Chair of the Communications Policy Panel
Professor Stewart has been a member of the IET Communication Policy Panel since its creation in November 2002 and Chairman since June 2008.
Previously the Chief Scientist at Marconi with wide interests in technologies from communications to bio sensing, he was educated at Imperial College (Physics). His personal interests have been in optical fibre communications and optoelectronics.
Recent interests include microstructured photonic materials (photonic crystals), optical slow-wave structures, nanomechanical systems and the application of various optical, semiconductor and acoustic technologies to medicine, particle physics and industrial processes.
He is a visiting Professor at UCL and at the ORC at Southampton. He is author on some 64 conference and journal papers, including many invited papers, and on 48 patents. He is a member of the editorial advisory board for the journal 'Science'.