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RIS citation export for WEP014: Pulse Duration Measurement of Pico-second DUV Photocathode Driving Laser by Autocorrelation Technique Using Two-Photon Absorption in Bulk Material

TY - CONF
AU - Zen, H.
AU - Kii, T.
AU - Masuda, K.
AU - Nakajima, T.
AU - Ohgaki, H.
ED - Bishofberger, Kip:Carlsten, Bruce (LANL, Los Alamos, NM, USA)[ORCID:0000-0001-5619-907X]
ED - Schaa, Volker RW
TI - Pulse Duration Measurement of Pico-second DUV Photocathode Driving Laser by Autocorrelation Technique Using Two-Photon Absorption in Bulk Material
J2 - Proc. of FEL2017, Santa Fe, NM, USA, August 20-25, 2017
C1 - Santa Fe, NM, USA
T2 - International Free Electron Laser Conference
T3 - 38
LA - english
AB - A multi-bunch, pico-second DUV photocathode drive laser system has been developed for photocathode operation of mid-infrared free electron laser facility, KU-FEL.* By using the laser, KU-FEL has already succeeded in first lasing under the photocathode operation.** The pulse duration of the photocathode driving laser is a quite important parameter because it determines the initial electron pulse duration on the cathode surface. However, the pulse duration of the photocathode driving laser had not been characterized. A very convenient pulse duration measurement method utilizing two-photon absorption in bulk material, which can be used for DUV laser pulses, has been proposed and demonstrated so far.*** In this study, a DUV nonlinear autocorrelator based on the proposed method was developed to measure the pulse duration of the DUV photocathode driving laser. As the result of measurement, the pulse duration was evaluated as 5.8±0.2 ps (FWHM). The principle of this method, experimental setup and measured results will be presented.
PB - JACoW
CP - Geneva, Switzerland
SP - 447
EP - 449
KW - ion
KW - laser
KW - cathode
KW - electron
KW - gun
DA - 2018/02
PY - 2018
SN - 978-3-95450-179-3
DO - 10.18429/JACoW-FEL2017-WEP014
UR - http://jacow.org/fel2017/papers/wep014.pdf
ER -