Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Single-shot d-scan technique for ultrashort laser pulse characterization using transverse second-harmonic generation in random nonlinear crystals
Författare
Summary, in English
We demonstrate a novel dispersion-scan (d-scan) scheme for single-shot temporal characterization of ultrashort laser pulses. The novelty of this method relies on the use of a highly dispersive crystal featuring antiparallel nonlinear domains with a random distribution and size. This crystal, capable of generating a transverse second-harmonic signal, acts simultaneously as the dispersive element and the nonlinear medium of the d-scan device. The resulting in-line architecture makes the technique very simple and robust, allowing the acquisition of single-shot d-scan traces in real time. The retrieved pulses are in very good agreement with independent frequency-resolved optical grating measurements. We also apply the new single-shot d-scan to a terawatt-class laser equipped with a programmable pulse shaper, obtaining an excellent agreement between the applied and the d-scan retrieved dispersions.
Avdelning/ar
- Fysiska institutionen
Publiceringsår
2020-07-15
Språk
Engelska
Sidor
3925-3928
Publikation/Tidskrift/Serie
Optics Letters
Volym
45
Issue
14
Dokumenttyp
Artikel i tidskrift
Förlag
Optical Society of America
Ämne
- Other Physics Topics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0146-9592