Because of the difference between the extraordinary and ordinary indices of refraction of the crystal,after passing the crystal,the two orthogonally polarized impulses will be different in phase.
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美
- 光線(xiàn)正入射到這一系統，通過(guò)起偏振器后的偏振光投射到晶體上時(shí)分解為互相正交的尋常光和非常光，兩束光由于折射率的不同經(jīng)過(guò)晶體時(shí)會(huì )有一定的位相差。
