Photon recoil momentum in dispersive media

被引：147
|
作者：
Campbell, GK
Leanhardt, AE
Mun, J
Boyd, M
Streed, EW
Ketterle, W
Pritchard, DE
机构：
[1] MIT, MIT Harvard Ctr Ultracold Atoms, Elect Res Lab, Cambridge, MA 02139 USA
[2] MIT, Dept Phys, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.94.170403
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A systematic shift of the photon recoil momentum due to the index of refraction of a dilute gas of atoms has been observed. The recoil frequency was determined with a two-pulse light grating interferometer using near-resonant laser light. The results show that the recoil momentum of atoms caused by the absorption of a photon is nhk, where n is the index of refraction of the gas and k is the vacuum wave vector of the photon. This systematic effect must be accounted for in high-precision atom interferometry with light gratings.
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页数：4
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