Title

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

Abstract

A p-Ge laser at 170-200 μm 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.

Publication Date

7-1-1996

Publication Title

IEEE Journal of Quantum Electronics

Volume

32

Issue

7

Number of Pages

1203-1210

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/3.517020

Socpus ID

0030194052 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0030194052

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