Projects per year
Personal profile
Biography
I received an MPhys degree (1997) and a DPhil (2001) from Oxford University, UK. Following two years as a Research Assistant in the Clarendon Laboratory at Oxford, I moved to Macquarie University in 2004, where I completed an ARC Research fellowship (APDF). I now hold a professorship in the MQ Photonics research centre. My research has covered a wide range of laser and nonlinear optics. Experimental highlights include: working with national-scale PW laser to make XUV lasers; building 25 fs Raman lasers in the IR and the first ultrafast cerium lasers in the UV; building 22 ps Q-switched microchip lasers; and CW single longitudinal mode lasers using Raman-, polariton-, and Brillouin-scattering. My publications are characterized by a strong link between experiments and supporting theory, using both numerical and analytic modelling, with theory highlights including an invited review of Raman theory, and an analytic theory to model polariton THz lasers. Successful industry translations include a commercialised product with Optos for retinal surgery, and current IP licenses with Jenoptik GmbH and M Squared Lasers Ltd.
I have supervised 6 completed PhD students and has one current student. Two graduated students are now in high-tech industry (Renishaw, PLC, UK, and Coherent Scotland, UK), one is in a science funding consultancy (forderbar GmbH), one is a postdoc at Capital Normal University, Beijing, and one is at CERN (after a postdoc at MIT and a position of beam scientist at SLAC).
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Collaborations and top research areas from the last five years
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Directed energy concept based on fibre laser pumped diamond
Mildren, R. (Primary Chief Investigator), Williams, R. (Associate Investigator) & Spence, D. (Associate Investigator)
13/04/17 → …
Project: Research
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Precision frequency spectrum diagnostic for pulsed lasers
Mildren, R. (Primary Chief Investigator), Pask, H. (Chief Investigator), Spence, D. (Chief Investigator), Lee, A. (Chief Investigator), Jackson, S. (Chief Investigator), Williams, R. (Chief Investigator), Fuerbach, A. (Chief Investigator), Kitzler, O. (Chief Investigator) & Piracha, A. (Chief Investigator)
1/01/17 → …
Project: Research
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The Ultimate Multimode Photonics Characterisation Tool
Gross, S. (Primary Chief Investigator), Steel, M. (Chief Investigator), Ams, M. (Chief Investigator), Spence, D. (Chief Investigator), Hudson, D. (Chief Investigator), Arriola, A. (Chief Investigator), Collins, M. (Chief Investigator), Douglass, G. (Student) & Gretzinger, T. (Student)
1/01/17 → …
Project: Research
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Diamond lasers for precision applications
Spence, D. (Primary Chief Investigator), Mildren, R. (Chief Investigator) & Malcolm, G. (Partner Investigator)
17/08/16 → …
Project: Research
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MQ Photonics Research Centre
Coutts, D. W. (Primary Chief Investigator), Withford, M. (Chief Investigator), Orr, B. (Chief Investigator), Carman, R. (Chief Investigator - University), Connally, R. (Chief Investigator - University), Dawes, J. (Chief Investigator - University), Browne, P. (Chief Investigator - University), Downes, J. (Chief Investigator - University), Fuerbach, A. (Chief Investigator - University), Goldys, E. (Chief Investigator - University), Dekker, P. (Chief Investigator - University), He, Y. (Chief Investigator - University), Jin, D. (Chief Investigator - University), Kane, D. (Chief Investigator - University), Marshall, G. (Chief Investigator - University), Mildren, R. (Chief Investigator - University), Pask, H. (Chief Investigator - University), Piper, J. (Chief Investigator - University), Rabeau, J. (Chief Investigator - University), Spence, D. (Chief Investigator - University), Drozdowicz-Tomsia, K. (Chief Investigator - University), Town, G. (Chief Investigator - University), Zvyagin, A. (Chief Investigator - University) & Steel, M. (Chief Investigator)
1/07/07 → …
Project: Research
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An Oceanographic LiDAR system
Downes, J. (Inventor), Kitzler, O. (Inventor), Pask, H. M. (Inventor) & Spence, D. J. (Inventor), 5 Feb 2026, (Submitted) IPC No. G01N 33/18 2006.1, G01N 21/84 2006.1, G01S 15/00 2020.1, G01J 7/00 2006.1, G01S 7/481 2006.1, G01S 17/10 2020.1, Patent No. WO2026025160, 31 Jul 2025, Priority date 9 Dec 2024, Priority No. AU20240904069Research output: Patent
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GdVO4 Raman laser of Lorentzian linewidth less than 3 Hz
Mildren, R. P., Benkler, E., Sterr, U., Sharp, A., Spence, D. J. & Terra, O., 15 Apr 2026, In: Optics Letters. 51, 8, p. 2116-2119 4 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
L-shape diamond Raman laser with 35 W at 589 nm and Hz-scale intrinsic linewidth
Terra, O., Sharp, A., Connaughton, A., Ferrier, M., Lin, J., Ortega, T. A., Spence, D. J. & Mildren, R. P., 19 Aug 2026, In: ACS Photonics. 13, 16, p. 4617-4625 9 p.Research output: Contribution to journal › Article › peer-review
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Range-resolved water temperature measurement using Raman LiDAR with multiplexed excitation
Kitzler, O., Taylor, C. J., Li, Z., Dawes, J. M., Downes, J. E., Spence, D. J. & Pask, H. M., 29 Jun 2026, In: Optics Express. 34, 13, p. 24910-24923 14 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Tunable structured laser over full spatial spectrum
Sheng, Q., Geng, J.-N., Jiang, J.-Q., Liu, T.-C., Spence, D. J., Pask, H. M., Rao, A. S., Omatsu, T., Fu, S.-J., Bai, Z.-X., Lv, Z.-W., Shi, W., Yao, J.-Q., Rosales-Guzmán, C. & Zhu, Z.-H., Dec 2026, In: Light: Science and Applications. 15, 1, 10 p., 169.Research output: Contribution to journal › Article › peer-review
Open AccessFile11 Link opens in a new tab Citations (Scopus)11 Downloads (Pure)
Prizes
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Inter-Departmental Collaboration - [EX]plore Conference Organising Committee
Spence, D. (Recipient), De Marco, O. (Recipient), Jiang, I. (Recipient), Lin, H. (Recipient), Smith, C. (Recipient), Jaschke, P. (Recipient), Hurst, S. (Recipient), Fernandes Erickson, M. (Recipient), Rhee, K. (Recipient), Sharpless, K. (Recipient), Aboud, J. (Recipient), Er, J. (Recipient) & Pallesen, M. (Recipient), 8 Dec 2022
Prize: Other distinction