Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Energy transmittance of focused femtosecond pulses at different air pressures | |
S. Li; M. Yu; X. Cai; H. Zhang; M. Jin and J. Wu | |
2023 | |
发表期刊 | Optoelectronics Letters
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ISSN | 16731905 |
卷号 | 19期号:10页码:605-613 |
摘要 | Transmission of intense femtosecond laser pulses in air is accompanied by energy depletion. By measuring the transmitted spectra of the focused femtosecond pulses in air, we study the influence of air pressure and initial pulse energy on the spectra around the central wavelength (800 nm) after the interaction of the focused femtosecond laser with air. On this basis, the energy transmittance of the central wavelength of the femtosecond pulses is obtained. It is found that as the air pressure is lower than 1 kPa, the transmitted spectra of focused femtosecond pulses change with the pressure, but there is almost no energy depletion, while as the air pressure is higher than 1 kPa, femtosecond filamentation occurs and the energy transmittance of the central wavelength of the femtosecond pulses decreases with the increase of air pressure and pulse energy. According to the different regimes (i.e., nonfilamentation, and filamentation regimes), we discuss the effect of energy conversion and transfer on the energy transmittance. This work can help to understand the energy depletion during the transmission of ultrashort intense laser pulses in air and provide a guidance for the practical applications of femtosecond filamentation. © 2023, Tianjin University of Technology. |
DOI | 10.1007/s11801-023-3037-6 |
URL | 查看原文 |
收录类别 | ei |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/67639 |
专题 | 中国科学院长春光学精密机械与物理研究所 |
推荐引用方式 GB/T 7714 | S. Li,M. Yu,X. Cai,et al. Energy transmittance of focused femtosecond pulses at different air pressures[J]. Optoelectronics Letters,2023,19(10):605-613. |
APA | S. Li,M. Yu,X. Cai,H. Zhang,&M. Jin and J. Wu.(2023).Energy transmittance of focused femtosecond pulses at different air pressures.Optoelectronics Letters,19(10),605-613. |
MLA | S. Li,et al."Energy transmittance of focused femtosecond pulses at different air pressures".Optoelectronics Letters 19.10(2023):605-613. |
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