Method for making an oriented optical fluoride crystal blank
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 diffracte...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | 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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