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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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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

Terahertz (THz) biophotonics technology: Instrumentation, techniques, and biomedical applications

Diagram

X. Chen, H. Lindley-Hatcher, R. I. Stantchev, J. Wang, K. Li, A. I. Hernandez-Serrano, Z. D. Taylor, E. Castro-Camus and E. Pickwell-MacPherson
Chem. Phys. Rev. 3, 011311 (June 2022)

Wed 01 Jun 2022, 09:45 | Tags: THz spectroscopy, MacPherson, 2022, biomedical, review

Optimized multilayer structure for sensitive THz characterization of thin-film glucose solutions

Diagram

X. Ding, A. I. Hernandez-Serrano, H. Lindley-Hatcher, R. I. Stantchev, J. Zhou and E. Pickwell-MacPherson
Optics Express 30, 18079 (May 2022)

Sun 01 May 2022, 20:55 | Tags: THz spectroscopy, MacPherson, 2022

Simulated and Experimental Verification for a Terahertz Specific Finite Rate of Innovation Signal Processing Method

Diagram

X. E. Ramirez Barker, R. I. Stantchev, A. I. Hernandez-Serrano and E. Pickwell-MacPherson
Sensors 22, 3387 (April 2022)

Thu 21 Apr 2022, 12:00 | Tags: THz spectroscopy, MacPherson

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