Klappenberger, F. and Renk, Karl F. (2003) Transient-pulse nonlinear spectroscopy with the radiation of a multimode THz gas laser. INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 24 (9). pp. 1405-1414. ISSN 0195-9271
Full text not available from this repository.Abstract
We report on transient-pulse nonlinear spectroscopy with the radiation of a multimode THz gas laser. The method is demonstrated for studying the nonlinear response of a current-carrying superlattice to THz radiation; the current through a superlattice can be suppressed by a strong THz field. The method makes use of the pulses of a high power multimode THz gas laser. By splitting the laser beam for selected laser modes into a main beam and a reference beam we monitored with a reference detector the transient power in the main beam. The simultaneous measurement of both the instantaneous response and the instantaneous power allows to obtain the power dependence of the response within a single laser pulse. The method is suitable to study the nonlinear response of matter to THz radiation fields in a large dynamic range.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SEMICONDUCTOR SUPERLATTICES; GAAS/ALAS SUPERLATTICE; INTERSUBBAND LIFETIME; DYNAMIC LOCALIZATION; QUANTUM-WELLS; IONIZATION; OSCILLATOR; FIELD; far-infrared detection; multimode THz laser; nonlinear far-infrared spectroscopy |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Karl F. Renk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jul 2021 10:50 |
| Last Modified: | 29 Jul 2021 10:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38662 |
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