Method for producing fluoride crystal
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United States of America Patent
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Dec 18, 2012
Grant Date -
Jan 6, 2011
app pub date -
Aug 19, 2010
filing date -
Apr 23, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Provided is an apparatus capable of producing a fluoride crystal in a very short period of time, and a method suitable for producing a fluoride crystal using the apparatus. The apparatus comprises a chamber, a window material, and the like, and is modified such that it can evacuate air from the chamber to provide a high degree vacuum there. The apparatus further includes a crucible, which has a perforation at its bottom. The capillary portion of the perforation is adjusted to facilitate the contact of a seed crystal with a melt. By using the apparatus it is possible to stably produce high quality single crystals of fluorides in a short period of time.
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