Rotational frequency shift of a light beam
Rotational frequency shift of a light beam
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DOI：
10.1103/physrevlett.81.4828
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发表时间：
1998-11-30
影响因子：
8.6
通讯作者：
Padgett, MJ
中科院分区：
文献类型：
--
作者：
Courtial, J;Robertson, DA;Padgett, MJ
我们解释的旋转频率偏移的光束在经典条款和测量它使用毫米波源。位移等于每光子的总角动量乘以源和观测者之间的角速度。这类似于平移多普勒频移，其等于每个光子的动量乘以平移速度。我们表明，由于光束的自旋和轨道角动量分量的位移作用在一个添加剂的方式。[S0031 - 9007（98）07769 - 2]。
We explain the rotational frequency shift of a light beam in classical terms and measure it using a mm-wave source. The shift is equal to the total angular momentum per photon multiplied by the angular velocity between the source and observer. This is analogous to the translational Doppler shift, which is equal to the momentum per photon multiplied by the translational velocity. We show that the shifts due to the spin and orbital angular momentum components of the light beam act in an additive way. [S0031-9007(98)07769-2].