Broadband reflectance coatings for vacuum ultraviolet application
Abstract
An experimental investigation has obtained results indicating that neither LaF3 nor LiYF4 are acceptable alternatives to MgF2 as coatings for vacuum-deposited aluminum mirrors from which high UV reflectance down to 1150 A is required. Nevertheless, LaF3 may prove useful in those specialized applications in which the suppression of lower wavelength emissions, such as the 1216-A hydrogen line, is desirable.
- Publication:
-
Applied Optics
- Pub Date:
- February 1987
- DOI:
- 10.1364/AO.26.000605
- Bibcode:
- 1987ApOpt..26..605H
- Keywords:
-
- Far Ultraviolet Radiation;
- Gratings (Spectra);
- Mirrors;
- Protective Coatings;
- Reflectance;
- Thin Films;
- Aluminum;
- Lanthanum Fluorides;
- Lithium Fluorides;
- Ultraviolet Spectra;
- Vacuum Deposition;
- Yttrium Compounds;
- Optics;
- COATINGS;
- THIN FILMS;
- ULTRAVIOLET: VACUUM