Skip to main content Skip to navigation

Ultrafast & Terahertz Photonics Group

Research areas


We use pump/probe spectroscopy to study how light and matter interact on femtosecond to nanosecond timescales. Using visible probes we can track electronic processes, while infrared radiation lets us study vibrational states of molecules and atomic-scale defects in semiconductors.


Recent papers:

...more papers

Terahertz medical imaging

Performing in vivo studies of the THz properties of skin is a major initiative in the group, supported by the EPSRC Terabotics Programme GrantLink opens in a new window. We develop robust measurement protocols and test them on a statistically significant number of patients, cross-checking with other methods.


Recent papers:

...more papers

Semiconductors and Energy materials

A major strand of our research is to improve our knowledge of the fundamental science underpinning new semiconductor materials, such as metal-halide perovskites, which are often attractive for photovoltaic applications.

Electronically-delayed optical pump/THz probe spectroscopy on a variety of semiconductors

Recent papers:

...more papers

Terahertz components, methods and techniques

We develop new THz devices and integrate them into novel systems designs that can perform THz imaging and THz spectroscopy faster, and with increased capabilities (e.g. polarisation control; robot-controlled probes).


Recent papers:

...more papers

Recent publication highlights [filter by topic: view all | highlights | THz | perovskites | nano | biomedical]

Select tags to filter on

Terahertz Emission via Optical Rectification in a Metal-Free Perovskite Crystal


Nathaniel P. Gallop, Dumitru Sirbu, David Walker, James Lloyd-Hughes, Pablo Docampo and Rebecca L. Milot
ACS Photonics 10 4022, (October 2023)

Thu 02 Nov 2023, 07:36 | Tags: THz spectroscopy, Milot, perovskites, Lloyd-Hughes, 2023, ultrafast, highlight

Resolving the Ultrafast Charge Carrier Dynamics of 2D and 3D Domains within a Mixed 2D/3D Lead-Tin Perovskite


Jake D. Hutchinson, Edoardo Ruggeri, Jack M. Woolley, Géraud Delport, Samuel D. Stranks, Rebecca L. Milot
Advanced Functional Materials 2305736, (August 2023)

Mon 07 Aug 2023, 11:41 | Tags: THz spectroscopy, Milot, perovskites, 2023, ultrafast

The 2021 ultrafast spectroscopic probes of condensed matter roadmap


J. Lloyd-Hughes, P.M. Oppeneer, T. Pereira dos Santos, A. Schleife, S. Meng, M.A. Sentef, M. Ruggenthaler, A. Rubio, I. Radu, M. Murnane, X. Shi, H. Kapteyn, B. Stadtmüller, K.M. Dani, F.H. da Jornada, E. Prinz, M. Aeschlimann, R.L. Milot, M. Burdanova, J. Boland, T. Cocker and F. Hegmann
J. Phys.: Cond. Matt. 33 353001 (July 2021)

Layered Perovskites in Solar Cells: Structure, Optoelectronic Properties, and Device Design

Helen review

D. Sirbu, F. H. Balogun, R. L. Milot and P. Docampo
Advanced Energy Materials (May 2021)

Older news