Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Generation of coherent blue light via bichromatic pumping in cesium vapor. / Ge, Guiyuan; Tian, Li; Zhang, Guoqing; Zheng, Ningxuan; Liu, Wenliang; Совков, Владимир Борисович; Wu, Jizhou; Li, Yuqing; Fu, Yongming; Li, Peng; Ma, Jie; Xiao, Liantuan; Jia, Suotang.
в: Frontiers of Physics, Том 18, № 4, 42302, 06.03.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Generation of coherent blue light via bichromatic pumping in cesium vapor
AU - Ge, Guiyuan
AU - Tian, Li
AU - Zhang, Guoqing
AU - Zheng, Ningxuan
AU - Liu, Wenliang
AU - Совков, Владимир Борисович
AU - Wu, Jizhou
AU - Li, Yuqing
AU - Fu, Yongming
AU - Li, Peng
AU - Ma, Jie
AU - Xiao, Liantuan
AU - Jia, Suotang
PY - 2023/3/6
Y1 - 2023/3/6
N2 - Diode-pumped alkali lasers, possessing high efficiency and narrow linewidth, can provide feasible solutions for wavelength ranges difficult to reach by commercial lasers. In this study, we investigate a generation of coherent blue light (CBL) via four-wave mixing (FWM)-based up-conversion processes in cesium (Cs) vapor. A bichromatic pumping scheme with 852- and 917-nm lasers drives the Cs atoms to the 6D5/2 excited level, followed by cascaded decay of 6D5/2 → 7 P3/2 → 6 S1/2, producing 456-nm CBL under phase matching conditions. The fluorescence in multiple bands from blue to near- and far-infrared in the FWM process is demonstrated under different experimental conditions. To optimize the experimental parameters, we investigate the dependence of 456-nm CBL on the vapor temperature, frequency, and intensity of the two pump lasers. A maximum power of 2.94 mW is achieved with pump powers of 430 mW (for 852 nm) and 470 mW (for 917 nm). The corresponding conversion efficiency is 1.5%/W, three-fold higher than those in previous studies. Our results can contribute to fundamental research on atom—photon interactions and quantum metrology. [Figure not available: see fulltext.].
AB - Diode-pumped alkali lasers, possessing high efficiency and narrow linewidth, can provide feasible solutions for wavelength ranges difficult to reach by commercial lasers. In this study, we investigate a generation of coherent blue light (CBL) via four-wave mixing (FWM)-based up-conversion processes in cesium (Cs) vapor. A bichromatic pumping scheme with 852- and 917-nm lasers drives the Cs atoms to the 6D5/2 excited level, followed by cascaded decay of 6D5/2 → 7 P3/2 → 6 S1/2, producing 456-nm CBL under phase matching conditions. The fluorescence in multiple bands from blue to near- and far-infrared in the FWM process is demonstrated under different experimental conditions. To optimize the experimental parameters, we investigate the dependence of 456-nm CBL on the vapor temperature, frequency, and intensity of the two pump lasers. A maximum power of 2.94 mW is achieved with pump powers of 430 mW (for 852 nm) and 470 mW (for 917 nm). The corresponding conversion efficiency is 1.5%/W, three-fold higher than those in previous studies. Our results can contribute to fundamental research on atom—photon interactions and quantum metrology. [Figure not available: see fulltext.].
KW - bichromatic pumping
KW - coherent blue beam
KW - conversion
KW - four wave mixing
UR - https://www.mendeley.com/catalogue/a8ec33df-7a0c-3d41-9734-292d5ab7dc4a/
U2 - 10.1007/s11467-022-1255-1
DO - 10.1007/s11467-022-1255-1
M3 - Article
VL - 18
JO - Frontiers of Physics
JF - Frontiers of Physics
SN - 2095-0462
IS - 4
M1 - 42302
ER -
ID: 103479485