期刊
NATURE COMMUNICATIONS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms1816
关键词
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资金
- Spanish Ministry of Education and Science [SAUUL CSD 2007-00013, FIS2008-06368-C02-01]
- Catalan Agencia de Gestio d'Ajuts Universitaris i de Recerca (AGAUR)
- SGR
- Fundacio Cellex Barcelona
- LASERLAB-EUROPE [228334]
- Marie Curie Intra-European Fellowship [276556-BAXHHG]
- ICREA Funding Source: Custom
In supercontinuum generation, various propagation effects combine to produce a dramatic spectral broadening of intense ultrashort optical pulses. With a host of applications, supercontinuum sources are often required to possess a range of properties such as spectral coverage from the ultraviolet across the visible and into the infrared, shot-to-shot repeatability, high spectral energy density and an absence of complicated pulse splitting. Here we present an all-in-one solution, the first supercontinuum in a bulk homogeneous material extending from 450 nm into the mid-infrared. The spectrum spans 3.3 octaves and carries high spectral energy density (2 pJ nm(-1)-10 nJ nm(-1)), and the generation process has high shot-to-shot reproducibility and preserves the carrier-to-envelope phase. Our method, based on filamentation of femtosecond mid-infrared pulses in the anomalous dispersion regime, allows for compact new supercontinuum sources.
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