Time-resolved pump-probe experiments beyond the jitter limitations at FLASH

被引：55

作者：

Azima, A. ^{[1
]}

Duesterer, S. ^{[1
]}

Radcliffe, P. ^{[1
]}

Redlin, H. ^{[1
]}

Stojanovic, N. ^{[1
]}

Li, W. ^{[1
]}

Schlarb, H. ^{[1
]}

Feldhaus, J. ^{[1
]}

Cubaynes, D. ^{[2
]}

Meyer, M. ^{[2
]}

Dardis, J. ^{[3
,4
]}

Hayden, P. ^{[3
,4
]}

Hough, P. ^{[3
,4
]}

Richardson, V. ^{[3
,4
]}

Kennedy, E. T. ^{[3
,4
]}

Costello, J. T. ^{[3
,4
]}

机构：

[1] DESY, D-22607 Hamburg, Germany

[2] Ctr Univ Paris Sud, LIXAM CNRS, UMR 8624, F-91405 Orsay, France

[3] Dublin City Univ, Natl Ctr Plasma Sci & Technol, Dublin 9, Ireland

[4] Dublin City Univ, Sch Phys Sci, Dublin 9, Ireland

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 14期

关键词：

electro-optical effects; free electron lasers; high-speed optical techniques; jitter; optical pumping; photoionisation; two-photon processes;

D O I：

10.1063/1.3111789

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a noninvasive, electro-optically based electron bunch arrival time measurement at FLASH (free electron laser in Hamburg) the temporal resolution of two-color pump-probe experiments has been significantly improved. The system determines the relative arrival time of the extended ultraviolet pulse of FLASH and an amplified Ti:sapphire femtosecond-laser pulse at the interaction region better than 90 fs rms. In a benchmarking pump-probe experiment using two-color above threshold ionization of noble gases, an enhancement in the timing resolution by a factor of 4 compared to the uncorrected data is obtained.

引用

页数：3

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