Na黄光的相干长度测量与原子发光时间的估计

摘要

The wavelength of Na lights and the coherent length were measured by using Michelson interferome-ter and the wavelength difference was obtained. The result obtained by Michelson interferometer is consistent with that of grating diffraction. Meanwhile the luminescent time and the length of wave train were estimated for Na atoms.%利用迈克尔逊干涉仪测量了Na黄光的波长、相干长度,获得了波长差. 与光栅衍射方法获得的Na黄光的波长、波长差的进行比较,结果表明利用迈克尔逊干涉仪测量Na黄光波长、波长差与光栅衍射方法测量结果一致;同时,利用相干长度的结果,估算了Na原子发光的延续时间和Na原子发出的一个波列的长度.