PreprintCC BY 4.0arXiv
Continuous-wave 148.4 nm Generation in Quasi-phase Matched BaMgF4
Abstract
We report continuous-wave (CW) vacuum-ultraviolet (VUV) generation at 148.4 nm by second-harmonic generation of 296.8-nm fundamental light in quasi-phase matched (QPM) BaMgF4 (BMF). At the incident power of 170 mW, a VUV output power of approximately 31 pW can be obtained. The quadratic dependence of the signal on the incident power in the QPM region and its attenuation in the ambient environment support the identification of VUV generation. The polarization dependence shows a sine-function shape with a 15% output attenuation from the maximum to the minimum. These results highlight the potential of BMF as a nonlinear medium for CW VUV generation.
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BibTeX
@misc{bu2026continuouswave,
title = {{Continuous-wave 148.4 nm Generation in Quasi-phase Matched BaMgF4}},
author = {Yuanzhuang Bu and Xiangting Wang and Ruiyin Gu and Chongtai Liu and Luxin Jiang and Xinqing Ding and Ke Zhang and Yongkai Li and Kemi Xu},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.18519},
eprint = {2610.18519},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.18519},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Continuous-wave 148.4 nm Generation in Quasi-phase Matched BaMgF4
AU - Yuanzhuang Bu
AU - Xiangting Wang
AU - Ruiyin Gu
AU - Chongtai Liu
AU - Luxin Jiang
AU - Xinqing Ding
AU - Ke Zhang
AU - Yongkai Li
AU - Kemi Xu
PY - 2026
DA - 2026/10/13
PB - arXiv
DO - 10.48550/arxiv.2610.18519
UR - https://arxiv.org/abs/2610.18519
AB - We report continuous-wave (CW) vacuum-ultraviolet (VUV) generation at 148.4 nm by second-harmonic generation of 296.8-nm fundamental light in quasi-phase matched (QPM) BaMgF4 (BMF). At the incident power of 170 mW, a VUV output power of approximately 31 pW can be obtained. The quadratic dependence of the signal on the incident power in the QPM region and its attenuation in the ambient environment support the identification of VUV generation. The polarization dependence shows a sine-function shape with a 15% output attenuation from the maximum to the minimum. These results highlight the potential of BMF as a nonlinear medium for CW VUV generation.
ER -