Title

Submillimeter P-Ge Laser Using A Voigt-Configured Permanent Magnet

Authors

Authors

K. Park; R. E. Peale; H. Weidner;J. J. Kim

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE J. Quantum Electron.

Keywords

FAR-INFRARED LASER; HOT HOLES; OSCILLATION; GERMANIUM; RADIATION; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

A p-Ge laser at 170-200 mu m wavelengths in Voigt configuration using a regular permanent magnet is reported. Results are compared with those obtained using a Faraday-configured superconducting magnet. Emission is observed over a wider range of electric-field magnitude in Voigt configuration at a given magnetic field. Time-resolved emission studies reveal unusual pulse dynamics which depend on the magnitude and duration of the applied electric field. Spectral content, Gaussian-beam profiles, and polarization are essentially independent of these temporal effects. A significant repetition-rate increase is found using copper heat sinks. An increased emission-pulse delay with increasing initial-sample temperature and the temperature independence of the emission quench time are both explained by Joule heating of the laser medium, Lasing persists above 10 K, raising the possibility of a practical p-Ge laser without need for liquid helium as a coolant.

Journal Title

Ieee Journal of Quantum Electronics

Volume

32

Issue/Number

7

Publication Date

1-1-1996

Document Type

Article

Language

English

First Page

1203

Last Page

1210

WOS Identifier

WOS:A1996UT42700012

ISSN

0018-9197

Share

COinS