実用的長さ標準としてのファブリ・ペローエタロン
(II)接着剤で反射鏡を接着したエタロンについての測定例
1967 年 33 巻 394 号 p. 709-713
詳細
1967 年 33 巻 394 号 p. 709-713
The wavelength of the light transmitted through an etalon of 20mm has been calibrated with two of the methods described in (I). The measured values coincide with each other to better than 1 × 10-7. The 20mm etalon is combined with a 2.3mm etalon to slice out a narrow spectral portion from a broad spectre of a high pressure mercury lamp. For the matching of the etalons, the shorter etalon is placed in an air tight chamber and its inside pressure is adjusted so that the intensity of the transmitted light becomes maximum. It is found that the effective wavelength varies with the inside pressure due to the imperfect flatness of the 20mm etalon. The stability of the etalon has been examined and it is found that the etalon is stable enough.
