共 21 条
A tunable ultrafast spectrometer based on hollow waveguides: Demonstration in violet-blue
被引:5
作者:
Duhr, O
[1
]
Nibbering, ETJ
[1
]
Korn, G
[1
]
机构:
[1] Max Born Inst Nichtlineare Optik & Kurzzeitspektr, D-12489 Berlin, Germany
来源:
APPLIED PHYSICS B-LASERS AND OPTICS
|
1998年
/
67卷
/
04期
关键词:
D O I:
10.1007/s003400050538
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
We demonstrate an ultrafast spectrometer based on the hollow-fiber technique with sub-50-fs time resolution in the violet-blue wavelength range at 1-kHz repetition rates. We use an intense compressed near-infrared continuum as a seed for upconversion to the range 360-450 nm with 3-30 mu J energies and 40-50 fs durations, We show that implementation of this scheme allows a flexible two-colour two-pulse generation to be used in spectroscopic experiments. We apply this two-colour pump-probe set-up in a study of the ultrafast hydrogen-transfer dynamics of 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole.
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页码:525 / 527
页数:3
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