dorsal/arxiv
View SchemaSupercontinuum generation of ultrashort laser pulses in air at different central wavelengths
| Authors | S. Skupin, L. Berge |
|---|---|
| Categories | |
| ArXiv ID | physics/0703155 |
| URL | https://arxiv.org/abs/physics/0703155 |
| DOI | 10.1016/j.optcom.2007.06.067 |
| Journal | Opt. Commun. 280, 173 (2007) |
Abstract
Supercontinuum generation by femtosecond filaments in air is investigated for different laser wavelengths ranging from ultraviolet to infrared. Particular attention is paid on the role of third-harmonic generation and temporal steepening effects, which enlarge the blue part of the spectrum. A unidirectional pulse propagation model and nonlinear evolution equations are numerically integrated and their results are compared. Apart from the choice of the central wavelength, we emphasize the importance of the saturation intensity reached by self-guided pulses, together with their temporal duration and propagation length as key players acting on both supercontinuum generation of the pump wave and emergence of the third harmonics. Maximal broadening is observed for large wavelengths and long filamentation ranges.
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"abstract": "Supercontinuum generation by femtosecond filaments in air is investigated for\ndifferent laser wavelengths ranging from ultraviolet to infrared. Particular\nattention is paid on the role of third-harmonic generation and temporal\nsteepening effects, which enlarge the blue part of the spectrum. A\nunidirectional pulse propagation model and nonlinear evolution equations are\nnumerically integrated and their results are compared. Apart from the choice of\nthe central wavelength, we emphasize the importance of the saturation intensity\nreached by self-guided pulses, together with their temporal duration and\npropagation length as key players acting on both supercontinuum generation of\nthe pump wave and emergence of the third harmonics. Maximal broadening is\nobserved for large wavelengths and long filamentation ranges.",
"arxiv_id": "physics/0703155",
"authors": [
"S. Skupin",
"L. Berge"
],
"categories": [
"physics.optics",
"physics.plasm-ph"
],
"doi": "10.1016/j.optcom.2007.06.067",
"journal_ref": "Opt. Commun. 280, 173 (2007)",
"title": "Supercontinuum generation of ultrashort laser pulses in air at different central wavelengths",
"url": "https://arxiv.org/abs/physics/0703155"
},
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