Production of picosecond square-shaped ultraviolet pulses for low-emittance electron bunch generation from an RF photocathode

Akira Yada; Kazuya Takasago; Shinji Ito; Tatsuya Yanagida; Jinfeng Yang; Masakazu Washio; Kenji Torizuka; Akira Endo

doi:10.1117/12.469490

6 June 2002 Production of picosecond square-shaped ultraviolet pulses for low-emittance electron bunch generation from an RF photocathode

Akira Yada, Kazuya Takasago, Shinji Ito, Tatsuya Yanagida, Jinfeng Yang, Masakazu Washio, Kenji Torizuka, Akira Endo

Author Affiliations +

Proceedings Volume 4629, Laser Resonators and Beam Control V; (2002) https://doi.org/10.1117/12.469490
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States

Abstract

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.

Citation Download Citation

Akira Yada, Kazuya Takasago, Shinji Ito, Tatsuya Yanagida, Jinfeng Yang, Masakazu Washio, Kenji Torizuka, and Akira Endo "Production of picosecond square-shaped ultraviolet pulses for low-emittance electron bunch generation from an RF photocathode", Proc. SPIE 4629, Laser Resonators and Beam Control V, (6 June 2002); https://doi.org/10.1117/12.469490

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available