Ultrashort optical-vortex pulse generation in few-cycle regime.

作者: Keisaku Yamane , Yasunori Toda , Ryuji Morita

DOI: 10.1364/OE.20.018986

关键词:

摘要: We generated a 2.3-cycle, 5.9-fs, 56-μJ ultrashort optical-vortex pulse (ranging from ∼650 to ∼950 nm) in few-cycle regime, by optical parametric amplification. It was performed even using passive elements (a pair of prisms and chirped mirrors) for chirp compensation. Spectrally-resolved interferograms intensity profiles showed that the obtained pulses have no spatial or topological-charge dispersion during amplification process. To best our knowledge, it is first generation regime. They can be powerful tools ultrabroadband and/or ultrafast spectroscopy experiments high-intensity field physics.

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