Terahertz Kerr effect

Matthias C. Hoffmann, Nathaniel C. Brandt, Harold Y. Hwang, Ka Lo Yeh, Keith A. Nelson

Research output: Contribution to journalArticlepeer-review

108 Scopus citations


We have observed optical birefringence in liquids induced by single-cycle terahertz pulses with field strengths exceeding 100 kV/cm. The induced change in polarization is proportional to the square of the terahertz electric field. The time-dependent terahertz Kerr signal is composed of a fast electronic response that follows the individual cycles of the electric field and a slow exponential response associated with molecular orientation.

Original languageEnglish (US)
Article number231105
JournalApplied Physics Letters
Issue number23
StatePublished - 2009

Bibliographical note

Funding Information:
This work was supported in part by ONR Grant. No. .

Copyright 2010 Elsevier B.V., All rights reserved.

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