Photo of Mr Charlie-Ray Mann

Mr Charlie-Ray Mann

Postgraduate Researcher (Metamaterials CDT 2015)

Email:

Telephone: 01392 725018

Extension: (Streatham) 5018

I am a theoretical physics PhD student in the EPSRC Centre for Doctoral Training in Metamaterials where I work with Dr. Eros Mariani & Prof. Bill Barnes.

Broadly speaking, I am interested in how we can translate condensed matter phenomena into the realm of polaritonics. Recently, there has been intense effort to emulate Dirac quasiparticles in photonics by mimicking the underlying honeycomb symmetry of graphene. However, since their existence is tied to the lattice structure, it is notoriously difficult to manipulate their properties, hindering their potential for practical implementation in novel photonic devices. 

In recent work published in Nature Communications, we showed that this drawback can be overcome in the realm of metamaterials. We predicted that elementary honeycomb metasurfaces could support both type-I and type-II massless Dirac polaritons. Crucially, due to the mixed light-matter character of the Dirac polaritons, one can manipulate the fundamental properties of the Dirac polaritons by simply modifying the surrounding photonic environment. 

In 2015, I graduated from the University of Exeter with a 1st class degree in Physics, during which I was awarded two scholarships for academic excellence and received the Bertie Black Prize for the most outstanding academic performance in the College of Engineering, Mathematics and Physical Sciences (CEMPS).

Having grown up in Cornwall, rugby became a huge passion of mine where I represented Cornwall and Devon counties at under 15s, 16s, and 18s age-group levels. Whilst always fascinated by science and mathematics my real passion for physics developed during my A-levels where I achieved four A*'s in physics, mathematics, further mathematics, and biology.

Education

  • 2010-2012 A levels (Physics A*, Maths A*, Further Maths A*, Biology A*).
  • 2012-2015 BSc (Hons) in Physics, 1st class, University of Exeter.
  • 2015-present PhD in Theoretical Physics, University of Exeter.

Awards

  • £1,000 Excellence at Exeter Scholarship (2012).
  • £1,000 Eliahou Dangoor Scholarship for academic excellence (2012).
  • Exeter Physics Award for best academic performance (2013).
  • Exeter University Dean's Commendation Award (2013)
  • Exeter Physics Award for best academic performance (2014).
  • Exeter University Dean's Commendation Award (2014)
  • Exeter Physics Award for best academic performance (2015).
  • Exeter University Dean's Commendation Award (2015)
  • £250 Bertie Black Prize for most outstanding academic performance in the College of Engineering, Mathematics and Physical Sciences (2015).
  • £500 Most outstanding contributed talk at Rank Prize Symposium on Electromagnetic Metasurfaces, Grasmere, UK (2017).
  • £1,000 Lab-visiting fund to FU Berlin (2018).
  • £3,000 research grant award for summer undergraduate project (2018).

Conference presentations

  • Dirac Plasmon Polaritons with Tunable Stopped Light and Chirality Inversion, MAST STC Defence Materials Forum, Exeter, UK, May 2016.
  • Dirac Plasmon Polaritons with Tunable Stopped Light and Chirality Inversion, New Horizons in Nanophotonics, Royal Society meeting, Chichley Hall, UK, May 2016.
  • Tunable Dirac Polaritons in Cavity-Embedded Honeycomb Metasurfaces, Rank Prize Symposium on Electromagnetic Metasurfaces, Grasmere, UK, March 2017.
  • Unconventional Dirac Polaritons in Cavity-Embedded Honeycomb Metasurfaces, APS March Meeting, Los Angeles, USA, March 2018.

Collaborations

  • Thomas J. Sturges - University of Warsaw, Poland.
  • Guillaume Weick - University of Strasbourg, France.
  • Fabian Pauly - University of Konstanz, Germany / Okinawa Insitute of Science and Technology, Japan.
  • Simon Lamowski - University of Konstanz, Germany / Okinawa Insitute of Science and Technology, Japan.

Teaching

  • Demonstrator for Thermal Physics, Electromagnetism II, Condensed Matter Physics, Quantum Mechanics, Mathematics 1, Mathematics 2, and Mathematics with Physical Applications. 

Outreach

  • Leader of the "Metabuddies" program aimed at getting early career researchers into schools.
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