Stimulated-emission-induced enhancement of the decay rate of longitudinal optical phonons in III–V semiconductors

Chen, Jing; Khurgin, Jacob B.; Merlin, R.
April 2002
Applied Physics Letters;4/22/2002, Vol. 80 Issue 16, p2901
Academic Journal
We explore the feasibility of reducing the lifetime of longitudinal optical phonons in InP by injecting coherent longitudinal acoustic modes of frequency given by the difference between those of the longitudinal and transverse optical phonons. Calculations show that a ten-fold reduction in the lifetime can be attained using a 40 mW acoustic source. The increase in the phonon decay should reduce the scattering rate of hot electrons in fast devices. © 2002 American Institute of Physics.


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