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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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Tunable Photoluminescence from Monolayer Molybdenum Disulfide

Shaping

BFM Healy, SL Pain, J. Lloyd-Hughes, NE Grant and JD Murphy
Adv. Mater. Interfaces 11 2400305 (Jul 2024)

Wed 10 Jul 2024, 13:55 | Tags: 2024, Lloyd-Hughes, nanomaterials

Quantifying photoluminescence variability in monolayer molybdenum disulfide films grown by chemical vapour deposition

Shaping

BFM Healy, SL Pain, J. Lloyd-Hughes, NE Grant and JD Murphy
Materials Research Express 11 015002 (Jan 2024)

Tue 23 Jan 2024, 07:24 | Tags: 2024, Lloyd-Hughes, nanomaterials, photoluminescence

The 3237 cm−1 diamond defect: Ultrafast vibrational dynamics, concentration calibration, and relationship to the N3VH0 defect

3237

T.J. Keat, D. J. L. Coxon, R.J. Cruddace, V. G. Stavros, M. E. Newton, and J. Lloyd-Hughes
Diamond and Related Materials 141 110661 (Jan 2024)

Thu 07 Dec 2023, 12:17 | Tags: 2024, Lloyd-Hughes, nanomaterials, ultrafast

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)


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