Abstract

A small cryogenic Fabry–Perot étalon was fabricated for the far-infrared region. This design used freestanding metal meshes for the reflecting elements. Using a combination of gold-coated copper mesh on stainless steel, we reproduced the spacing to 1 part in 10⁶ with repeated cooling. The properties and methods used for alignment and calibration are presented.

© 1991 Optical Society of America

Design and performance of cryogenic, scanning Fabry–Perot interferometers for the Long-Wavelength Spectrometer on the Infrared Space Observatory

G. R. Davis, I. Furniss, W. A. Towlson, P. A. R. Ade, R. J. Emery, W. M. Glencross, D. A. Naylor, T. J. Patrick, R. C. Sidey, and B. M. Swinyard
Appl. Opt. 34(1) 92-107 (1995)

Fast-Scanning Far-Infrared Fabry-Perot Interferometer

D. S. Komm, R. A. Blanken, and P. Brossier
Appl. Opt. 14(2) 460-464 (1975)

Silicon-gap Fabry–Perot filter for far-infrared wavelengths

J. J. Bock, M. Kawada, H. Matsuhara, P. L. Richards, and A. E. Lange
Appl. Opt. 34(19) 3651-3657 (1995)

Interference Filters and Fabry-Perot Interferometers for the Far Infrared

K. F. Renk and L. Genzel
Appl. Opt. 1(5) 643-648 (1962)

Scanning Fabry-Perot interferometer: performance and optimum use in the far infrared range

P. Belland and J. C. Lecullier
Appl. Opt. 19(12) 1946-1952 (1980)