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VOLUME 47 (1988) | ISSUE 3 | PAGE 136
Interband emission of hot holes during uniaxial compression of Ge
A far-IR emission of hot holes in Ge has been observed as a result of optical transitions from the heavy-hole band into the light-hole band, split by uniaxial compression. At the threshold values of the electric field and the pressure, an emission of a stimulated nature is observed to arise, with an intensity as much as 103 times that of the spontaneous emission.