OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 31 — Nov. 1, 1998
  • pp: 7320–7326

Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes

Jane Hodgkinson, Mark Johnson, and John P. Dakin  »View Author Affiliations


Applied Optics, Vol. 37, Issue 31, pp. 7320-7326 (1998)
http://dx.doi.org/10.1364/AO.37.007320


View Full Text Article

Enhanced HTML    Acrobat PDF (119 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Visible-light-emitting diodes of three different colors have been used to detect an absorbing compound (potassium permanganate) in trace quantities in aqueous solution. Photothermal absorption in a closed cell caused deflection of a water meniscus held at a small pinhole. The displacement was monitored with optical-fiber interferometry. The technique was limited by LED emission intensities and environmental acoustic noise, giving minimum detectable absorption coefficients of 2 × 10-4 cm-1 at 478 and 658 nm and 3 × 10-4 cm-1 at 524 nm. The magnitude and form of meniscus deflection signals were shown to be in good agreement with theory.

© 1998 Optical Society of America

OCIS Codes
(010.7340) Atmospheric and oceanic optics : Water
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(230.3670) Optical devices : Light-emitting diodes
(300.1030) Spectroscopy : Absorption
(300.6430) Spectroscopy : Spectroscopy, photothermal

History
Original Manuscript: January 5, 1998
Revised Manuscript: May 12, 1998
Published: November 1, 1998

Citation
Jane Hodgkinson, Mark Johnson, and John P. Dakin, "Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes," Appl. Opt. 37, 7320-7326 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-31-7320


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. A. Rosencwaig, Photoacoustics and Photoacoustic Spectroscopy (Wiley, New York, 1980).
  2. Y.-H. Pao, Optoacoustic Spectroscopy and Detection (Academic, New York, 1977).
  3. C. K. N. Patel, A. C. Tam, “Pulsed optoacoustic spectroscopy of condensed matter,” Rev. Mod. Phys. 53, 517–550 (1981). [CrossRef]
  4. C. Saloma, A. J. de Vera, “Photoacoustic depth profiling by cross-correlation using a GaAs light emitting diode,” Appl. Opt. 30, 2393–2397 (1991). [CrossRef] [PubMed]
  5. C. Viappiani, G. Rivera, “Use of LEDs as light sources in photoacoustic spectroscopy,” Meas. Sci. Tech. 1, 1257–1259 (1990). [CrossRef]
  6. J. W. Chey, P. Sultan, H. J. Gerritsen, “Resonant photoacoustic detection of methane in nitrogen using a room temperature infrared light-emitting diode,” Appl. Opt. 26, 3192–3194 (1987). [CrossRef] [PubMed]
  7. J. Hodgkinson, M. Johnson, J. P. Dakin, “Photothermal detection of trace compounds in water, using the deflection of a water meniscus,” Meas. Sci. Tech. 9, 1316–1323 (1998). [CrossRef]
  8. S. E. Braslavsky, G. E. Heibel, “Time-resolved photothermal and photoacoustic methods applied to photoinduced processes in solution,” Chem. Rev. 92, 1381–1410 (1992). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited