We introduce a scheme for the generation of tunable few-optical-cycle UV pulses based on sum-frequency generation between a broadband visible pulse and a narrowband pulse ranging from the visible to the near-IR. This configuration generates broadband UV pulses tunable from 0.3 to 0.4 mu m, with energy up to 1.5 mu J. By exploiting nonlinear phase transfer, transform-limited pulse durations are achieved. Full characterization of the UV pulse spectral phase is obtained by two-dimensional spectral shearing interferometry, which is here extended to the UV spectral range. We demonstrate clean 8.4 fs UV pulses. (C) 2014 Optical Society of America
Microjoule-level, tunable sub-10 fs UV pulses by broadband sum-frequency generation / Rocio Borrego Varillas;Alessia Candeo;Daniele Viola;Marco Garavelli;Sandro De Silvestri;Giulio Cerullo;Cristian Manzoni. - In: OPTICS LETTERS. - ISSN 0146-9592. - STAMPA. - 39:(2014), pp. 3849-3852. [10.1364/OL.39.003849]
Microjoule-level, tunable sub-10 fs UV pulses by broadband sum-frequency generation
GARAVELLI, MARCO;
2014
Abstract
We introduce a scheme for the generation of tunable few-optical-cycle UV pulses based on sum-frequency generation between a broadband visible pulse and a narrowband pulse ranging from the visible to the near-IR. This configuration generates broadband UV pulses tunable from 0.3 to 0.4 mu m, with energy up to 1.5 mu J. By exploiting nonlinear phase transfer, transform-limited pulse durations are achieved. Full characterization of the UV pulse spectral phase is obtained by two-dimensional spectral shearing interferometry, which is here extended to the UV spectral range. We demonstrate clean 8.4 fs UV pulses. (C) 2014 Optical Society of AmericaI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
