Single-shot d-scan technique for ultrashort laser pulse characterization using transverse second-harmonic generation in random nonlinear crystals

Salgado-Remacha, F.J. (Universidad de Zaragoza) ; Alonso, B. ; Crespo, H. ; Cojocaru, C. ; Trull, J. ; Romero, R. ; Lopez-Ripa, M. ; Guerreiro, P.T. ; Silva, F. ; Miranda, M. ; L''Huillier, A. ; Arnold, C.L. ; Sola, I.J.

Resumen: 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.

Idioma: Inglés

DOI: 10.1364/OL.397033

Año: 2020

Publicado en: Optics Letters 45, 14 (2020), 3925-3928
ISSN: 0146-9592

Factor impacto JCR: 3.776 (2020)

Categ. JCR: OPTICS rank: 22 / 99 = 0.222 (2020) - Q1 - T1

Factor impacto SCIMAGO: 1.524 - Atomic and Molecular Physics, and Optics (Q1)

Financiación: info:eu-repo/grantAgreement/EUR/ERC/SISCAN-78992
Financiación: info:eu-repo/grantAgreement/ES/MINECO/EQC2018-004117-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2017-87970-R

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)