Modulated Photon Emission of Eu<sup>3+</sup> in Microsphere Cavity
Yang Yong; Han Zheng-Fu; Dong Chun-Hua; Xiao Yun-Feng; Guo Guang-Can; Yang Yong; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Han Zheng-Fu; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Dong Chun-Hua; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Xiao Yun-Feng; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Guo Guang-Can; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026
Журнал:
Chinese Physics Letters
Дата:
2006-09-01
Аннотация:
Fused silica microsphere with a few Eu<sup>3+</sup> ions on the equator is fabricated. The photon emission sharply modulated by whispering gallery (WG) modes is observed under excitation of 395 nm laser, which is in agreement with the prediction in theory. The quality factor of the WG modes in microsphere is estimated larger than 3000 from the emission spectrum, which is limited by our monochrometer. It proves that pumping Eu<sup>3+</sup> in microsphere cavity in free space is feasible, and this system seems suitable for realizing strong coupling in future quantum computation purposes.
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