Spectral condensation near an impurity absorption line in a germanium-hot-hole laser
Murav'ev A. V. , Pavlov S. G., Orlova E. E. , Shastin V. N. , Andreev B. A.
The output spectrum of a long-wave IR laser operating on intersubband transitions of hot holes in p-type Ge has been measured. The impurity absorption spectrum in an active sample has also been measured. It is concluded from the results that there is a "condensation" of the output spectrum of a p-Gc laser near an absorption line corresponding to a transition from the ground state of a shallow acceptor to the first excited state. © 1995 American Institute of Physics.
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![](/ps/1198/article_18077_800_head.png "The output spectrum of a long-wave IR laser operating on intersubband transitions of hot holes in p-type Ge has been measured. The impurity absorption spectrum in an active sample has also been measured. It is concluded from the results that there is a "condensation" of the output spectrum of a <i>p-Gc</i> laser near an absorption line corresponding to a transition from the ground state of a shallow acceptor to the first excited state. © <i>1995 American Institute</i> <i>of Physics.</i>")