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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 22 — Aug. 1, 2007
  • pp: 5119–5128

Ultraviolet characterization of integrating spheres

Ping-Shine Shaw, Zhigang Li, Uwe Arp, and Keith R. Lykke  »View Author Affiliations


Applied Optics, Vol. 46, Issue 22, pp. 5119-5128 (2007)
http://dx.doi.org/10.1364/AO.46.005119


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Abstract

We have studied the performance of polytetrafluoroethylene integrating spheres in the ultraviolet (UV) region with wavelengths as short as 200   nm . Two techniques were used for this study; first, the spectral throughput of an integrating sphere irradiated by a deuterium lamp was analyzed by a monochromator. Second, a UV laser beam was directed into an integrating sphere, and spectrally dispersed laser induced fluorescence was studied. Significant absorption and fluorescence features were observed in the UV region and attributed to the contamination in the integrating sphere. We demonstrate that integrating spheres are easily contaminated by environmental pollutants such as polycyclic aromatic hydrocarbons emitted from engine exhaust. Baking of the contaminated integrating sphere can reverse some but not all of the effects caused by contaminants. The implications for using integrating spheres for UV measurement are discussed.

© Optical Society of America

OCIS Codes
(120.3150) Instrumentation, measurement, and metrology : Integrating spheres
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: February 20, 2007
Manuscript Accepted: March 26, 2007
Published: July 9, 2007

Citation
Ping-Shine Shaw, Zhigang Li, Uwe Arp, and Keith R. Lykke, "Ultraviolet characterization of integrating spheres," Appl. Opt. 46, 5119-5128 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-22-5119


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References

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  15. Certain commercial equipment, instruments, or materials are identified in this paper to foster understanding. Such identification does not imply recommendation or endorsement by the National Institute of Standards and Technology, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose.
  16. See, for example, D. Cox, J. M. Key, M. S. Lai, J. R. Sutherland, M. R. Zahn, and J. M. Arrington, "On-line supercritical fluid extraction synchronous luminescence spectroscopy: a screening method for polycyclic aromatic hydrocarbons," J. Under. Chem. Res. 2, 39-42 (2005) and references therein.
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  20. E. Clar, Polycyclic Hydrocarbons (Academic, 1964).
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  22. J. B. Birks, Photophysics of Aromatic Molecules (Wiley, 1970).

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