Title :
Non-linear terahertz spectroscopy of accepters in p-Ge
Author :
Mukai, Y. ; Nagai, M. ; Hirori, H. ; Tanaka, T. ; Tanaka, K.
Author_Institution :
Dept. of Phys., Kyoto Univ., Kyoto, Japan
Abstract :
We report on the field ionization process of accepters in p-Ge under intense terahertz (THz) electric field. Broadening of the accepter absorption lines followed by disappearance is observed below 10 kV/cm. In the strong field limit, one can see clearly Drude dispersion. This implies that the THz field ionization takes place quite faster than 1 ps.
Keywords :
absorption; dispersion (wave); field ionisation; germanium; terahertz spectroscopy; Drude dispersion; Ge; accepter absorption lines; field ionization process; nonlinear terahertz spectroscopy; terahertz field ionization; Absorption; Dispersion; Electric fields; Impurities; Ionization; Lithium niobate; Tunneling;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104938
