TY - JOUR
AU1 - Yada, Akira
AU2 - Takasago, Kazuya
AU3 - Yanagida, Tatsuya
AU4 - Washio, Masakazu
AU5 - Torizuka, Kenji
AU6 - Endo, Akira
AB - We demonstrated generation of square-shaped ultraviolet pulses and that they reduces the emittance of electron beams from laser-photocathode RF-gun. Some frequency components of femtosecond pulses from a Ti:sapphire oscillator are modulated with a pulse shaper that consists of a lens pair, gratings, and a liquid crystal spatial light modulator (LC-SLM) to generate square-shaped pulses. The shaped pulses were amplified up to 3 mJ through a regenerative amplifier, and were converted to ultraviolet region with two different nonlinear crystals. Energy of the shaped pulses was about 100 (mu) J which is sufficient to generate electron charge of 1 nC. In our experiment, emittance of electron beam was reduced to as low as almost the half of that with non-shaped pulses.
TI - Production of picosecond square-shaped ultraviolet pulses for low-emittance electron bunch generation from an RF photocathode
JF - Proceedings of SPIE
DO - 10.1117/12.469490
DA - 2002-06-05
UR - https://www.deepdyve.com/lp/spie/production-of-picosecond-square-shaped-ultraviolet-pulses-for-low-UIjHA2Kw0y
SP - 213
EP - 221
VL - 4629
IS - 1
DP - DeepDyve
ER -