摘要
研究了不同序列拉曼光脉冲对原子重力仪灵敏度的影响.结果表明,通过调节脉冲间隔可以改善原子干涉重力仪的灵敏度.在标准配置下,只考虑重力及一阶重力梯度时,三脉冲序列(π/2-π-π/2)的原子干涉重力仪具有较大的灵敏度,四脉冲序列(π/2-π-π-π/2)的原子干涉重力仪对重力不敏感,可用来测量重力梯度,五脉冲作用会降低原子干涉重力仪的灵敏度.
We investigate the dependence of the sensitivity of atom interferometer gravimeter on the Raman laser pulse sequence. The sensitivity of atom gravimeter can be adjusted by changing the pulse duration. Under the standard pulse configuration condition,the atom interferometer with four pulses is insensitive to the gravity if only gravity and its first order gradient are taken into account. The three-pulse Raman atom interferometer gravimeter displays best sensitivity. Atom interferometers with more than four Raman pulses show poorer sensitivity.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第12期8230-8235,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:10774160
10827404)
国家重点基础研究发展计划(批准号:2005CB724505-1)资助的课题~~
