In this work,we demonstrate the phonon-assisted vibronic lasing of a Yb-doped sesquioxide Yb:LuScO_(3)crystal.The electron–phonon coupling process was analyzed and the Huang-Rhys factor S was calculated to be 0.75 as...In this work,we demonstrate the phonon-assisted vibronic lasing of a Yb-doped sesquioxide Yb:LuScO_(3)crystal.The electron–phonon coupling process was analyzed and the Huang-Rhys factor S was calculated to be 0.75 associated with the fluorescence spectrum at room temperature.By a rational cavity design to suppress lasing below 1100 nm,a continuously spectral tunability from 1121 to 1136 nm was realized in a Yb:LuScO_(3)laser,which represents the longest achievable wavelength in the Yb-doped sesquioxide lasers.Moreover,the Raman spectrum indicated that the Egphonon mode with a frequency of 472 cm^(-1)was mainly devoted to the phonon-assisted transition process.This work broadens the achievable laser spectrum of Yb-doped sesquioxide,and suggests that the multiphonon–electron coupling strategy should be universal for other laser materials.展开更多
Praseodymium-ion-doped gain materials have the superiority of lasing at various visible wavelengths directly.Simple and compact visible lasers are booming with the development of blue laser diodes in recent years.In t...Praseodymium-ion-doped gain materials have the superiority of lasing at various visible wavelengths directly.Simple and compact visible lasers are booming with the development of blue laser diodes in recent years.In this Letter, we demonstrate the watt-level red laser with a single blue laser diode and Pr:YLiF4 crystal.On this basis,the passively Q-switched pulse lasers are obtained with monolayer graphene and Co:ZnO thin film as the Q-switchers in the visible range.展开更多
基金supported by the National Key Research and Development Program of China(Nos.2021YFB3601504 and 2021YFA0717800)the National Natural Science Foundation of China(Nos.52002220,92163207,52025021,and 51890863)the Future Plans of Young Scholars at Shandong University。
文摘In this work,we demonstrate the phonon-assisted vibronic lasing of a Yb-doped sesquioxide Yb:LuScO_(3)crystal.The electron–phonon coupling process was analyzed and the Huang-Rhys factor S was calculated to be 0.75 associated with the fluorescence spectrum at room temperature.By a rational cavity design to suppress lasing below 1100 nm,a continuously spectral tunability from 1121 to 1136 nm was realized in a Yb:LuScO_(3)laser,which represents the longest achievable wavelength in the Yb-doped sesquioxide lasers.Moreover,the Raman spectrum indicated that the Egphonon mode with a frequency of 472 cm^(-1)was mainly devoted to the phonon-assisted transition process.This work broadens the achievable laser spectrum of Yb-doped sesquioxide,and suggests that the multiphonon–electron coupling strategy should be universal for other laser materials.
基金supported by the National Key Research and Development Program of China(Nos.2016YFB0701002and 2016YFB1102301)the National Natural Science Foundation of China(NSFC)(Nos.51772173,51632004,51472257,and 51872307)
文摘Praseodymium-ion-doped gain materials have the superiority of lasing at various visible wavelengths directly.Simple and compact visible lasers are booming with the development of blue laser diodes in recent years.In this Letter, we demonstrate the watt-level red laser with a single blue laser diode and Pr:YLiF4 crystal.On this basis,the passively Q-switched pulse lasers are obtained with monolayer graphene and Co:ZnO thin film as the Q-switchers in the visible range.
