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Femtosecond two-photon photoemission at 150 kHz utilizing two noncollinear optical parametric amplifiers for measuring ultrafast electron dynamics

An improved setup for femtosecond two-photon photoemission spectroscopy (TR-2PPE) is presented. Two noncollinear optical parametric amplifiers (NOPA) were operated simultaneously at a repetition rate of 150 kHz. The frequencies of the NOPA outputs were tuned such that subsequent second harmonic gene...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2005-05, Vol.80 (6), p.727-731
Main Authors: GUNDLACH, L, ERNSTORFER, R, RIEDLE, E, EICHBERGER, R, WILLIG, F
Format: Article
Language:English
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Summary:An improved setup for femtosecond two-photon photoemission spectroscopy (TR-2PPE) is presented. Two noncollinear optical parametric amplifiers (NOPA) were operated simultaneously at a repetition rate of 150 kHz. The frequencies of the NOPA outputs were tuned such that subsequent second harmonic generation (SHG) provided the two different ultraviolet wavelengths required for the pump and probe pulse. The width of the crosscorrelation function (CC) for pump and probe pulse was sub-30 fs (FWHM).
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-005-1788-3