Concerning the Spatial Heterodyne Spectrometer [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2016. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 1,829-1,839 : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A modified Spatial Heterodyne Spectrometer (SHS) is used for measuring atomic emission spectra with high resolution. This device is basically a Fourier Transform Spectrometer, but the Fourier transform is taken in the directions perpendicular to the optical propagation and heterodyned around one preset wavelength. In recent descriptions of this device, one specific phenomenon - the tilt of the energy front of wave packets when diffracted from a grating - was neglected. This led to an overestimate of the resolving power of this spectrograph, especially in situations when the coherence length of the radiation under test is in the order of the effective aperture of the device. In conclusion, the limits of usability are shown here together with some measurements of known spectral lines.
- Published through SciTech Connect., 01/22/2016., Optics Express 24 2 ISSN 1094-4087; OPEXFF AM, Matthias Lenzner; Jean -Claude Diels., and Southwest Sciences, Inc., Santa Fe, NM (United States)
- Funding Information:
View MARC record | catkey: 24049296