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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020

Autores

Salgado Remacha, FJ (Autor) Outra; Alonso, B (Autor) Outra; Crespo, H (Autor) FCUP; Cojocaru, C (Autor) Outra; Trull, J (Autor) Outra; Romero, R (Autor) Outra; Lopez Ripa, M (Autor) Outra; Guerreiro, PT (Autor) Outra; Silva, F (Autor) Outra; Miranda, M (Autor) Outra; L'Huillier, A (Autor) Outra; Arnold, CL (Autor) Outra; Sola, IJ (Autor) Outra

Revista

Título: Optics Letters

Vol. 45

Páginas: 3921-3924

ISSN: 0146-9592

Editora: Optical Society of America

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 5 Citações

Outras Informações

ID Authenticus: P-00S-CPE

DOI: 10.1364/ol.397033

Abstract (EN): 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. (C) 2020 Optical Society of America

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4