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1. (WO2018177768) METHOD AND DEVICE FOR CREATING A PHASE MODULATED ULTRASHORT LASER PULSE

Pub. No.:    WO/2018/177768    International Application No.:    PCT/EP2018/056597
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 16 00:59:59 CET 2018
IPC: H01S 3/00
H05G 2/00
H01S 3/11
H01S 5/00
Applicants: GSI HELMHOLTZZENTRUM FÜR SCHWERIONENFORSCHUNG GMBH
Inventors: RYKOVANOV, Sergey
SEIPT, Daniel
Title: METHOD AND DEVICE FOR CREATING A PHASE MODULATED ULTRASHORT LASER PULSE
Abstract:
The invention describes a method and a device for creating a phase modulated ultrashort laser pulse (12), comprising the following steps: - an initial ultrashort laser pulse (1) is split into a first laser pulse (3) and a second laser pulse (6), - a time delay (δ) is introduced between the first and the second laser pulse (3, 6), - a positive chirp is applied to the first laser pulse (3) and a negative chirp is applied to the second laser pulse (6) obtaining an instantaneous frequency (ω/ΧΟ) for the first and second laser pulse (3) and (6), and - the first laser pulse (3) and the second laser pulse (6) are recombined to form the phase modulated ultrashort laser pulse (12). The method and device can be used for Compton scattering of accelerated electrons with the phase modulated ultrashort laser pulses.