High-speed all-optical terahertz polarization switching by a transient plasma phase modulator

Haidan Wen; Daranciang, Dan; Lindenberg, Aaron M.
April 2010
Applied Physics Letters;4/19/2010, Vol. 96 Issue 16, p161103
Academic Journal
We demonstrate high-speed all-optical polarization switching of broadband terahertz frequency electromagnetic fields with subpicosecond switch-on time. This is achieved through the use of a two-plasma configuration in an orthogonal geometry in which one plasma modulates the relative phase of a two-color optical pump field, enabling rapid terahertz polarization modulation at rates limited by the repetition-rate of the control pulse.


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