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Applied Optics

Applied Optics


  • Vol. 31, Iss. 24 — Aug. 20, 1992
  • pp: 4998–5002

Novel étalon fringe rejection technique for laser absorption spectroscopy

H. C. Sun and E. A. Whittaker  »View Author Affiliations

Applied Optics, Vol. 31, Issue 24, pp. 4998-5002 (1992)

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When used for trace-gas detection, laser absorption spectroscopy is usually limited by false absorption signals that are traceable to interferometric effects induced by windows and other pairs of optical surfaces. Here we introduce a new technique that can selectively reject these étalon fringes while preserving the true absorption signal over a wide range of étalon free spectral range to absorption linewidth ratios. We present a theoretical analysis and experimental verification by using a tunable lead salt diode laser.

© 1992 Optical Society of America

Original Manuscript: October 30, 1991
Published: August 20, 1992

H. C. Sun and E. A. Whittaker, "Novel étalon fringe rejection technique for laser absorption spectroscopy," Appl. Opt. 31, 4998-5002 (1992)

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  1. J. Wormhoudt, A. C. Stanton, A. D. Richards, H. H. Sawin, “Atomic chlorine concentration and gas temperature measurements in a plasma etching reactor,” J. Appl. Phys. 61, 142–148 (1987). [CrossRef]
  2. D. E. Cooper, C. B. Carlisle, “High-sensitivity FM spectroscopy with a lead-salt diode laser,” Opt. Lett. 13, 719–721 (1988). [CrossRef] [PubMed]
  3. C. B. Carlisle, D. E. Cooper, H. Preier, “Quantum noise-limited FM spectroscopy with a lead-salt diode laser,” Appl. Opt. 28, 2567–2576 (1989). [CrossRef] [PubMed]
  4. C. R. Webster, “Brewster-plate spoiler: a novel method for reducing the amplitude of interference fringes that limit tunable-laser absorption,” J. Opt. Soc. Am. B 2, 1464–1470 (1985). [CrossRef]
  5. J. A. Silver, A. C. Stanton, “Optical interference fringe reduction in laser absorption experiments,” Appl. Opt. 27, 1914–1916 (1988). [CrossRef] [PubMed]
  6. J. Reid, M. El-Sherbiny, B. K. Garside, E. A. Ballik, “Sensitivity limits of a tunable diode laser spectrometer, with application to the detection of NO2 at the 100-ppt level,” Appl. Opt. 19, 3349–3354 (1980). [CrossRef] [PubMed]
  7. D. T. Cassidy, J. Reid, “Harmonic detection with tunable diode lasers—two tone modulation,” Appl. Phys. B 29, 279–285 (1982). [CrossRef]
  8. G. C. Bjorklund, “Frequency-modulation spectroscopy: a new method for measuring weak absorptions and dispersion,” Opt. Lett. 5, 15–17 (1980). [CrossRef] [PubMed]
  9. M. Gehrtz, G. C. Bjorklund, E. A. Whittaker, “Quantum-limited laser frequency-modulation spectroscopy,” J. Opt. Soc. Am. B 2, 1510–1525 (1985). [CrossRef]
  10. E. A. Whittaker, M. Gehrtz, G. C. Bjorklund, “Residue amplitude modulation in laser electro-optic phase modulation,” J. Opt. Soc. Am. B 2, 1320–1326 (1985). [CrossRef]
  11. M. Gehrtz, W. Lenth, A. Y. Young, H. S. Johnston, “High-frequency-modulation spectroscopy with a lead-salt diode laser,” Opt. Lett. 11, 132–134 (1986). [CrossRef] [PubMed]
  12. H. C. Sun, E. A. Whittaker, “Diode laser spectroscopy for plasma processing diagnostics” in LEOS ’90 Conference Proceedings, J. Andrews, ed. (Institute of Electrical and Electronics Engineers, New York, 1990), pp. 577–578.
  13. G. Guelachvili, K. N. Rao, Handbook of Infrared Standards With Spectral Maps and Transition Between 3 and 2600 μm (Academic, Orlando, Fla., 1986), pp. 280–281.
  14. E. A. Whittaker, C. M. Shum, H. Grebel, H. Lotem, “Reduction of residual amplitude modulation in frequency-modulation spectroscopy by using harmonic frequency modulation,” J. Opt. Soc. Am. B 5, 1253–1256 (1988). [CrossRef]

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