Laserpulse stretching

Qi, Pengfei, Wenqi Qian, Lanjun Guo, Jiayun Xue, Nan Zhang, Yuezheng Wang, Zhi Zhang, Zeliang Zhang, Lie Lin, Changlin Sun, and et al. 2022. "Sensing with Femtosecond Laser Filamentation" Sensors 22, no. 18: 7076. https://doi.org/10.3390/s22187076

Qi, P., Qian, W., Guo, L., Xue, J., Zhang, N., Wang, Y., Zhang, Z., Zhang, Z., Lin, L., Sun, C., Zhu, L., & Liu, W. (2022). Sensing with Femtosecond Laser Filamentation. Sensors, 22(18), 7076. https://doi.org/10.3390/s22187076

Laserchirp definition

Qi P, Qian W, Guo L, Xue J, Zhang N, Wang Y, Zhang Z, Zhang Z, Lin L, Sun C, et al. Sensing with Femtosecond Laser Filamentation. Sensors. 2022; 22(18):7076. https://doi.org/10.3390/s22187076

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Chirped pulse amplification Nobel Prize

Femtosecondlaser filament

Editor’s Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers, or important in the respective research area. The aim is to provide a snapshot of some of the most exciting work published in the various research areas of the journal.

Nonlinear susceptibility tensor

Qi, P.; Qian, W.; Guo, L.; Xue, J.; Zhang, N.; Wang, Y.; Zhang, Z.; Zhang, Z.; Lin, L.; Sun, C.; et al. Sensing with Femtosecond Laser Filamentation. Sensors 2022, 22, 7076. https://doi.org/10.3390/s22187076

Qi, Pengfei, Wenqi Qian, Lanjun Guo, Jiayun Xue, Nan Zhang, Yuezheng Wang, Zhi Zhang, Zeliang Zhang, Lie Lin, Changlin Sun, and et al. 2022. "Sensing with Femtosecond Laser Filamentation" Sensors 22, no. 18: 7076. https://doi.org/10.3390/s22187076

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Abstract: Femtosecond laser filamentation is a unique nonlinear optical phenomenon when high-power ultrafast laser propagation in all transparent optical media. During filamentation in the atmosphere, the ultrastrong field of 1013–1014 W/cm2 with a large distance ranging from meter to kilometers can effectively ionize, break, and excite the molecules and fragments, resulting in characteristic fingerprint emissions, which provide a great opportunity for investigating strong-field molecules interaction in complicated environments, especially remote sensing. Additionally, the ultrastrong intensity inside the filament can damage almost all the detectors and ignite various intricate higher order nonlinear optical effects. These extreme physical conditions and complicated phenomena make the sensing and controlling of filamentation challenging. This paper mainly focuses on recent research advances in sensing with femtosecond laser filamentation, including fundamental physics, sensing and manipulating methods, typical filament-based sensing techniques and application scenarios, opportunities, and challenges toward the filament-based remote sensing under different complicated conditions. Keywords: femtosecond laser; filamentation; remote sensing

Phase matching in nonlinear optics

Qi, P., Qian, W., Guo, L., Xue, J., Zhang, N., Wang, Y., Zhang, Z., Zhang, Z., Lin, L., Sun, C., Zhu, L., & Liu, W. (2022). Sensing with Femtosecond Laser Filamentation. Sensors, 22(18), 7076. https://doi.org/10.3390/s22187076

Qi, P.; Qian, W.; Guo, L.; Xue, J.; Zhang, N.; Wang, Y.; Zhang, Z.; Zhang, Z.; Lin, L.; Sun, C.; et al. Sensing with Femtosecond Laser Filamentation. Sensors 2022, 22, 7076. https://doi.org/10.3390/s22187076

Feature papers are submitted upon individual invitation or recommendation by the scientific editors and must receive positive feedback from the reviewers.

Qi P, Qian W, Guo L, Xue J, Zhang N, Wang Y, Zhang Z, Zhang Z, Lin L, Sun C, et al. Sensing with Femtosecond Laser Filamentation. Sensors. 2022; 22(18):7076. https://doi.org/10.3390/s22187076

Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.