Generation of high-energy vacuum UV femtosecond pulses by multiple-beam cascaded four-wave mixing in a transparent solid

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Joao L Silva (Autor) Outra; Helder M Crespo (Autor) FCUP; Rosa Weigand (Autor) Outra

Revista

Título: Applied Optics

Vol. 50 Nº 4

Páginas: 1968-1973

ISSN: 1559-128X

Editora: Optical Society of America

Indexação

ISI Web of Knowledge - 13 Citações

Scopus - 14 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-002-RGV

DOI: 10.1364/ao.50.001968

Abstract (EN): The generation of ultrashort vacuum UV (VUV) pulses by nondegenerate cascaded four-wave mixing of femtosecond pulses in a thin slide of a large band-gap transparent solid is numerically demonstrated. Using a novel noncollinear multiple-beam configuration, cascaded four-wave mixing of amplified 30 fs Ti:sapphire laser pulses at 800 nm, and their second harmonic in lithium fluoride results in the generation of VUV radiation down to 134nm with energies in the mu J range and durations comparable to those of the pump pulses. The proposed geometry is advantageous in large dispersion scenarios, namely for generating radiation close to absorption bands. Hence these results set this technique as a promising way to efficiently generate ultrashort VUV radiation in solids for several applications in science and technology. (C) 2011 Optical Society of America

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6