Dr James Sharp

  • Lecturer (Systems Power and Energy)

telephone: 01413304324
email: James.Sharp@glasgow.ac.uk

Research interests

Research Interests

Single-Crystal Fibres

We currently have two facilities for the production of single crystal and optical fibres. Our work has focused mainly on refractory oxide materials such as sapphire, YAG, zirconia and some orthosilicates. Fibres are grown using the laser-heated pedestal growth (LHPG) method which allows us to work with a very wide range of materials.

Fibre Sensors for Extreme Environments

Fibre sensors capable of working in extreme environments unsuitable for conventional sensor technologies including (glass) optical fibre sensors are being developed. High melting point materials such as sapphire and yttria-stabilised zirconia (YSZ) are radiation hard and have excellent chemical robustness making them ideal for this application: e.g. sensors for temperature sensing in combustion systems (e.g. aircraft engine management) and in high dose nuclear settings. Fibre gratings, polarimetry, piezo-spectroscopic and fluorescence lifetime measurements have all be used as transduction mechanisms.

Scintillating Fibres for Radiation Detection and Imaging

Fibres of rare-earth doped orthosilicates have been produced for use as highly efficient radiation sensors. Application areas include high energy particle detection and medical imaging systems.

Fibre Laser and Upconversion Sources

Erbium doped materials have been grown, characterised and tested for fibre laser and upconversion applications. Ongoing work will examine other rare-earth species such as ytterbium, holmium, and thulium.

 

Within the School of Engineering

I currently act as the Academic Co-ordinator for the Mechancal degree programmes run in partnership with the Singapore Institute of Technology (SIT). I am also the adminstrator for the school web pages. My teaching duries can be found in the tab above.

 

Teaching

Publications

List by: Type | Date

Jump to: 2017 | 2015 | 2012 | 2011 | 2010 | 2006 | 2004 | 2003 | 2002 | 2001 | 1999 | 1996
Number of items: 16.

2017

Corton, J. et al. (2017) The impact of biomass feedstock composition and pre-treatments on tar formation during biomass gasification. In: Singh, L. K. and Chaudhary, G. (eds.) Advances in Biofeedstocks and Biofuels. Wiley-Scrivener, pp. 33-53. ISBN 9781119117254

2015

Khan, Z., Turner, E., Sharp, J. and Watson, I. (2015) Real Time Control of Gasification Processes to Increase Tolerance to Biomass Variety and Reduce Emissions. In: SUPERGEN Bioenergy Annual Assembly, Harpenden, UK, 19-20 Nov 2015,

Turner, E., Watson, I. and Sharp, J. (2015) Instrumentation and Control Techniques for Small Gasifiers. In: SUPERGEN Bioenergy SHARE Event, Bath, UK, 20 May 2015,

2012

Krishnan, A., Watson, I., Parton, R. and Sharp, J. (2012) Comparison and validation of visual assessment and image processing algorithms to quantify morphology dynamics of Euglena gracilis. Microscopy and Microanalysis, 18(4), pp. 798-807. (doi:10.1017/S1431927612000414)

Sharp, J.H., Shi, P.C.W. and Watson, I.A. (2012) Concentration dependence of upconversion emission from Er:YAG fibers. Optics Letters, 37(22), pp. 4597-4599. (doi:10.1364/OL.37.004597)

2011

Shi, P.C.W., Watson, I.A. and Sharp, J.H. (2011) High-concentration Er:YAG single-crystal fibers grown by laser-heated pedestal growth technique. Optics Letters, 36(12), pp. 2182-2184. (doi:10.1364/OL.36.002182)

2010

Sharp, J., Shi, C.W.P., Watson, I. and Seat, H.C. (2010) Temperature and strain dependence of flourescence in ruby fibres. Asian Journal of Physics, 19(1),

Watson, I., Ng, E. and Sharp, J. (2010) Monitoring CO2 laser weld quality with white light sources. Asian Journal of Physics, 19(1),

2006

Sharp, J.H., Shi, C.W.P., Watson, I.A. and Seat, H.C. (2006) Production and applications of single crystal optical fibres. Asian Journal of Physics, 15(3), pp. 233-242.

2004

Seat, H. and Sharp, J. (2004) Dedicated temperature sensing with C-axis oriented single crystal ruby (Cr3+ Al2O3) fibers: Temperature and strain dependences of R-line fluorescence. IEEE Transactions on Instrumentation and Measurement, 53, pp. 140-154. (doi:10.1109/TIM.2003.822010)

2003

Seat, H.C. and Sharp, J.H. (2003) Er3+ + Yb3+-codoped Al2O3 crystal fibres for high-temperature sensing. Measurement Science and Technology, 14(3), pp. 279-285. (doi:10.1088/0957-0233/14/3/305)

Seat, H. and Sharp, J. (2003) Er3++Yb3+-codoped Al2O3 crystal fibres for high-temperature sensing. Measurement Science and Technology, 14, pp. 279-285.

2002

Seat, H.C., Sharp, J.H., Zhang, Z.Y. and Grattan, K.T.V. (2002) Single-crystal ruby fiber temperature sensor. Sensors and Actuators A: Physical, 101(1-2), pp. 24-29. (doi:10.1016/S0924-4247(02)00190-5)

2001

Sharp, J.H., Shi, C.W.P. and Seat, H.C. (2001) Er-doped sapphire fibre temperature sensors using upconversion emission. Measurement and Control, 34(6), pp. 170-171.

1999

Sharp, J. H. et al. (1999) Experimental systems implementation of a hybrid optical–digital correlator. Applied Optics, 38(29), p. 6116. (doi:10.1364/AO.38.006116)

1996

Watson, I. A., Ward, G. D., Wang, R. K., Sharp, J. H., Budgett, D. M., Stewart-Tull, D. E., Wardlaw, A. and Chatwin, C. R. (1996) Comparative bactericidal activities of lasers operating at seven different wavelengths. Journal of Biomedical Optics, 1(4), pp. 466-472. (doi:10.1117/12.250684)

This list was generated on Thu Jun 22 12:52:04 2017 BST.
Number of items: 16.

Articles

Krishnan, A., Watson, I., Parton, R. and Sharp, J. (2012) Comparison and validation of visual assessment and image processing algorithms to quantify morphology dynamics of Euglena gracilis. Microscopy and Microanalysis, 18(4), pp. 798-807. (doi:10.1017/S1431927612000414)

Sharp, J.H., Shi, P.C.W. and Watson, I.A. (2012) Concentration dependence of upconversion emission from Er:YAG fibers. Optics Letters, 37(22), pp. 4597-4599. (doi:10.1364/OL.37.004597)

Shi, P.C.W., Watson, I.A. and Sharp, J.H. (2011) High-concentration Er:YAG single-crystal fibers grown by laser-heated pedestal growth technique. Optics Letters, 36(12), pp. 2182-2184. (doi:10.1364/OL.36.002182)

Sharp, J., Shi, C.W.P., Watson, I. and Seat, H.C. (2010) Temperature and strain dependence of flourescence in ruby fibres. Asian Journal of Physics, 19(1),

Watson, I., Ng, E. and Sharp, J. (2010) Monitoring CO2 laser weld quality with white light sources. Asian Journal of Physics, 19(1),

Sharp, J.H., Shi, C.W.P., Watson, I.A. and Seat, H.C. (2006) Production and applications of single crystal optical fibres. Asian Journal of Physics, 15(3), pp. 233-242.

Seat, H. and Sharp, J. (2004) Dedicated temperature sensing with C-axis oriented single crystal ruby (Cr3+ Al2O3) fibers: Temperature and strain dependences of R-line fluorescence. IEEE Transactions on Instrumentation and Measurement, 53, pp. 140-154. (doi:10.1109/TIM.2003.822010)

Seat, H.C. and Sharp, J.H. (2003) Er3+ + Yb3+-codoped Al2O3 crystal fibres for high-temperature sensing. Measurement Science and Technology, 14(3), pp. 279-285. (doi:10.1088/0957-0233/14/3/305)

Seat, H. and Sharp, J. (2003) Er3++Yb3+-codoped Al2O3 crystal fibres for high-temperature sensing. Measurement Science and Technology, 14, pp. 279-285.

Seat, H.C., Sharp, J.H., Zhang, Z.Y. and Grattan, K.T.V. (2002) Single-crystal ruby fiber temperature sensor. Sensors and Actuators A: Physical, 101(1-2), pp. 24-29. (doi:10.1016/S0924-4247(02)00190-5)

Sharp, J.H., Shi, C.W.P. and Seat, H.C. (2001) Er-doped sapphire fibre temperature sensors using upconversion emission. Measurement and Control, 34(6), pp. 170-171.

Sharp, J. H. et al. (1999) Experimental systems implementation of a hybrid optical–digital correlator. Applied Optics, 38(29), p. 6116. (doi:10.1364/AO.38.006116)

Watson, I. A., Ward, G. D., Wang, R. K., Sharp, J. H., Budgett, D. M., Stewart-Tull, D. E., Wardlaw, A. and Chatwin, C. R. (1996) Comparative bactericidal activities of lasers operating at seven different wavelengths. Journal of Biomedical Optics, 1(4), pp. 466-472. (doi:10.1117/12.250684)

Book Sections

Corton, J. et al. (2017) The impact of biomass feedstock composition and pre-treatments on tar formation during biomass gasification. In: Singh, L. K. and Chaudhary, G. (eds.) Advances in Biofeedstocks and Biofuels. Wiley-Scrivener, pp. 33-53. ISBN 9781119117254

Conference Proceedings

Khan, Z., Turner, E., Sharp, J. and Watson, I. (2015) Real Time Control of Gasification Processes to Increase Tolerance to Biomass Variety and Reduce Emissions. In: SUPERGEN Bioenergy Annual Assembly, Harpenden, UK, 19-20 Nov 2015,

Turner, E., Watson, I. and Sharp, J. (2015) Instrumentation and Control Techniques for Small Gasifiers. In: SUPERGEN Bioenergy SHARE Event, Bath, UK, 20 May 2015,

This list was generated on Thu Jun 22 12:52:04 2017 BST.