| 简介 |
A target for ultraviolet light generation 20A includes a sapphire substrate 21 that transmits ultraviolet light UV, an interlayer 22 that is in contact with the sapphire substrate 21, includes oxygen atoms and aluminum atoms in a composition, and transmits ultraviolet light UV, and a luminous layer 23 that is provided on the interlayer 22, includes oxide crystals containing rare earth elements to which an activator agent is added, and receives electron beams EB so as to generate ultraviolet light UV. |
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