Analysis of high-resolution spectra from a hybrid interferometric/dispersive spectrometer [electronic resource]
Fabry–Perot;High-Resolution Spectroscopy;Fringe Analysis;Laser-Induced Breakdown Spectroscopy.
Saved in:
| Online Access: |
Online Access (via OSTI) |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. National Nuclear Security Administration ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2015.
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| Subjects: |
| Summary: | Fabry–Perot;High-Resolution Spectroscopy;Fringe Analysis;Laser-Induced Breakdown Spectroscopy. |
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| Abstract: | To more fully take advantage of a low-cost, small footprint hybrid interferometric/dispersive spectro-meter, a mathematical reconstruction technique was developed to accurately capture the high-resolution and relative peak intensities from complex spectral patterns. A Fabry–Perot etalon was coupled to a Czerny–Turner spectrometer, leading to increased spectral resolution by more than an order of magni-tude without the commensurate increase in spectrometer size. Measurement of the industry standard Hg 313.1555/313.1844 nm doublet yielded a ratio of 0.682, which agreed well with an independent mea-surement and literature values. The doublet separation (29 pm) is similar to the U isotope shift (25 pm) at 424.437 nm that is of interest to monitoring nuclear nonproliferation activities. Additionally, the technique was applied to LIBS measurement of the mineral cinnabar (HgS) and resulted in a ratio of 0.682. This reconstruction method could enable significantly smaller, portable high-resolution instru-ments with isotopic specificity, benefiting a variety of spectroscopic applications. |
| Item Description: | Published through SciTech Connect. 12/01/2015. ": S0030401815300717" Optics Communications 357 C ISSN 0030-4018 AM. Ko, Phyllis; Scott, Jill; Jovanovic, Igor. Univ. of Michigan, Ann Arbor, MI (United States) |
| Physical Description: | p. 95-99 : digital, PDF file. |