Linearly and Circularly Polarized CarrierEnvelopePhase Stable Attosecond Pulse

Linearly and Circularly Polarized Carrier-Envelope-Phase Stable Attosecond Pulse Generation György Tóth 1, Zoltán Tibai 1, Zsuzsanna Nagy-Csiha 2, Gábor Almási 1, 2 and János Hebling 1, 2, 3 1 MTA-PTE High Field THz Research Group, Pécs, Hungary 2 Institute of Physics, University of Pécs, Hungary 3 Szentágotai Research Centre, Pécs, Hungary Fizikus Vándorgyűlés, 2016. 08. 25.

Outline • Attosecond pulse sources • Our setup • Electron radiation • Beam manipulation • Pulse generation • Initial parameters • Results • Future plans

Attosecond pulse sources • High order harmonic generation - HHG 135 fs G. Sansone et al. Science 314, 443 (2006) • Free electron lasers – FEL • Experiment • SLAC (Stanford Linear Accelerator Center) • SACLA (Spring-8 Angstrom Compact free electron LAser) • Attosecond • Theoretical • 20 – 200 as • Few cycles • Carrier envelope phase controlled

CEP-controlled attosecond pulse source Z. Tibai, Gy. Tóth et al. , Phys. Rev. Lett. 113, 104801 (2014)

Electron radiation Motion and the field of the moving charge: J. D. Jackson, Classical Electrodinamics: More electrons are needed!

Electron beam Elektroncsomag tipikus mérete

Electron beam manipulation

Animation of bunching

Electron beam Modell FLASH II Bunch length: Energy 1000 Me. V 0. 05 % Charge 250 p. C

Modulation Modulator undulator parameter Modulator laser parameter Wavelength 516 nm Length Waist size 720 mm K Power 10 TW Trimm Polarization linear Period number Bunch length: 2. 08 m 1. 4 -¼, ¾, -¾, ¼ 2 Modulator length

Attosecond pulse generation Z. Tibai, Gy. Tóth et al. , Phys. Rev. Lett. 113, 104801 (2014)

Radiation W. D. Kimura, Phys. Rev. Spec. Top. Acc. and Beams 7, 091301 (2004).

Carrier-envelope phase controlling Magnetic field distribution is changed CEP can be controlled G. Tóth, Z. Tibai et al. Nucl. Instr. Meth. Phys. Res. B 369 2 -8 (2016) Z. Tibai, Gy. Tóth et al. ar. Xiv: 1604. 08050 (2016)