光学活性（见旋光异构）介质在其吸收峰附近表现出来的特征的旋光色散(ORD) （见旋光谱）和（或）圆二色性(CD)现象。每个跃迁都对应一个科顿效应。
结果说明聚合物在园二色谱中正负科顿效应都有强的园二色信号。
The results indicated that the polymers exhibited stronger circular dichroism (CD)signals with positive and negative Cotton effect in their CD spectra.
总的双折射率的平方为科顿·莫顿效应所引起的双折射率平方与法拉第效应所产生的圆双折射率平方和。
The sum of the square of birefringence in the Cotton-Moutton effect and the square of birefringence in the Faraday effect is the square of total birefringence in magnetic-optic effect.
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