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Use of transition-metal-doped sapphire crystals to calibrate and thermally compensate fluorescent-lifetime chemical detectors

Use of transition-metal-doped sapphire crystals to calibrate and thermally compensate fluorescent-lifetime chemical detectors
Use of transition-metal-doped sapphire crystals to calibrate and thermally compensate fluorescent-lifetime chemical detectors
The paper describes the first use of a plug-in Ti3+ - doped sapphire probe to act as a fluorescence-lifetime calibration aid. It has been used for validating a blue-LED-based optoelectronic system designed to interrogate a Ru2+ dye oxygen sensor. Ti-sapphire has a compatible absorption and fluorescence spectrum and a similar fluorescence lifetime to Ru2+ dye, and its lifetime can be varied, in a predictable manner, by heating or cooling. Use of a small Cr3+ - doped sapphire crystal (ruby), close to the Ru2+ dye indicator at the probe tip, is also proposed as a temperature monitor, and has, for the first time, been interrogated using the same light source, detector and phase-delay electronics as the Ru2+ dye chemical probe.
Austin, E.A.
5e62fbb2-313b-4368-a371-2d8cb7978109
Dakin, J.P.
490d5873-c444-423b-8d83-c49f118dc4b5
Strong, A.P.
b6d72d5e-d003-4a1e-9a5a-6a9f559ba067
Austin, E.A.
5e62fbb2-313b-4368-a371-2d8cb7978109
Dakin, J.P.
490d5873-c444-423b-8d83-c49f118dc4b5
Strong, A.P.
b6d72d5e-d003-4a1e-9a5a-6a9f559ba067

Austin, E.A., Dakin, J.P. and Strong, A.P. (2000) Use of transition-metal-doped sapphire crystals to calibrate and thermally compensate fluorescent-lifetime chemical detectors. Europt(R)ode V. 16 - 19 Apr 2000.

Record type: Conference or Workshop Item (Paper)

Abstract

The paper describes the first use of a plug-in Ti3+ - doped sapphire probe to act as a fluorescence-lifetime calibration aid. It has been used for validating a blue-LED-based optoelectronic system designed to interrogate a Ru2+ dye oxygen sensor. Ti-sapphire has a compatible absorption and fluorescence spectrum and a similar fluorescence lifetime to Ru2+ dye, and its lifetime can be varied, in a predictable manner, by heating or cooling. Use of a small Cr3+ - doped sapphire crystal (ruby), close to the Ru2+ dye indicator at the probe tip, is also proposed as a temperature monitor, and has, for the first time, been interrogated using the same light source, detector and phase-delay electronics as the Ru2+ dye chemical probe.

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Published date: 2000
Additional Information: PKC9
Venue - Dates: Europt(R)ode V, 2000-04-16 - 2000-04-19

Identifiers

Local EPrints ID: 16967
URI: http://eprints.soton.ac.uk/id/eprint/16967
PURE UUID: 697acdd4-cfeb-4c85-abd9-c32a1ac21b5d

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Date deposited: 22 Aug 2005
Last modified: 17 Jul 2017 16:42

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Contributors

Author: E.A. Austin
Author: J.P. Dakin
Author: A.P. Strong

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