Tom Brown

C Tom A Brown

Postal address:
School of Physics & Astronomy
Physical Science Building
North Haugh
St Andrews
United Kingdom

E-mail: ctab@st-andrews.ac.uk

Direct phone: +44 (0)1334 463129

Research overview

My research concerns the development of laser systems based on solid state gain media focussing particularly on novel ultrafast systems.  I also carry out some research in biophotonics, applying lasers to address current problems in Biology and Medicine.

Recent Publications

Exogenous mineralization of hard tissues using photo-absorptive minerals and femto-second lasers: the case of dental enamel
Anastasiou, A. D., Strafford, S., Thomson, C. L., Gardy, J., Edwards, T. J., Malinowski, M., Hussain, S. A., Metzger, N. K., Hassanpour, A., Brown, C. T. A., Brown, A. P., Duggal, M. S. & Jha, A. 15 Apr 2018 In : Acta Biomaterialia. 71, p. 86-95 10 p.
Research output: Research - peer-reviewArticle

Quantifying direct DNA damage in the basal layer of skin exposed to UV radiation from sunbeds
Barnard, I. R. M., Tierney, P., Campbell, C. L., McMillan, L., Moseley, H., Eadie, E., Brown, C. T. A. & Wood, K. 12 Apr 2018 (Accepted/In press) In : Photochemistry and Photobiology. In press
Research output: Research - peer-reviewArticle

Diode-pumped femtosecond Tm3+-doped LuScO3 laser near 2.1 μm
Stevenson, N. K., Brown, C. T. A., Hopkins, J. -M., Dawson, M. D., Kraenkel, C. & Lagatsky, A. A. 15 Mar 2018 In : Optics Letters. 43, 6, p. 1287-1290 4 p.
Research output: Research - peer-reviewArticle

Waveguide Tm:Lu2O3 ceramic laser fabricated by ultrafast laser inscription
Stevenson, N. K., Morris, J., Bookey, H., Kar, A. K., Brown, C. T. A., Hopkins, J-M., Dawson, M. D. & Lagatsky, A. A. 30 Oct 2017 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 1 p. 8086975
Research output: ResearchConference contribution

1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramic
Morris, J., Stevenson, N. K., Bookey, H. T., Kar, A. K., Brown, C. T. A., Hopkins, J. -M., Dawson, M. D. & Lagatsky, A. A. 26 Jun 2017 In : Optics Express. 25, 13, p. 14910-14917 8 p.
Research output: Research - peer-reviewArticle

β-pyrophosphate: a potential biomaterial for dental applications
Anastasiou, A. D., Strafford, S., Posada-Estefan, O., Thomson, C. L., Hussaein, S. A., Edwards, T. J., Malinowski, M., Hondow, N., Metzger, N. K., Brown, C. T. A., Routledge, M. N., Brown, A. P., Duggal, M. S. & Jha, A. 1 Jun 2017 In : Materials Science and Engineering: B. 75, p. 885-894 10 p.
Research output: Research - peer-reviewArticle

A quantitative study of in vivo protoporphyrin IX fluorescence build up during occlusive treatment phases
Campbell, C. L., Brown, C. T. A., Wood, K., Salvio, A. G., Inada, N. M., Bagnato, V. S. & Moseley, H. Jun 2017 In : Photodiagnosis and Photodynamic Therapy. 18, p. 204-207
Research output: Research - peer-reviewArticle

Frequency comb-based time transfer over a 159 km long installed fiber network
Lessing, M., Margolis, H., Brown, C. T. A. & Marra, G. 30 May 2017 In : Applied Physics Letters. 110, 22, 5 p., 221101
Research output: Research - peer-reviewArticle

Modelling topical photodynamic therapy treatment including the continuous production of Protoporphyrin IX
Campbell, C. L., Brown, C. T. A., Wood, K. & Moseley, H. 7 Nov 2016 In : Physics in Medicine and Biology. 61, 21, p. 7507-7521
Research output: Research - peer-reviewArticle

Monte Carlo modelling of photodynamic therapy treatments comparing clustered three dimensional tumour structures with homogeneous tissue structures
Campbell, C. L., Wood, K., Brown, C. T. A. & Moseley, H. 7 Jul 2016 In : Physics in Medicine and Biology. 61, 13, p. 4840-4854 15 p.
Research output: Research - peer-reviewArticle

Sintering of calcium phosphates with a femtosecond pulsed laser for hard tissue engineering
Anastasiou, A. D., Thomson, C. L., Hussain, S. A., Edwards, T. J., Strafford, S., Malinowski, M., Mathieson, R., Brown, C. T. A., Brown, A. P., Duggal, M. S. & Jha, A. 5 Jul 2016 In : Materials & Design. 101, p. 346-354
Research output: Research - peer-reviewArticle

Ultrafast high-repetition-rate waveguide lasers
Shepherd, D., Choudhary, A., Lagatsky, A. A., Kannan, P., Beecher, S., Eason, R., Mackenzie, J., Feng, X., Sibbett, W. & Brown, C. T. A. Mar 2016 In : IEEE Journal of Selected Topics in Quantum Electronics. 22, 2
Research output: Research - peer-reviewArticle

New insights into photodynamic therapy treatment through the use of 3D Monte Carlo radiation transfer modelling
Campbell, C. L., Wood, K., Brown, C. T. A. & Moseley, H. 29 Feb 2016 Photonic Therapeutics and Diagnostics XII. Choi, B., Kollias, N., Zeng, H., Wook Kang, H., Wong, B. J. F., Ilgner, J. F., Tearney, G. J., Gregory, K. W., Marcu, L., Skala, M. C., Campagnola, P. J., Mandelis, A. & Morris, M. D. (eds.). SPIE, 96890Q. (Proceedings of SPIE; vol. 9689)
Research output: ResearchConference contribution

3D Monte Carlo radiation transfer modelling of photodynamic therapy
Campbell, C. L., Christison, C., Brown, C. T. A., Wood, K., Valentine, R. M. & Moseley, H. Jun 2015 Biophotonics South America. Kurachi, C., Svanberg, K., Tromberg, B. J. & Bagnato, V. S. (eds.). SPIE, (Proceedings of SPIE; vol. 9531)
Research output: ResearchConference contribution

Dispersion studies on multimode polymer spiral waveguides for board-level optical interconnects
Chen, J., Bamiedakis, N., Edwards, T., Brown, C. T. A., Penty, R. V. & White, I. H. 29 May 2015 2015 IEEE Optical Interconnects Conference, OI 2015. IEEE, p. 26-27 2 p.
Research output: ResearchConference contribution

Monte Carlo modelling of daylight activated photodynamic therapy
Campbell, C. L., Wood, K., Valentine, R. M., Brown, C. T. A. & Moseley, H. 21 May 2015 In : Physics in Medicine and Biology. 60, 10
Research output: Research - peer-reviewArticle

Algorithm based comparison between the integral method and harmonic analysis of the timing jitter of diode-based and solid-state pulsed laser sources
Metzger, N. K., Su, C-R., Edwards, T. J. & Brown, C. T. A. 15 Apr 2015 In : Optics Communications. 341, p. 7-14 8 p.
Research output: Research - peer-reviewArticle

High-bandwidth and large coupling tolerance graded-index multimode polymer waveguides for on-board high-speed optical interconnects
Chen, J., Bamiedakis, N., Vasil'ev, P. P., Edwards, T., Brown, C. T. A., Penty, R. & White, I. 2015 In : IEEE Journal of Lightwave Technology. In press
Research output: Research - peer-reviewArticle

Internal physiology of live krill revealed using new aquaria techniques and mixed optical microscopy and optical coherence tomography (OCT) imaging techniques
Cox, M., Kawaguchu, S., King, R., Dholakia, K. & Brown, C. T. A. 2015 In : Marine and Freshwater Behaviour and Physiology. In press
Research output: Research - peer-reviewArticle

Towards an all-integrated MOPA configuration using Ybdoped ion-exchanged waveguides
Choudhary, A., Lagatsky, A. A., Kannan, P., Brown, C. T. A. & Shepherd, D. P. 19 Dec 2014 International Conference on Fibre Optics and Photonics 2014. Optical Society of American (OSA)
Research output: ResearchConference contribution

The application of optical coherence tomography to image subsurface tissue structure of antarctic krill Euphausia Superba
Bellini, N., Cox, M. J., Harper, D. J., Stott, S. R., Ashok, P. C., Dholakia, K., Kawaguchi, S., King, R., Horton, T. & Brown, C. T. A. 13 Oct 2014 In : PLoS One. 9, 10, 7 p., e110367
Research output: Research - peer-reviewArticle

Suppression of amplitude-to-phase noise conversion in balanced optical-microwave phase detectors
Lessing, M., Margolis, H. S., Brown, C. T. A., Gill, P. & Marra, G. 4 Nov 2013 In : Optics Express. 21, 22, p. 27057-27062 6 p.
Research output: Research - peer-reviewArticle

A diode-pumped 1.5 mu m waveguide laser mode-locked at 6.8 GHz by a quantum dot SESAM
Choudhary, A., Lagatsky, A. A., Zhang, Z. Y., Zhou, K. J., Wang, Q., Hogg, R. A., Pradeesh, K., Rafailov, E. U., Sibbett, W., Brown, C. T. A. & Shepherd, D. P. Oct 2013 In : Laser Physics Letters. 10, 10, 4 p., 105803
Research output: Research - peer-reviewArticle

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz
Lagatsky, A. A., Choudhary, A., Kannan, P., Shepherd, D. P., Sibbett, W. & Brown, C. T. A. 26 Aug 2013 In : Optics Express. 21, 17, p. 19608-19614 7 p.
Research output: Research - peer-reviewArticle

2 μm solid-state laser mode-locked by single-layer graphene
Lagatsky, A. A., Sun, Z., Kulmala, T. S., Sundaram, R. S., Milana, S., Torrisi, F., Antipov, O. L., Lee, Y., Ahn, J. H., Brown, C. T. A., Sibbett, W. & Ferrari, A. C. 7 Jan 2013 In : Applied Physics Letters. 102, 1, 4 p., 013113
Research output: Research - peer-reviewArticle

Diode-pumped femtosecond solid-state waveguide laser with a 4.9 GHz pulse repetition rate
Choudhary, A., Lagatsky, A. A., Kannan, P., Sibbett, W., Brown, C. T. A. & Shepherd, D. P. 1 Nov 2012 In : Optics Letters. 37, 21, p. 4416-4418 3 p.
Research output: Research - peer-reviewArticle

Monte Carlo simulations for optimal light delivery in photodynamic therapy of non-melanoma skin cancer
Valentine, R. M., Wood, K., Brown, C. T. A., Ibbotson, S. H. & Moseley, H. 21 Oct 2012 In : Physics in Medicine and Biology. 57, 20, p. 6327-6345 19 p.
Research output: Research - peer-reviewArticle

Electrically-controlled rapid femtosecond pulse duration switching and continuous picosecond pulse duration tuning in an ultrafast Cr4+:forsterite laser
Crombie, C., Walsh, D. A., Lu, W., Zhang, S., Zhang, Z., Kennedy, K., Calvez, S., Sibbett, W. & Brown, C. T. A. 30 Jul 2012 In : Optics Express. 20, 16, p. 18138-18144 7 p.
Research output: Research - peer-reviewArticle

Problem-based labs and group projects in an introductory university physics course
Kohnle, A., Brown, C. T. A., Rae, C. F. & Sinclair, B. D. Jul 2012 In : Physics Education. 47, 4, p. 476-481
Research output: Research - peer-reviewArticle

Tissue surface as the reference arm in Fourier domain optical coherence tomography
Krstajic, N., Brown, C. T. A., Dholakia, K. & Giardini, M. E. Jul 2012 In : Journal of Biomedical Optics. 17, 7, 6 p., 071305
Research output: Research - peer-reviewArticle

Optical trapping with "on-demand" two-photon luminescence using Cr:LiSAF laser with optically addressed saturable Bragg reflector
Savitski, V. G., Metzger, N. K., Calvez, S., Burns, D., Sibbett, W. & Brown, C. T. A. 26 Mar 2012 In : Optics Express. 20, 7, p. 7066-7070 5 p.
Research output: Research - peer-reviewArticle

Algorithm-based continuous pulse duration tuning and performance control of a mode-locked laser diode
Metzger, N. K., Olle, V. F., Wonfor, A., Penty, R. V., White, I. H., Mazilu, M., Brown, C. T. A. & Sibbett, W. 26 Mar 2012 In : Optics Express. 20, 7, p. 7022-7034 13 p.
Research output: Research - peer-reviewArticle

The development and application of femtosecond laser systems
Sibbett, W., Lagatsky, A. A. & Brown, C. T. A. 26 Mar 2012 In : Optics Express. 20, 7, p. 6989-7001 13 p.
Research output: Research - peer-reviewArticle

Passively mode locked femtosecond Tm:Sc2O3 laser at 2.1 mu m
Lagatsky, A. A., Koopmann, P., Fuhrberg, P., Huber, G., Brown, C. T. A. & Sibbett, W. 1 Feb 2012 In : Optics Letters. 37, 3, p. 437-439 3 p.
Research output: Research - peer-reviewArticle

Tissue Surface as the Reference Arm in Fourier Domain Optical Coherence Tomography
Krstajic, N., Ashok, P. C., Sibbett, W., Brown, C. T. A., Dholakia, K. & Giardini, M. E. 2012 p. BTu3A.80 3 p.
Research output: Research - peer-reviewPaper