Professor Roger Reeves

Professor Roger Reeves

Principal Investigator

Phone: 03 364 2572

Postal Address:

Department of Physics & Astronomy
University of Canterbury
Private Bag 4800
Christchurch 8140

Roger Reeves is a Professor of Physics and currently Head of Department at the University of Canterbury. In general terms, his research interests concern the optical properties of materials.  Investigations have covered solid state laser development, the nonlinear optical properties of photorefractive crystals and the spectroscopy of new semiconductors and fabricated nanostructures.  A distinctive characteristic of these studies has been the extensive use of student input in research projects that develop their education

They have developed an extremely sensitive spectroscopic technique called Combined Excitation-Emission Spectroscopy (CEES) that has dramatically shortened the time needed to fully explore both the emission and laser-excitation spectra of atoms.  CEES of rare-earth ions have been used for the first time to probe the optical properties of superlattices of insulating materials.  The sensitivity of their technique has allowed atomic monolayer resolution to be realised in a spectroscopic experiment.

They have made significant progress in the understanding of the optical properties of two very important semiconductors.  Their photoluminescence (PL) studies have been able to identify a low energy feature in Mg-doped InN that correlates to the onset of p-type conductivity.  This discovery will significantly contribute to the large indium-gallium-nitride optoelectronics industry.  At the other end of the spectrum their rigorous studies of ZnO have revealed subtle differences in the PL spectra from the two polar faces.

 

 

Associated Content

Structural properties of materials at the nanoscale (Reeves, Gaston)

The difference between trapping by tunnelling through the bandgap barriers and trapping at defect sites will be investigated. The results will contribute to understanding charge transport properties in wide-band gap optical materials. Our theoretical insight will also be applied to calculate the structures of metallic systems from first-principles, developing new techniques that enable us to […]

Nov
29

UV Tuneable Laser Source

“You just realise that you’ve got this new capability that you had no way of getting out of universities. It almost seems like toys for us to play with!” – Roger Reeves. About the Equipment: The tuneable laser source produces any wavelength of light from red to UV. It is made up of two lasers […]

Jan
01

Roger Reeves Awarded the T. K. Sidey Medal

MacDiarmid Institute researcher Associate Professor Roger Reeves, has been awarded the T. K Sidey Medal in recognition of his outstanding contribution to research intrinsically associated with electromagnetic radiation. The T. K. Sidey Medal is awarded at irregular intervals for outstanding scientific research concerning electromagnetic radiation. This research comprises applications in any way beneficial to human […]

Profile: Giang Dang – Postdoctoral Fellow

MESA Chairperson Brendan Darby had a chat with a couple of students at different stages of their careers.  Meet postdocoral fellow, Giang Dang. Can you give a brief overview of your journey to New Zealand in science? I was born in Vietnam, and went to Russia to take my specialist degree, where the diploma is […]

Material Century Demands High Value Products

The time has come to make money-making ventures a priority, and The MacDiarmid Institute has a number of projects which fit the bill.  The MacDiarmid Institute’s Science Leader of Materials for High Value Technologies, Roger Reeves, says New Zealand needs to focus on making things that are relatively specialised. “If we start making 10 million […]

Lighting up the World

  As your eye ages, the proteins in your lens starts to yellow, colouring your world to a darker, redder hue, with often a resulting depressive effect in your mood. What if a change in household lighting could make your world, not just a brighter place, but one which gave you back the colours of […]

The MacDiarmid Institute Discovery Awards

  The first five Discovery Awards pupils, Ben Jones, Kate Tartawhiti, Nikita Hunia, PJ Campbell and Jardin Rose, along with teachers and members of their families, were welcomed to the programme in December. Three of the pupils will be placed at the University of Canterbury and two at Victoria University of Wellington. These are pupils […]

One Day in the Life – Profiles of three extraordinary PhD students – Rueben Mendelsberg, Sam Yu and Phill Anderson

  Michele Taylor Rueben Mendelsberg speaks with a distinct Denver accent. He wears a manaia-shaped greenstone around his neck and celebrates Yom Kippur. He rides a unicycle, fishes for trout and loves lasers. About fifteen years ago, his art professor father brought one home as an objet d’art. It was a plastic plug-in model: one foot long and four inches in diameter. “I loved […]

The First International Meeting of Alan G. MacDiarmid Institutes held at Chonnam University, Gwangju, Korea, 10-12 April 2006

Institutes attending the meeting were: • The ARC Centre of Excellence for Materials Science, Intelligent Polymer Research Institute, University of Wollongong, Australia (represented by Dr Peter Innes); • The MacDiarmid Institute of Innovation and Business, Sao Carlos, Brazil (represented by Dr Luiz Mattoso from the Agriculture Instrumentation Research Center of Embrapa); • The MacDiarmid Laboratories for Polymer Research, Karnatak University, […]

Green Light for Spectroscopy

Traffic lights, the sun, and semi-conductors. What’s the connection? Dr Roger Reeves at Canterbury University shines a light on the answer for Mike Bodnar… If all the bulbs in Japan’s traffic lights were replaced with light-emitting diodes, generating green, amber and red light, the country could shelve some of its future nuclear power proposals. That’s just one practical application […]