AN INTRODUCTION TO FOURIER SPECTROSCOPY.
Abstract
Fourier spectroscopy is a technique discovered by Michelson in 1891 that recently began its renaissance with the advent of high-speed digital computers. Examples of results that were obtained with Fourier spectroscopic techniques to measure spectra of the planets in the near-infrared and spectra of gases in the far infrared are shown. The principles of Fourier spectroscopy are explained along with comments on practical techniques. A brief description of the computational techniques are given and a comparison of the advantages and disadvantages of Fourier spectroscopy versus conventional grating spectroscopy is made. The Aerospace Corporation's far-infrared, lamellar-grating interferometer is described and some results obtained while using it are shown. The prospects for the future of Fourier spectroscopy are also discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1970
- Accession Number
- AD0704588
Entities
People
- Richard T. Hall
Organizations
- The Aerospace Corporation