Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Two phase-matching regimes in high-order harmonic generation
Författare
Summary, in English
High-order harmonic generation (HHG) provides scalable sources of coherent extreme ultraviolet radiation with pulse duration down to the attosecond time scale. Efficient HHG requires the constructive interplay between microscopic and macroscopic effects in the generation volume, which can be achieved over a large range of experimental parameters from the driving field properties to those of the generating medium. Here, we present a systematic study of the harmonic yield as a function of gas pressure and medium length. Two regimes for optimum yield are identified, supporting the predictions of a recently proposed analytical model. Our observations are independent on the focusing geometry and, to a large extent, on the pulse duration and laser intensity, providing a versatile approach to HHG optimization.
Avdelning/ar
- Atomfysik
- LTH profilområde: Avancerade ljuskällor
- LU profilområde: Ljus och material
- Fysiska institutionen
- NanoLund: Centre for Nanoscience
- LTH profilområde: Nanovetenskap och halvledarteknologi
- Lunds lasercentrum, LLC
Publiceringsår
2023-09
Språk
Engelska
Sidor
31687-31697
Publikation/Tidskrift/Serie
Optics Express
Volym
31
Issue
20
Dokumenttyp
Artikel i tidskrift
Förlag
Optical Society of America
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1094-4087