Nonlinear optics

Control of the duration of picosecond infrared pulses in semiconductors with variable dispersion

V. D. Taranukhin


Abstract: A method is proposed for altering the duration of picosecond radiation pulses by direct control of the group velocity. In semiconductor media such control can be implemented by altering the density of free carriers N_e during the passage of a pulse. Different mechanisms of changes in N_e are considered and these result in shortening or lengthening of infrared radiation pulses.

UDC: 621.373.826

PACS: 42.55.Px, 42.60.Fc, 42.65.Re, 72.20.-i

Received: 26.05.1988

 English version: Soviet Journal of Quantum Electronics, 1989, 19:3, 393–395

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