Stimulated emission in the long-wavelength IR region from hot holes in Ge in crossed electric and magnetic fields
Abstract
The observation of stimulated emission, in the long wavelength IR region, from p-Ge in electric and magnetic fields at transitions between the subbands of light and heavy holes is discussed. The IR light is detected by Ge:Ga and epitaxial GaAs detectors cooled to 4.2 K, and the measurements are taken in single electric-field pulses 1.5 microsec long. The results found with the two detectors and with some filters indicate that the stimulated emission occurs in the wavelength interval equal to 100-300 microns. Estimates based on the change in the resistance of the photodetectors caused by the light put the output power on the order of 10 W.
- Publication:
-
ZhETF Pisma Redaktsiiu
- Pub Date:
- July 1984
- Bibcode:
- 1984ZhPmR..40...69A
- Keywords:
-
- Crossed Fields;
- Germanium;
- Infrared Spectra;
- Laser Outputs;
- Photometers;
- Stimulated Emission;
- Electric Field Strength;
- Magnetic Flux;
- Spectral Energy Distribution;
- Wavelengths;
- Lasers and Masers