Narrow linewidth intervalence-band emission from germanium terahertz lasers

Chamberlin, D. R.; Bründermann, E.; Haller, E. E.
July 2003
Applied Physics Letters;7/7/2003, Vol. 83 Issue 1, p3
Academic Journal
We demonstrate narrow linewidth emission from p-Ge terahertz lasers at low magnetic fields where intervalence-band emission dominates. The volume of these laser crystals is 32 mm[SUP3], which is one order of magnitude smaller than the lasers for which the emission spectrum has been measured previously. The frequencies emitted are shown to be selected by the optical cavity and do not shift with the magnetic field, as has been observed for larger laser crystals.


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