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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 46, Iss. 6 — Jun. 1, 1992
  • pp: 919–924

Determination of the Effective Depth for Double-Fiber Fluorometric Sensors

Zhong Yuan Zhu and M. Cecilia Yappert

Applied Spectroscopy, Vol. 46, Issue 6, pp. 919-924 (1992)


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Abstract

The relationship between the relative fluorescence signal excited and collected with a double-fiber optic sensor and the sample depth has been investigated. The complexity of the analytical expressions for the relative fluorescence signal and the effective depth was reduced by deriving a set of semi-empirical equations which can be evaluated in a simple fashion. These expressions take into account the configuration of the sensor, i.e., fiber diameter, acceptance angle, and separation between fibers. The expressions were tested with the use of double-fiber sensors with different diameters and separations between fibers. The reduction of the effective depth in solutions with significant absorbance was evaluated.

Citation
Zhong Yuan Zhu and M. Cecilia Yappert, "Determination of the Effective Depth for Double-Fiber Fluorometric Sensors," Appl. Spectrosc. 46, 919-924 (1992)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-46-6-919

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