part of Fabry-Perot etalon (section?)
part of Fabry-Perot etalon (section?) used c. 1965 to measure laser wavelength relative to the Krypton 86 lamp
- Nuclear Physics
- Object Number:
quadrant section: 47 mm x 72 mm x 39 mm, ,
overall (assembled): 80 mm x 70 mm x 65 mm, , .95kg
2 glass discs: 12 mm x x , 44 mm,
metal cylinder: 56 mm x x , 36 mm,
- National Physical Laboratory.
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