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.
49244605-390e-4a67-a184-58434ba30e7c
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
Strong, A.P.
b6d72d5e-d003-4a1e-9a5a-6a9f559ba067
2000
Austin, E.A.
49244605-390e-4a67-a184-58434ba30e7c
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
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, Lyon, France.
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.
More information
Published date: 2000
Additional Information:
PKC9
Venue - Dates:
Europt(R)ode V, Lyon, France, 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
Catalogue record
Date deposited: 22 Aug 2005
Last modified: 15 Mar 2024 05:50
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Contributors
Author:
E.A. Austin
Author:
J.P. Dakin
Author:
A.P. Strong
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