Title: v<<c
1?????????????
????????????????????????
??? ???
?????????
2012.8.17 ?? ??
2????
3????
4????
?????????????
????
???? ??? vltltc
VS
5????
????
???? ????
???? ????
VS
?????? Electromagnetically induced transparency
(EIT) ??????????????????
(Kocharovskaya,Harris,1991)
?????? Active Raman gain (ARG)
?????????????????
6????
1.??????(EIT)
??????????
- ?????????????,??????????????????, ???????????,
???????? Kocharovskaya,Harris, 1991
- ???????, ???????????????????, ?????????, ?????????
????????????
7EIT ???????????
????
- ???????????
- ????? Harris Y. Zhu
- ????????
- ????? Fleischhauer Lukin Hau
- ????? Phillips
- ????? Kerr ???
- ??????? Harris Hemmer Lukin Deng
Wu - ???? Wu Deng Huang
- ????????????? Ottaviani Petrosyan
- ????
- ??????? Lukin
- ?????? Ye
- ?????? Pu Zhang
- ???????? Xiao
EIT Electromagnetically induced transparency
8????
2 ???????? (Active Raman gain ARG)
L?
N ?
???,?????1gt?,??????????,???????????????,?????????
?,?2gt????????,????????????????
9??ARG???
????
L ?
N ?
ARGActive Raman gain
10ARG ?????
????
- 1. ????????? L.J.Wang,et al,Nature,2000.
- 2. ??????????,?????????
- 3. ? Kerr ??? L.Deng,et al,PRL,2007
- 4. ???????????
ARGActive Raman gain
11????
3.??????????????????
(j1,2,3) ?
??????????
?????
??????
??
????????
12????
???????
??????
??
????? Rabi ??
?????????????
13????
??? Maxwell ??
???????????????????,??
???????????????,?
14????
15????
3.?????
11 ???(????) ??????(????).???????????
21 ?????(???Kerr????????????????????)
1.??????????
2.?-??????????
3.?????Kerr?????????
4.??????(metamaterial??????) (21 D
????????)
31 ???? ???21????!
???????????Kerr?????,?????????31
????????????????? 31 ????,???????????!
16????
17????
Rb 87 D1 ?
18????
??????????
19????
??1?????
??2?????
20????
????
????????
????????????????
21????
22????
??
(1)
(2)
??
23????
Vakhitov-Kolololov ??
24?????????
????
Nature, 406,277(2000).
25?????????
????
Array of waveguide PRL.105.263901(2010)
26????
27???????????
????
28????
29????
30???????????
????
31????
32????
33???????????
????
34????
35????
36???????????
????
37? ?
38??
- 1. ????ARG??????????????????
- 2. ????(???????)??????????
- 3. ???????
- 4. ???????????
ARGActive Raman gain
39????
- Hui-jun Li, Yuan-po Wu, and Guoxiang Huang,
Stable weak-light ultraslow spatiotemporal
solitons via atomic coherence, Phys. Rev. A
84(2011)033816 - Hui-jun Li, Liangwei Dong, C. Hang, and G. Huang,
Gain-assisted high-dimensional self-trapped laser
beams at very low light levels, Phys. Rev. A
83(2011)023816 - Hui-jun Li, Yuan-po Wu, and Guoxiang Huang,
Stable Superluminal Light Bullets and Vortices at
Weak Light Level, to be submitted - ????http//course.zjnu.cn/hjli/
40???????
- ???????????????????Anderson???
???????
41? ? ?
????? (??????) ????? (??NIST) ?????(??????) ????(?
?????) ?????(??????) ???(????????)
42 43(No Transcript)