In an optical system, an optical element that creates a specified phase difference between the polarized components of orthogonal light. Those that shift the phase of the incident light by 1/4 and 1/2 wavelength are called quarter-wave plates and half-wave plates, respectively. Birefringent materials such as calcite are used. Phase plate. Phase shifter. Retardation plate. Source: About Shogakukan Digital Daijisen Information | Legend |
光学系において、直交する光の偏光成分に所定の位相差を生じさせる光学素子。入射光に対して1/4、1/2波長分の位相を変えるものを、それぞれ四分の一波長板、半波長板とよぶ。方解石などの複屈折材料が用いられる。位相板。移相器。リターデーションプレート。
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