effect in Liquids and Ferroelectric Crystals

Matthias C. Hoffmann, Harold Y. Hwang, Ka-Lo Yeh, Nathaniel C. Brandt, Keith A. Nelson *
Massachusetts Institute of Technology, Department of Chemistry
77 Massachusetts Ave., Cambridge, MA 02139, USA
* Email: kanelson@mit.edu

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Abstract: We have observed THz-pulse-induced optical birefringence in liquids and ferroelectric crystals. The polarization modulation is dependent on the square of the applied THz pump field which may exceed 100 kV/cm levels. As in many all-optical Kerr effect measurements, there is a fast electronic response which may be followed by a slower reorientational response. The electronic response may be used to map out the intensity profile of the THz pulse. THz Kerr effect measurements may enable study of dipole dynamics in relaxor ferroelectric crystals.

Keywords: Terahertz Spectroscopy, Kerr Effect, Nonlinear spectroscopy, Molecular reorientation.

Published: 2010-3-30

Cite this article:
Matthias C. Hoffmann, Harold Y. Hwang, Ka-Lo Yeh, Nathaniel C. Brandt, Keith A. Nelson. The THz Kerr Effect in Liquids and Ferroelectric Crystals[J]. International Journal of Terahertz Science and Technology, 2010, Vol.3, No.1: 21-25.  DOI:10.11906/TST.021-025.2010.03.02

URL: http://www.tstnetwork.org/10.11906/TST.021-025.2010.03.02

 

 
 

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