Fresnel's rhomb

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

A rhombus or oblique parallelopiped of glass cut so that a ray of light entering one of its faces at right angles shall emerge at right angles at the opposite face, after undergoing within the rhombus, at other faces, two reflections. It is used to produce a ray circularly polarized from a plane-polarized ray, or the reverse.

日本語の意味

フレネルの菱形プリズム。光が一面から直入射すると、内側で他の面において2回の反射を受け、反対側の面から直出射するように仕上げられたガラス製の菱形または斜方の平行六面体であり、平面偏光を円偏光に、またはその逆に変換するために使用される。

英語の意味

A rhombus or oblique parallelopiped of glass cut so that a ray of light entering one of its faces at right angles shall emerge at right angles at the opposite face, after undergoing within the rhombus, at other faces, two reflections. It is used to produce a ray circularly polarized from a plane-polarized ray, or the reverse.

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The researcher rotated Fresnel's rhomb slowly to convert the plane-polarized laser beam into circular polarization.

研究者は、平面偏光のレーザー光を円偏光に変換するために切り出されたガラスの菱形をゆっくり回転させた。

詳細

意味（1）

A rhombus or oblique parallelopiped of glass cut so that a ray of light entering one of its faces at right angles shall emerge at right angles at the opposite face, after undergoing within the rhombus, at other faces, two reflections. It is used to produce a ray circularly polarized from a plane-polarized ray, or the reverse.

In Fresnel’s rhomb, whatever be the colour of the light, the retardation of the phase is exactly 90°, or the corresponding retardation in space is exactly λ⁄₄ whatever the value of λ may be.

詳細

Fresnel's rhombs （ plural ）