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Optimization of Intense Attosecond XUV Pulses
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik.
2019 (engelsk)Independent thesis Advanced level (degree of Master (One Year)), 10 poäng / 15 hpOppgave
Abstract [en]

To observe electron dynamics in molecules and atoms which takes place on the attosecond timescale, single isolated attosecond pulses are required utilized in performing pump–probe experiments.

The Light Wave Synthesizer 20 generates intense sub-5 fs pulses with a peak power of 16 TW and a broad spectrum. This offers a chance of generating isolated attosecond pulses via high harmonic generation (HHG) in gas medium. In this project, the variation of cutoff energy of HHG with different intensities of the driving laser was investigated. In addition, an isolated attosecond pulse with an Fourier-limited pulse duration of 188 as is produced with a selection of 15 eV around the cutoff region. Moreover, one optimization method refer to GDD scan was illustrated to optimize the HHG cutoff and continuum.

sted, utgiver, år, opplag, sider
2019.
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-165569OAI: oai:DiVA.org:umu-165569DiVA, id: diva2:1373280
Fag / kurs
Fysik D - examensarbete II
Utdanningsprogram
Master's Programme in Physics
Tilgjengelig fra: 2019-11-27 Laget: 2019-11-26 Sist oppdatert: 2019-11-27bibliografisk kontrollert

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