Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Ultrafast Physics and Technology



+44 (0)20 7594 7786jr.taylor Website CV




636ABlackett LaboratorySouth Kensington Campus





Roy graduated from the Queen’s University of Belfast with a 1st class honours in physics in 1971 and commenced a PhD under the supervision of Professor Dan Bradley. In 1973 he transferred to Imperial College and submitted his PhD thesis, “Studies of tunable picosecond laser pulses and nonlinear interactions” to the Queen’s University in 1974. From 1975 to 1976 he was a post-doctoral research assistant in the Institute of Physical Chemistry at the Technical University in Munich. He returned in 1977 to the Optics Section at Imperial and in 1986 he established the Femtosecond Optics Group, which he ran as a research assistant until 2002, when he appeared to be promoted to Professor of Ultrafast Physics and Technology, having by that stage solely supervised more than 35 successful PhD students. Roy’s interests are in the generation and application of ultrashort pulses to fundamental nonlinear processes, primarily optical fibre based currently, but with the objective of making temporally and spectrally versatile systems of commercial interest and diverse application. The group have an established reputation for extensive industrial interaction and Roy’s many contributions have been recognized by the Ernst Abbé Award of the Carl Zeiss Foundation, the Thomas Young Medal of the Institute of Physics and the Rumford Medal of the Royal Society. In 2017, Roy was elected to the Fellowship of the Royal Society. 



Chandran A, Battle RA, Murray RT, et al., 2021, Watt-level 743 nm source by second-harmonic generation of a cascaded phosphosilicate Raman fiber amplifier, Optics Express, Vol:29, ISSN:1094-4087, Pages:41467-41474

Fotiadi AA, Korobko DA, Zolotovskii IO, et al., 2021, Brillouin-like amplification in rare-earth-doped optical fibers, Optics Express, Vol:29, ISSN:1094-4087, Pages:40345-40359

Murray RT, Chandran AM, Battle RA, et al., 2021, Seeded optical parametric generation in CdSiP2 pumped by a Raman fiber amplifier at 124  µm, Optics Letters, Vol:46, ISSN:0146-9592, Pages:2039-2039


Murray RT, Chandran AM, Battle RA, et al., 2021, Seeded optical parametric generation in CdSiP2 pumped by a nanosecond pulsed, MHz repetition rate Raman fiber amplifier at 1.24 µm, Nonlinear Frequency Generation and Conversion: Materials and Devices XX, SPIE, Pages:1-10

Murray RT, Chandran AM, Battle RA, et al., 2021, CdSiP<inf>2</inf> based mid-infrared optical parametric sources pumped with Raman fiber amplifiers

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