Method for making an oriented optical fluoride crystal blank

Details Method for making an oriented optical fluoride crystal blank Method for making an oriented optical fluoride crystal blank

2006-02-21

2006-02-21

Kunemund, Robert (Department: 1722)

Single-crystal, oriented-crystal, and epitaxy growth processes;

Apparatus

With means for measuring, testing, or sensing

C117S202000, C117S223000, C117S002000, C117S081000, C117S082000, C117S083000

Reexamination Certificate

active

07001462

ABSTRACT:
A method of making an oriented fluoride crystal blank for transmitting below 250 nm ultraviolet light includes irradiating a fluoride crystal blank with an x-ray beam, detecting the x-ray beams diffracted from the fluoride crystal blank, generating a diffraction pattern from the x-ray beam diffracted from the fluoride crystal blank, determining an angular deviation of an optical axis of the fluoride crystal blank from a specific crystallographic direction, and, if the angular deviation is not within a predefined range, modifying the fluoride crystal blank in a manner such that that the resultant angular deviation between the optical axis of the fluoride crystal blank from the specific crystallographic direction after modifying falls within the predefined range.

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The Laue Method, pp. 4 and 5 updated Jul. 25, 2000, The University of Liverpool, http://www.matter.org.uk/diffraction/x-ray/laue—method.htm.

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