Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth
The 4H-SiC crystal is found to have great potential in terahertz generation via nonlinear optical frequency conversion due to its extremely high optical damage threshold, wide transparent range, etc. In this paper, optical rectification (OR) with tilted-pulse-front (TPF) setting based on the 4H-SiC...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2023-01-01
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| Series: | High Power Laser Science and Engineering |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S209547192300052X/type/journal_article |
| _version_ | 1827801608839233536 |
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| author | Fangjie Li Kai Zhong Yiwen Zhang Tong Wu Yuxin Liu Hongzhan Qiao Jining Li Degang Xu Jianquan Yao |
| author_facet | Fangjie Li Kai Zhong Yiwen Zhang Tong Wu Yuxin Liu Hongzhan Qiao Jining Li Degang Xu Jianquan Yao |
| author_sort | Fangjie Li |
| collection | DOAJ |
| description | The 4H-SiC crystal is found to have great potential in terahertz generation via nonlinear optical frequency conversion due to its extremely high optical damage threshold, wide transparent range, etc. In this paper, optical rectification (OR) with tilted-pulse-front (TPF) setting based on the 4H-SiC crystal is proposed. The theory accounts for the optimization of incident pulse pre-chirping in the TPF OR process under high-intensity femtosecond laser pumping. Compared with the currently recognized LiNbO3-based TPF OR, which generates a single-cycle terahertz pulse within 3 THz, 4H-SiC demonstrates a significant advantage in producing ultra-widely tunable (up to over 14 THz, TPF angle 31°–38°) terahertz waves with high efficiency (~10–2) and strong field (~MV/cm). Besides, the spectrum characteristics, as well as the evolution from single- to multi-cycle terahertz pulses can be modulated flexibly by pre-chirping. The simulation results show that 4H-SiC enables terahertz frequency extending to an unprecedent range by OR, which has extremely important potential in strong-field terahertz applications. |
| first_indexed | 2024-03-11T20:27:26Z |
| format | Article |
| id | doaj.art-92750c71372f47e4baa40bad48e92276 |
| institution | Directory Open Access Journal |
| issn | 2095-4719 2052-3289 |
| language | English |
| last_indexed | 2024-03-11T20:27:26Z |
| publishDate | 2023-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj.art-92750c71372f47e4baa40bad48e922762023-10-02T12:03:40ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892023-01-011110.1017/hpl.2023.52Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidthFangjie Li0https://orcid.org/0000-0001-7683-3461Kai Zhong1https://orcid.org/0000-0002-5320-8388Yiwen Zhang2Tong Wu3Yuxin Liu4https://orcid.org/0009-0004-8264-9141Hongzhan Qiao5Jining Li6Degang Xu7Jianquan Yao8School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Marine Science and Technology, Tianjin University, Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaSchool of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University), Tianjin, ChinaThe 4H-SiC crystal is found to have great potential in terahertz generation via nonlinear optical frequency conversion due to its extremely high optical damage threshold, wide transparent range, etc. In this paper, optical rectification (OR) with tilted-pulse-front (TPF) setting based on the 4H-SiC crystal is proposed. The theory accounts for the optimization of incident pulse pre-chirping in the TPF OR process under high-intensity femtosecond laser pumping. Compared with the currently recognized LiNbO3-based TPF OR, which generates a single-cycle terahertz pulse within 3 THz, 4H-SiC demonstrates a significant advantage in producing ultra-widely tunable (up to over 14 THz, TPF angle 31°–38°) terahertz waves with high efficiency (~10–2) and strong field (~MV/cm). Besides, the spectrum characteristics, as well as the evolution from single- to multi-cycle terahertz pulses can be modulated flexibly by pre-chirping. The simulation results show that 4H-SiC enables terahertz frequency extending to an unprecedent range by OR, which has extremely important potential in strong-field terahertz applications.https://www.cambridge.org/core/product/identifier/S209547192300052X/type/journal_articleoptical rectificationsilicon carbideterahertz radiationtilted-pulse-front |
| spellingShingle | Fangjie Li Kai Zhong Yiwen Zhang Tong Wu Yuxin Liu Hongzhan Qiao Jining Li Degang Xu Jianquan Yao Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth High Power Laser Science and Engineering optical rectification silicon carbide terahertz radiation tilted-pulse-front |
| title | Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth |
| title_full | Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth |
| title_fullStr | Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth |
| title_full_unstemmed | Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth |
| title_short | Optical rectification in 4H-SiC: paving the way to generate strong terahertz fields with ultra-wide bandwidth |
| title_sort | optical rectification in 4h sic paving the way to generate strong terahertz fields with ultra wide bandwidth |
| topic | optical rectification silicon carbide terahertz radiation tilted-pulse-front |
| url | https://www.cambridge.org/core/product/identifier/S209547192300052X/type/journal_article |
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