Optical switching of X-rays using laser-induced lattice expansion.
The optical switching of X-rays using laser-induced crystal lattice expansion is described. Irradiation of a gallium arsenide (GaAs) crystal using picosecond laser pulses shifts the Bragg angle through the lattice expansion with a response time of a few hundred picoseconds. A single pulse was extracted from the synchrotron radiation pulse train using a double-crystal arrangement of GaAs, in which the two crystals were irradiated by way of two successive laser pulses with an appropriate time delay.
Tanaka
Yoshihito
Y
SPring-8/RIKEN, 1-1-1 Kouto, Mikaduki, Hyogo 679-5148, Japan. yotanaka@postman.riken.go.jp
Hara
Toru
T
Yamazaki
Hiroshi
H
Kitamura
Hideo
H
Ishikawa
Tetsuya
T