...In anisotropic crystals, even if the direction of light propagation is specified, two types of light exist with different speeds. In this case, the phase velocity given by the above formula for each type of light is different from the speed at which the energy of the light propagates. The phase velocity is called the normal velocity, and the energy propagation speed is called the ray velocity. Light [Akira Misu] *Some of the terminology that mentions "ray velocity" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,異方性の結晶中では光の伝わる方向を指定しても異なる速さの2種の光が存在する。この場合,それぞれの光について上の式で与えられる位相速度は光のエネルギーが伝わる速さとは異なり,位相速度を法線速度,エネルギーの伝搬速度を光線速度ray velocityと呼ぶ。光【三須 明】 ※「ray velocity」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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