Title :
Femtosecond coherent control of THz spectra driven by free- and coupled electrons in gas plasma
Author :
Kosareva, Olga ; Shkurinov, Alexander ; See Leang Chin ; Xi-Cheng Zhang
Author_Institution :
Lomonosov Moscow State Univ., Moscow, Russia
Abstract :
We demonstrate in the experiment and simulations that interference between two contributions into the terahertz wave generation in a femtosecond filament, namely, the free electron photocurrent and the nonlinear polarization of neutrals, can be used for the femtosecond coherent control of the THz spectra.
Keywords :
air; high-speed optical techniques; nitrogen; photoconductivity; plasma diagnostics; plasma nonlinear processes; plasma production by laser; plasma simulation; plasma transport processes; terahertz wave spectra; N2; THz spectra; air; coupled electrons; femtosecond coherent control; femtosecond filament; free electron photocurrent; gas plasma; nitrogen; nonlinear polarization; terahertz wave generation; Educational institutions; Free electron lasers; Gas lasers; Laser theory; Photoconductivity; Plasmas; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665507
