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Ultrafast & Terahertz Photonics Group

Research areas

Nanomaterials

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.

CNT

Recent papers:

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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.

Medical

Recent papers:

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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:

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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).

Single-pixel

Recent papers:

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

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Optimum Optical Designs for Diffraction-Limited Terahertz Spectroscopy and Imaging Systems Using Off-Axis Parabolic Mirrors

Shaping

N. Chopra and J. Lloyd-Hughes
J Infrared Milli Terahz Waves 44, 981 (Nov 2023)


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

mDABCO

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

High-bandwidth perovskite photonic sources on silicon

LED

A. Ren, H. Wang, L. Dai, J. Xia, E. Butler-Caddle, J.A. Smith, ... S.A. Hindmarsh, A.M. Sanchez, J. Lloyd-Hughes, S. J Sweeney, ... and Wei Zhang
Nature Photonics 17, 798–805 (July 2023)


Quantitative evaluation of transdermal drug delivery patches on human skin with in vivo THz-TDS

Diagram

X. Ding, G. Costa, A. I. Hernandez-Serrano, R.I. Stantchev, G. Nurumbetov, D.M. Haddleton, and E. Pickwell-MacPherson
Bio. Opt. Express 14, 1146 (Feb 2023)

Tue 06 Jun 2023, 22:02 | Tags: THz spectroscopy, MacPherson, 2023, biomedical, highlight

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