期刊
OPTICS LETTERS
卷 47, 期 4, 页码 750-753出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.449597
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- Deutsche Forschungsgemeinschaft [GR1782/16-2]
This study extends the basic approach of simultaneous spatio-temporal focusing of ultrashort pulses by superimposing two reciprocal sub-beams in a dual-channel stretcher-compressor setup. The spatial modulations of the symmetrized focal zones of few-cycle near-infrared pulses are investigated through parametric numerical simulations, and their relationships to specific ultrafast interference phenomena are addressed.
Simultaneous spatio-temporal focusing of ultrashort pulses is usually performed by single-channel stretcher-compressor geometries where pulse front tilt leads to spatial asymmetry. Here, the basic approach is extended by superimposing two reciprocal sub-beams in a dual-channel stretcher-compressor setup. Spatio-temporal properties of the symmetrized focal zones of few-cycle near-infrared pulses are studied by parametric numerical simulations with physical optics software. Spatial modulations of focal zones depending on focusing conditions appear. Relationships to specific ultrafast interference phenomena are addressed. (C) 2022 Optica Publishing Group
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