Add to BibSonomy
Abstract
Ultraviolet solid-state light sources, especially in the short-wave ultraviolet band, are attracting great attention for potential applications in high-density optical data storage, biomedical research, and water and air purification and sterilization. As one of the means to generate solid-state short-wavelength lasers, upconversion technology, which can transform a low-energy photon to a high-energy photon, has a simple structure and does not require strict phase-matching conditions. However, because of the high non-radiative decay rate during multiphoton absorption process, the short-wave upconversion ultraviolet lasing is still difficult to achieve. Here, under 450 nm blue laser excitation, we have successfully obtained ultraviolet C random lasing from a Pr3+ doped YPO4 single crystal via two-photon absorption. Presently, ultraviolet C random lasing with the wavelength range of 230–280 nm is the shortest wavelength for upconversion lasing emission.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Pinshu Lv, Leipeng Li, Zhiqian Yin, Chunzheng Wang, and Yanmin Yang
Opt. Lett. 47(17) 4435-4438 (2022)
Ting Wang, Bitao Liu, Yue Lin, Qihua Yang, Wei Gao, Ming Jie Li, Jianbei Qiu, Xue Yu, Xuhui Xu, and Siu Fung Yu
Opt. Lett. 45(21) 5986-5989 (2020)
Jianhong Wu, Haolin Zheng, Xinghua Liu, Boning Han, Jun Wei, and Yanmin Yang
Opt. Lett. 41(4) 792-795 (2016)