Dr Paul Dean

Photographic portrait of Dr Paul Dean

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Division: School of Electronic and Electrical Engineering
Organisation: University of Leeds
Tags: Fellowship: Career Acceleration Fellowship, Researcher, University of Leeds
Related theme: Engineering ICT Physical Sciences

Biography

After completing an undergraduate degree in Physics at The University of Manchester, I studied for a PhD in Laser Physics within the Laser Photonics Group at Manchester. In 2005 I undertook a post-doctoral research position within The Institute of Microwaves and Photonics at The University of Leeds, and was awarded an EPSRC Career Acceleration Fellowship in 2011.

My Fellowship

My fellowship programme aims to develop a broad range of techniques to exploit fully, for the first time, the phase-stable (‘coherent’) nature of TQCL radiation, thereby opening-up a wide range of new opportunities across the field of terahertz photonics.

The terahertz region of the electromagnetic spectrum spans the frequency range between microwaves and the mid-infrared. Historically, this is the most illusive and least-explored region of the spectrum, predominantly owing to the lack of suitable laboratory sources of terahertz frequency radiation, particularly high-power, compact, room-temperature solid-state devices. Nevertheless, over the past decade, terahertz frequency radiation has attracted much interest for the development of new imaging and spectroscopy technologies, owing to its ability to discriminate samples chemically, to identify changes in crystalline structure, and to penetrate dry materials enabling sub-surface or concealed sample investigation.

One of the most significant recent developments within the field of terahertz photonics has been the terahertz quantum cascade laser (TQCL). These high-power compact semiconductor sources have opened up a host of new opportunities in the field of terahertz photonics and have attracted significant research interest world-wide. My fellowship aims to initiate a range of research programmes with the aim of probing, manipulating and utilising the coherent nature of TQCL radiation. This will lay the foundations for a wealth of research opportunities in terahertz photonics, as well as facilitating the exploitation of terahertz technology for fundamental science and also for real-world applications.