ISSN:
1432-0649
Keywords:
42,65Re
;
42.60Fc
;
78.47+p
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have set up a laser system which simultaneously provides synchronized picosecond pulses in the visible and at a wavelength of 1.06 μm with a repetition rate of 76 MHz. The set-up consists of a dye laser synchronously pumped by the second harmonic of a cw mode-locked Nd:YAG laser and a fiber-grating compressor for the fundamental wavelength of the Nd;YAG laser. Crosscorrelation measurments reveal the time jitter between the two pulse trains to be less than 10 ps. As a first application we have performed non-degenerate transient grating experiments in semiconductors. The non-degenerate technique allows to use excitation energies well above the bandgap energy and to separate non-linear refractive index effects from photoinduced absorption or transmission changes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00694412
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