Physics » Ultrafast & Terahertz Photonics: Publications (tag [review])

A Tutorial on THz Pulse Analysis: Accurate Retrieval of Pulse Arrival Times, Spectral Energy Density and Absolute Spectral Phase

Fri, 16 May 2025 16:31:00 GMT

J. Lloyd-Hughes, N. Chopra, J. Deveikis, R. Pandya and J. Woolley
J. Infrared mm THz 46 34 (May 2025)

The 2023 terahertz science and technology roadmap

Tue, 06 Jun 2023 21:11:00 GMT

A. Leitenstorfer, ..., E. Pickwell-MacPherson, ... and J. Cunningham
J. Phys. D: Appl. Phys. 56, 223001 (April 2023)

Terahertz (THz) radiation encompasses a wide spectral range within the electromagnetic spectrum that extends from microwaves to the far infrared (100 GHz–∼30 THz). Within its frequency boundaries exist a broad variety of scientific disciplines that have presented, and continue to present, technical challenges to researchers. During the past 50 years, for instance, the demands of the scientific community have substantially evolved and with a need for advanced instrumentation to support radio astronomy, Earth observation, weather forecasting, security imaging, telecommunications, non-destructive device testing and much more. Furthermore, applications have required an emergence of technology from the laboratory environment to production-scale supply and in-the-field deployments ranging from harsh ground-based locations to deep space. In addressing these requirements, the research and development community has advanced related technology and bridged the transition between electronics and photonics that high frequency operation demands. The multidisciplinary nature of THz work was our stimulus for creating the 2017 THz Science and Technology Roadmap (Dhillon et al 2017 J. Phys. D: Appl. Phys. 50 043001). As one might envisage, though, there remains much to explore both scientifically and technically and the field has continued to develop and expand rapidly. It is timely, therefore, to revise our previous roadmap and in this 2023 version we both provide an update on key developments in established technical areas that have important scientific and public benefit, and highlight new and emerging areas that show particular promise. The developments that we describe thus span from fundamental scientific research, such as THz astronomy and the emergent area of THz quantum optics, to highly applied and commercially and societally impactful subjects that include 6G THz communications, medical imaging, and climate monitoring and prediction. Our Roadmap vision draws upon the expertise and perspective of multiple international specialists that together provide an overview of past developments and the likely challenges facing the field of THz science and technology in future decades. The document is written in a form that is accessible to policy makers who wish to gain an overview of the current state of the THz art, and for the non-specialist and curious who wish to understand available technology and challenges. A such, our experts deliver a 'snapshot' introduction to the current status of the field and provide suggestions for exciting future technical development directions. Ultimately, we intend the Roadmap to portray the advantages and benefits of the THz domain and to stimulate further exploration of the field in support of scientific research and commercial realisation.

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

Wed, 01 Jun 2022 08:45:00 GMT

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)

A Review of the Terahertz Conductivity and Photoconductivity of Carbon Nanotubes and Heteronanotubes

Thu, 30 Sep 2021 21:28:00 GMT

M.G. Burdanova, A.P. Tsapenko, M.V. Kharlamova, E.I. Kauppinen, B.P. Gorshunov, J. Kono and J. Lloyd-Hughes
Advanced Optical Materials 2101042 (Sept 2021)

The 2021 ultrafast spectroscopic probes of condensed matter roadmap

Mon, 05 Jul 2021 12:02:00 GMT

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)

Real time THz imaging—opportunities and challenges for skin cancer detection

Thu, 10 Jun 2021 11:30:00 GMT

H. Lindley-Hatcher, R. I. Stantchev, X. Chen, A. I. Hernandez-Serrano, J. Hardwicke and E. Pickwell-MacPherson
Appl. Phys. Lett. 118, 230501 (June 2021)

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

Wed, 09 Jun 2021 09:14:00 GMT

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

Nanotechnology for catalysis and solar energy conversion

Mon, 09 Nov 2020 17:46:00 GMT

U. Banin, N. Waiskopf, L. Hammarström, G. Boschloo, M. Freitag, E.M.J. Johansson, J. Sá, H. Tian, M.B. Johnston, L.M. Herz, R.L. Milot, M.G. Kanatzidis, W. Ke, I. Spanopoulos, K.L. Kohlstedt, G.C. Schatz, N. Lewis, T. Meyer, A.J. Nozik, M.C. Beard, F. Armstrong, C. F. Megarity, C.A. Schmuttenmaer, V. S. Batista, and G.W. Brudvig

Nanotechnology 32 042003 (Nov 2020) [pdf] [ref]

This roadmap on Nanotechnology for Catalysis and Solar Energy Conversion focuses on the application of nanotechnology in addressing the current challenges of energy conversion: 'high efficiency, stability, safety, and the potential for low-cost/scalable manufacturing' to quote from the contributed article by Nathan Lewis. This roadmap focuses on solar-to-fuel conversion, solar water splitting, solar photovoltaics and bio-catalysis. It includes dye-sensitized solar cells (DSSCs), perovskite solar cells, and organic photovoltaics. Smart engineering of colloidal quantum materials and nanostructured electrodes will improve solar-to-fuel conversion efficiency, as described in the articles by Waiskopf and Banin and Meyer. Semiconductor nanoparticles will also improve solar energy conversion efficiency, as discussed by Boschloo et al in their article on DSSCs. Perovskite solar cells have advanced rapidly in recent years, including new ideas on 2D and 3D hybrid halide perovskites, as described by Spanopoulos et al 'Next generation' solar cells using multiple exciton generation (MEG) from hot carriers, described in the article by Nozik and Beard, could lead to remarkable improvement in photovoltaic efficiency by using quantization effects in semiconductor nanostructures (quantum dots, wires or wells). These challenges will not be met without simultaneous improvement in nanoscale characterization methods. Terahertz spectroscopy, discussed in the article by Milot et al is one example of a method that is overcoming the difficulties associated with nanoscale materials characterization by avoiding electrical contacts to nanoparticles, allowing characterization during device operation, and enabling characterization of a single nanoparticle. Besides experimental advances, computational science is also meeting the challenges of nanomaterials synthesis. The article by Kohlstedt and Schatz discusses the computational frameworks being used to predict structure–property relationships in materials and devices, including machine learning methods, with an emphasis on organic photovoltaics. The contribution by Megarity and Armstrong presents the 'electrochemical leaf' for improvements in electrochemistry and beyond. In addition, biohybrid approaches can take advantage of efficient and specific enzyme catalysts. These articles present the nanoscience and technology at the forefront of renewable energy development that will have significant benefits to society.