High field p-Ge laser operation in permanent magnet assembly

    Authors

    C. J. Fredricksen; E. W. Nelson; A. V. Muravjov;R. E. Peale

    Abbreviated Journal Title

    Infrared Phys. Technol.

    Keywords

    far infrared; terahertz; laser; p-Ge; germanium; SmCo; NdFeB; permanent; magnet; GERMANIUM; Instruments & Instrumentation; Optics; Physics, Applied

    Abstract

    Operation of the far-infrared gallium-doped p-type germanium laser in the broadband range above 70 cm(-1), which requires relatively high magnetic fields, is demonstrated using novel permanent magnet assemblies. NdFeB and SmCo magnet assemblies were compared. The applied field from a NdFeB assembly was found to decrease strongly on cooling to the cryogenic temperature required for p-Ge laser operation, but that of a SmCo assembly changes insignificantly. (C) 2002 Elsevier Science B.V. All rights reserved.

    Journal Title

    Infrared Physics & Technology

    Volume

    44

    Issue/Number

    1

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    79

    Last Page

    84

    WOS Identifier

    WOS:000179218200011

    ISSN

    1350-4495

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