| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1538880 | Optics Communications | 2009 | 5 Pages |
Abstract
We diagnosed the polarization characteristics of Terahertz emission from a two-color femtosecond laser filament when the polarizations of ω and 2ω beams are orthogonal. We discovered that the THz pulse is elliptically polarized. The generation mechanism could be through four-wave optical rectification inside the filament zone where the inversion symmetry of air is broken.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yanping Chen, Claude Marceau, Simon Génier, Francis Théberge, Marc Châteauneuf, Jacques Dubois, See Leang Chin,