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

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 Sep 2017 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 1 p. 8086975
Research output: Chapter in Book/Report/Conference proceedingConference 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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Chapter in Book/Report/Conference proceedingConference 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: Chapter in Book/Report/Conference proceedingConference 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: Chapter in Book/Report/Conference proceedingConference 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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Chapter in Book/Report/Conference proceedingConference 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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to journalArticle

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: Contribution to conferencePaper

Optically-induced switching between mode-locked and unmode-locked continuous wave regimes of a femtosecond Cr4+:forsterite laser
Walsh, D. A., Crombie, C. E., Sibbett, W., Brown, C. T. A., Savitski, V. G., Burns, D. & Calvez, S. 2012 LASER SOURCES AND APPLICATIONS. Graf, T., Mackenzie, J. I., Jelinkova, H. & Powell, J. (eds.). BELLINGHAM: SPIE, p. - 10 p.
Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wavelength-orthogonal photolysis of neurotransmitters in vitro
Stanton-Humphreys, M. N., Taylor, R. D. T., McDougall, C., Hart, M. L., Brown, C. T. A., Emptage, N. J. & Conway, S. J. 2012 In : Chemical Communications. 48, 5, p. 657-659 3 p.
Research output: Contribution to journalArticle

Magnetic fields and differential rotation on the pre-main sequence - II. The early-G star HD 141943-coronal magnetic field, H alpha emission and differential rotation
Marsden, S. C., Jardine, M. M., Ramirez Velez, J. C., Alecian, E., Brown, C. J., Carter, B. D., Donati, J. -F., Dunstone, N., Hart, R., Semel, M. & Waite, I. A. 21 May 2011 In : Monthly Notices of the Royal Astronomical Society. 413, 3, p. 1939-1948 10 p.
Research output: Contribution to journalArticle