The electro-optic effect for intense terahertz pulses

Jamison, S.P. (2008) The electro-optic effect for intense terahertz pulses. Applied Physics B, 91 (2). pp. 241-247. ISSN 0946-2171

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Abstract

The χ(2) interaction between an intense terahertz (THz) pulse and a weak optical probe is addressed, and a general solution obtained for the situation of an undepleted THz wave. It is shown that the common description of a phase retardation proportional to the THz electric field strength breaks down in strong-field conditions, unless the THz field is suitably slowly varying. The solution is obtained from a consistent description of sum- and difference-frequency generation driven by the THz field, the input optical field, and all optical fields generated through the interaction itself. For an interaction between monochromatic THz and optical waves a minimum of four waves (three optical and one THz) need be considered in the weak-field limit; higher numbers of waves are needed at higher fields, with the extent of the required optical spectrum dependent on field strength, phase matching, and interaction length.

Item Type:
Journal Article
Journal or Publication Title:
Applied Physics B
Subjects:
ID Code:
125938
Deposited By:
Deposited On:
18 Jun 2018 08:48
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Mar 2020 11:25