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单词 Optical indicatrix
释义

Optical indicatrix

英语百科

Index ellipsoid

(重定向自Optical indicatrix)

In optics, an index ellipsoid is a diagram of an ellipsoid that depicts the orientation and relative magnitude of refractive indices in a crystal .

The equation for the ellipsoid is constructed using the electric displacement vector D and the dielectric constants. Defining the field energy W as

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