Journal
LASER & PHOTONICS REVIEWS
Volume 1, Issue 4, Pages 349-368Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/lpor.200710025
Keywords
terahertz generation; plasma; four-wave rectification; pressure dependence; spectroscopy; femtosecond; carrier-envelope phase
Categories
Ask authors/readers for more resources
We review the generation of broadband THz radiation from femtosecond photo-induced gas plasmas, with an emphasis on the highly efficient AC-bias case where the plasma is generated and driven by a superposition of fundamental and second-harmonic optical fields. The dependence on experimental parameters such as pulse energy, air pressure, polarization and focusing are presented, and compared to the predictions from semi-quantitative models for the THz generation process, namely (i) a microscopic photocurrent model and (ii) a four-wave mixing model. We also employ these models to the case of few-cycle pulses, where the observed THz emission is related directly to the carrier-envelope phase of the pulses, and hence provides a mechanism with which to measure this phase.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available