Publikation: Second-harmonic generation and self-phase modulation of few-cycle mid-infrared pulses
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Optics letters. 2019, 44(16), pp. 4079-4082. ISSN 0146-9592. eISSN 1539-4794. Available under: doi: 10.1364/OL.44.004079
Zusammenfassung
Near-single-cycle mid-infrared pulses with a spectrum covering 5.4-11 μm are efficiently frequency-doubled in different GaSe crystals. The second-harmonic spectrum spans 3-4.3 μm at a power conversion efficiency of >20%. We measure an effective nonlinear coefficient of deff≈35 pm/V. We also report on self-phase modulation and spectral broadening of the mid-infrared pulses in various bulk materials and find an increase of 45% of spectral width for 5 mm of Ge. These results demonstrate that nonlinear optical conversions can efficiently be driven by few-cycle mid-infrared radiation.
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CHEN, Bo-Han, Christina HOFER, Ioachim PUPEZA, Peter BAUM, 2019. Second-harmonic generation and self-phase modulation of few-cycle mid-infrared pulses. In: Optics letters. 2019, 44(16), pp. 4079-4082. ISSN 0146-9592. eISSN 1539-4794. Available under: doi: 10.1364/OL.44.004079BibTex
@article{Chen2019-08-15Secon-47020,
year={2019},
doi={10.1364/OL.44.004079},
title={Second-harmonic generation and self-phase modulation of few-cycle mid-infrared pulses},
number={16},
volume={44},
issn={0146-9592},
journal={Optics letters},
pages={4079--4082},
author={Chen, Bo-Han and Hofer, Christina and Pupeza, Ioachim and Baum, Peter}
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<dcterms:abstract xml:lang="eng">Near-single-cycle mid-infrared pulses with a spectrum covering 5.4-11 μm are efficiently frequency-doubled in different GaSe crystals. The second-harmonic spectrum spans 3-4.3 μm at a power conversion efficiency of >20%. We measure an effective nonlinear coefficient of deff≈35 pm/V. We also report on self-phase modulation and spectral broadening of the mid-infrared pulses in various bulk materials and find an increase of 45% of spectral width for 5 mm of Ge. These results demonstrate that nonlinear optical conversions can efficiently be driven by few-cycle mid-infrared radiation.</dcterms:abstract>
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