Optically active single crystal and fabrication process thereof

Details Optically active single crystal and fabrication process thereof Optically active single crystal and fabrication process thereof

1990-03-28

1992-07-21

Kunemund, Robert

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

1566171, 1566202, 1566203, 156DIG64, 156DIG65, 156DIG67, 156DIG79, C30B 2932, C30B 2934

Patent

active

051321009

ABSTRACT:
Disclosed herein is an optically active single crystal, which has both levo-rotatory portion and dextro-rotatory portion and is even in optical rotatory power and physical constants such as electrooptic constant and Farady constant. Its fabrication process is also disclosed, wherein a single crystal is grown in accordance with the crystal pulling method making use of a seed crystal comprising a levo-rotatory single crystal and a dextro-rotatory single crystal, which are joined to each other. The process permits fabrication of the above-mentioned optically active single crystal in a short period of time and with ease.

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Maier, "Rotation of the Plane of Polization by Single Crystals of Bismuth Silicate Bismuth Germanate", Izv. Akad Nauk USSR, Neorg. Mater 6(5) p. 1024.
Takano et al., "Classification of Twins", Mineralogical Journal, vol. 6, No. 5, pp. 375-382, Sep. 1971.

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