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Non-linear terahertz spectroscopy of accepters in p-Ge
Description
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.
Journal
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- 2011 International Conference on Infrared, Millimeter, and Terahertz Waves
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2011 International Conference on Infrared, Millimeter, and Terahertz Waves 1-2, 2011-10-01
IEEE