Femtosecond traveling-wave parametric generation with lithium triborate
Anno: 1993
Autori: Banfi G.P., Danielius R., Di Trapani P., Foggi P., Righini R., Piskarskas A.
Affiliazione autori: Department of Electronics, University of Pavia, Pavia, 27100, Italy; Laser Research Center, Vilnius University, Vilnius, 2054, Lithuania; Department of Physics, University of Milano at Como, Como, 22100, Italy; European Laboratory for Nonlinear Spectroscopy, Florence, 50125, Italy
Abstract: Ultrashort pulses, of the same time duration as the pump pulse, have been obtained with a traveling-wave parametric generator employing a temperature-tuned lithium triborate crystal in noncritical phase matching. Starting from a 190-fs pulse at 0.6 µm generated by a dye laser, we achieved an overall conversion efficiency of 10-15% in the tuning range 0.85–0.97 µm (and the corresponding range of 1.6–2.1 µm) with a pump energy of only 30 µJ. The easy operation in the femtosecond regime and the minimal energy requirements that we found are due to the small group-velocity mismatch of lithium triborate at this pump wavelength and to the absence of walk-off.
Giornale/Rivista: OPTICS LETTERS
Volume: 18 (19) Da Pagina: 1633 A: 1635
Parole chiavi: Boron compounds; Crystalline materials; Lithium compounds; Spectroscopy; Waves, Barium borate; Lithium triborate; Traveling wave parametric generators, Pumping (laser)DOI: 10.1364/OL.18.001633Citazioni: 18dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui