期刊
LASER PHYSICS LETTERS
卷 20, 期 12, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1612-202X/ad0541
关键词
photoinjector laser; 3D ellipsoidal laser pulse; spectron
This paper proposes a method for shaping laser pulses in a photoinjector with a sharp 3D ellipsoidal boundary, using black analog masks as shaping elements. Promising experimental results were obtained at the fundamental harmonic, with a 3D boundary thickness better than 10%. The proposed scheme can be easily modified for multiplied harmonics of radiation.
Today the electron beam emittance minimization race seems to slack due to insufficiency of beam shaping techniques. To fill the gap we propose a method for shaping a sharp 3D ellipsoidal boundary of laser pulses used in a photoinjector. To avoid distortions in the profiled laser beam, only black analog masks are exploited as shaping elements. A highly promising experimental distribution with a 3D boundary thickness better than 10% was obtained at the fundamental harmonic. The proposed scheme can be easily modified for multiplied harmonics of radiation.
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