Deep-ultraviolet second-harmonic generation by combined degenerate four-wave mixing and surface nonlinearity polarization in photonic crystal fiber
Deep-ultraviolet (UV) second-harmonics (SHs) have important applications in basic physics and applied sciences. However, it still remains challenging to generate deep-UV SHs especially in optical fibers. Here, for the first time, we experimentally demonstrate the deep-UV SH generations (SHGs) by combined degenerate four-wave mixing (FWM) and surface nonlinearity polarization in an in-house designed and fabricated air-silica photonic crystal fiber (PCF). When femtosecond pump pulses with average input power P av of 650 mW and center wavelength λ p of 810, 820, 830, and 840 nm are coupled into the normal dispersion region close to the zero-dispersion wavelength of the fundamental mode of the PCF, the anti-Stokes waves induced by degenerate FWM process are tunable from 669 to 612 nm. Then, they serve as the secondary pump, and deep-UV SHs are generated within the wavelength range of 334.5 to 306 nm as a result of surface nonlinearity polarization at the core-cladding interface of the PCF. The physical mechanism of the SHGs is confirmed by studying the dependences of the output power P SH of the SHs on the PCF length and time. Finally, we also establish a theoretical model to analyze the SHGs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2017 |
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| Erschienen: |
2017 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:7 |
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| Enthalten in: |
Scientific reports - 7(2017), 1 vom: 23. Aug., Seite 9224 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yuan, Jinhui [VerfasserIn] |
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| Links: |
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| Themen: |
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| Anmerkungen: |
Date Completed 12.03.2019 Date Revised 12.03.2019 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1038/s41598-017-10028-3 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM275085716 |
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| 245 | 1 | 0 | |a Deep-ultraviolet second-harmonic generation by combined degenerate four-wave mixing and surface nonlinearity polarization in photonic crystal fiber |
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| 500 | |a published: Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Deep-ultraviolet (UV) second-harmonics (SHs) have important applications in basic physics and applied sciences. However, it still remains challenging to generate deep-UV SHs especially in optical fibers. Here, for the first time, we experimentally demonstrate the deep-UV SH generations (SHGs) by combined degenerate four-wave mixing (FWM) and surface nonlinearity polarization in an in-house designed and fabricated air-silica photonic crystal fiber (PCF). When femtosecond pump pulses with average input power P av of 650 mW and center wavelength λ p of 810, 820, 830, and 840 nm are coupled into the normal dispersion region close to the zero-dispersion wavelength of the fundamental mode of the PCF, the anti-Stokes waves induced by degenerate FWM process are tunable from 669 to 612 nm. Then, they serve as the secondary pump, and deep-UV SHs are generated within the wavelength range of 334.5 to 306 nm as a result of surface nonlinearity polarization at the core-cladding interface of the PCF. The physical mechanism of the SHGs is confirmed by studying the dependences of the output power P SH of the SHs on the PCF length and time. Finally, we also establish a theoretical model to analyze the SHGs | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 700 | 1 | |a Kang, Zhe |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Guiyao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xianting |e verfasserin |4 aut | |
| 700 | 1 | |a Mei, Chao |e verfasserin |4 aut | |
| 700 | 1 | |a Sang, Xinzhu |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Qiang |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Binbin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Xian |e verfasserin |4 aut | |
| 700 | 1 | |a Zhong, Kangping |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Kuiru |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Chongxiu |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Chao |e verfasserin |4 aut | |
| 700 | 1 | |a Tam, Hwa Yaw |e verfasserin |4 aut | |
| 700 | 1 | |a Wai, P K A |e verfasserin |4 aut | |
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