Generation of high-energy broadband femtosecond deep-ultraviolet pulses by highly nondegenerate noncollinear four-wave mixing in a thin transparent solid

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Rosa Weigand (Autor) Outra; Helder M Crespo (Autor) FCUP

Revista

Título: Applied Physics B: Lasers and Optics

Vol. 111

Páginas: 559-565

ISSN: 0946-2171

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 5 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-006-A8R

DOI: 10.1007/s00340-013-5373-x

Abstract (EN): We present a simple and efficient technique for the generation of ultrashort deep-ultraviolet pulses based on four-wave mixing of noncollinear laser pulses in a thin solid. Sub-30-fs pulses (Fourier-limit of 13 fs) centered at 270 nm, with energies up to 6 mu J, were obtained by mixing the fundamental and the second harmonic of a Ti:sapphire amplifier in fused silica. Temporal characterization was performed with a dispersionless self-diffraction FROG setup. Spectra as broad as 20 nm were also obtained that can in principle support sub-4-fs deep-ultraviolet pulses.The results are well described by two-dimensional numerical simulations.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7