Femtosecond Polarization Shaping of Free-Electron Laser Pulses

被引：11

作者：

Perosa, Giovanni ^{[1
,2
]}

Waetzel, Jonas ^{[3
]}

Garzella, David ^{[1
]}

Allaria, Enrico ^{[1
]}

Bonanomi, Matteo ^{[4
,5
]}

Danailov, Miltcho Boyanov ^{[1
]}

Brynes, Alexander ^{[1
]}

Callegari, Carlo ^{[1
]}

De Ninno, Giovanni ^{[1
,6
]}

Demidovich, Alexander ^{[1
]}

Di Fraia, Michele ^{[1
,7
]}

Di Mitri, Simone ^{[1
,2
]}

Giannessi, Luca ^{[1
,8
]}

Manfredda, Michele ^{[1
]}

Novinec, Luka ^{[1
]}

Pal, Nitish ^{[1
]}

Penco, Giuseppe ^{[1
]}

Plekan, Oksana ^{[1
]}

Prince, Kevin C. ^{[1
]}

Simoncig, Alberto ^{[1
]}

Spampinati, Simone ^{[1
]}

Spezzani, Carlo ^{[1
]}

Zangrando, Marco ^{[1
,7
]}

Berakdar, Jamal ^{[3
]}

Feifel, Raimund ^{[9
]}

Squibb, Richard J. ^{[9
]}

Coffee, Ryan ^{[10
]}

Hemsing, Erik ^{[10
]}

Roussel, Eleonore ^{[11
]}

Sansone, Giuseppe ^{[12
]}

Meneil, Brian W. J. ^{[13
,14
,15
]}

Ribic, Primoz Rebernik ^{[1
]}

机构：

[1] Elettra Sincrotrone Trieste, I-34149 Trieste, Italy

[2] Univ Trieste, Dept Phys, I-34127 Trieste, Italy

[3] Martin Luther Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany

[4] Politecn Milan, I-20133 Milan, Italy

[5] Ist Foton & Nanotecnol, I-20133 Milan, Italy

[6] Univ Nova Gorica, Lab Quantum Opt, Nova Gorica 5001, Slovenia

[7] CNR, Ist Officina Mat, I-34149 Basovizza, Italy

[8] ENEA CR Frascati, I-00044 Frascati, Roma, Italy

[9] Univ Gothenburg, Dept Phys, S-41133 Gothenburg, Sweden

[10] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[11] Univ Lille, CNRS, UMR 8523, PhLAM Phys Lasers Atomes & Mol, F-59000 Lille, France

[12] Albert Ludwigs Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany

[13] Univ Strathclyde, SUPA, Glasgow City G4 0NG, Scotland

[14] Cockcroft Inst, Warrington WA4 4AD, England

[15] STFC Daresbury Lab, ASTeC, Warrington WA4 4AD, England

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 131卷 / 04期

基金：

瑞典研究理事会;

关键词：

CIRCULAR-DICHROISM; PHOTOELECTRON; GENERATION; COHERENT; STATE;

D O I：

10.1103/PhysRevLett.131.045001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate the generation of extreme-ultraviolet (XUV) free-electron laser (FEL) pulses with timedependent polarization. To achieve polarization modulation on a femtosecond timescale, we combine two mutually delayed counterrotating circularly polarized subpulses from two cross-polarized undulators. The polarization profile of the pulses is probed by angle-resolved photoemission and above-threshold ionization of helium; the results agree with solutions of the time-dependent Schrodinger equation. The stability limit of the scheme is mainly set by electron-beam energy fluctuations, however, at a level that will not compromise experiments in the XUV. Our results demonstrate the potential to improve the resolution and element selectivity of methods based on polarization shaping and may lead to the development of new coherent control schemes for probing and manipulating core electrons in matter.

引用

页数：7

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