Time delay properties of a Fabry-Perot interferometer are investigated.We found that the group velocity of light through a Fabry-Pérot interferometer can be reduced to 10-4 of the light speed in vacuum and the ti...Time delay properties of a Fabry-Perot interferometer are investigated.We found that the group velocity of light through a Fabry-Pérot interferometer can be reduced to 10-4 of the light speed in vacuum and the time delay is 210 ns,when the reflectivity is 0.999 and the distance between two mirrors is 1cm.The system is analogous to the recently proposed one-dimensional photonic band-gap structures with a defect[Zhu et al.Opt.Commun.174(2000)139].展开更多
We experimentally study the generation and storage of double slow light pulses in a pr^3＋：Y2SiO5 crystal. Under electromagnetically induced transparency, a single signal pulse is stored in the spin coherence of the ...We experimentally study the generation and storage of double slow light pulses in a pr^3＋：Y2SiO5 crystal. Under electromagnetically induced transparency, a single signal pulse is stored in the spin coherence of the crystal. By simultaneously switching on two control fields to recall the stored information, the spin coherence is converted into two slow light pulses with distinct frequencies. Furthermore, the storage and controlled retrieval of double slow light pulses are obtained by manipulating the control fields. This study of double slow light pulses may have practical applications in information processing and all-optical networks.展开更多
A neatly controllable photonic band gap formed in a four-level tripod system in the solid material,Pr^(3+)-doped yttrium orthosilicate(Pr:YSO)is investigated.Driven by two standing waves,the sample is just like a phot...A neatly controllable photonic band gap formed in a four-level tripod system in the solid material,Pr^(3+)-doped yttrium orthosilicate(Pr:YSO)is investigated.Driven by two standing waves,the sample is just like a photonic crystal to the weak probe.Based on the numerical simulation and the analytic result we present a clear and full-scale view on the induced band gap in the inhomogeneously broadened tripod system.展开更多
文摘Time delay properties of a Fabry-Perot interferometer are investigated.We found that the group velocity of light through a Fabry-Pérot interferometer can be reduced to 10-4 of the light speed in vacuum and the time delay is 210 ns,when the reflectivity is 0.999 and the distance between two mirrors is 1cm.The system is analogous to the recently proposed one-dimensional photonic band-gap structures with a defect[Zhu et al.Opt.Commun.174(2000)139].
基金supported by the National Basic Research Program of China (Grant No.2011CB921603)the National Natural Science Foundation of China (Grant Nos.11074097,10904048,10974071,11004079,and 11004080)+1 种基金the Basic Research Program of Jilin Universitythe China Postdoctoral Science Foundation (Grant No.2011M500924)
文摘We experimentally study the generation and storage of double slow light pulses in a pr^3＋：Y2SiO5 crystal. Under electromagnetically induced transparency, a single signal pulse is stored in the spin coherence of the crystal. By simultaneously switching on two control fields to recall the stored information, the spin coherence is converted into two slow light pulses with distinct frequencies. Furthermore, the storage and controlled retrieval of double slow light pulses are obtained by manipulating the control fields. This study of double slow light pulses may have practical applications in information processing and all-optical networks.
基金Supported by the National Natural Science Foundation of China under Grant Nos 10774059,10904084the National Basic Research Program of China under Grant No 2006CB921103.
文摘A neatly controllable photonic band gap formed in a four-level tripod system in the solid material,Pr^(3+)-doped yttrium orthosilicate(Pr:YSO)is investigated.Driven by two standing waves,the sample is just like a photonic crystal to the weak probe.Based on the numerical simulation and the analytic result we present a clear and full-scale view on the induced band gap in the inhomogeneously broadened tripod system.
