Billings, Bruce H. Formerly, Special Assistant to the Ambassador for Science and Technology, Embassy of the United States of America, Taipei, Taiwan.
- Additional Readings
In some colored transparent crystals, the effect wherein the color is quite different in different directions through the crystals. In such a crystal the absorption of light is different for different polarization directions. Tourmaline offers one of the best-known examples of this phenomenon. In colored transparent tourmaline the effect may be so strong that one polarized component of a light beam is wholly absorbed, and the crystal can be used as a polarizer. For a fuller discussion of the effect See also: Dichroism; Polarized light; Trichroism
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