Spectral phase transfer from near IR to deep UV by broadband phase-matched four-wave mixing in an argon-filled hollow core waveguide

Autor(es)

Siqueira, J. P. ; Mendonca, C. R. ; Zilio, S. C. ; Misoguti, L.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 49, n. 19 OCT 14 2016.
• Citações Web of Science: 0

Resumo

We report on the implementation of a spectral phase transfer scheme from near IR to deep UV, in which the frequency conversion step is based on the broadband phase-matched four-wave mixing in a gas-filled hollow core waveguide. Micro joule level femtosecond pulses at 260 nm were generated by nonlinear mixing of a Ti:sapphire laser and its second-harmonic. The transfer of a pi-step phase in a controllable manner was proposed and confirmed by a modulation observed in the generated deep UV femtosecond pulse spectrum due to an interference process. Numerical simulations confirmed our results. (AU)

• Processo FAPESP: 12/03513-6 - Espectroscopia Óptica Ultra-rápida aplicada a Reações Fotoquímicas.
• Beneficiário: Jonathas de Paula Siqueira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 08/53945-4 - Conversao de frequencia em capilares preenchidos com gases com pulsos de femtossegundo.
• Beneficiário: Jonathas de Paula Siqueira
• Modalidade de apoio: Bolsas no Brasil - Doutorado