Next generation fibre sensors -- Kyriacos Kalli

Описание: Kyriacos Kalli Hot Topics presentation from SPIE Photonics Europe 2012.

http://spie.org/photonicseurope

Next generation fibre sensors
Kyriacos Kalli, Nanophotonics Research Laboratory, Cyprus Univ. of Technology, Cyprus


Fibre sensors have been the subject of vigorous research activity for more than forty years, but have yet to reach their anticipated, ground-breaking role in real-world applications. This challenge has gained a new momentum with the development of innovative fibre types and the emergence of novel sensing concepts. This is particularly the case for microstructure optical fibres, where a myriad of fibre geometries are possible; when coupled with new host materials, infusion of the holey structure and doping, increased functionalisation is possible for sensing. A further impetus has been given to conventional optical fibre sensors; the advent of femtosecond lasers has added extraordinary versatility and flexibility to sensor development. Both sensor inscription and fibre micromachining are readily possible on a common platform, offering the opportunity to tailor the mechanical and optical properties of sensor devices.
In this plenary session, the latest developments in fibre sensors will be presented, with particular consideration to the versatility of optical fibre sensors. The development of embedded, advanced microstructure fibre grating sensors in glasses and polymers will be presented. Recent advances in infiltrated microstructure fibre sensors using ferrofluids for magnetic field measurements will be discussed, as will surface plasmon sensors for measuring low refractive indices required for bio-photonics and sensors tailored for measurements in harsh radiation environments. Moreover, the use of femtosecond lasers in developing vectorial fibre sensors and diffractive micro-optical elements for sensing will be reviewed. Finally, we will consider what the future may hold for sensor development.

Biography: Kyriacos Kalli is an Assistant Professor in the Department of Electrical Engineering/Computer Engineering and Informatics at the Cyprus University of Technology (2008 onwards). He received the Ph.D. in Physics (1992) from the University of Kent, UK. From 1994 - 1996 he lectured and undertook research at the University of Kent into the use of fibre Bragg gratings in multiplexed sensor arrays and Raman spectroscopy. At the University of Cyprus he was engaged in research into integrated gas flow and gas sensors based on porous silicon micromachining, fluorescence spectroscopy, and non-destructive evaluation of semi-conductors. From 2001 to 2007 he was a lecturer at the Higher Technical Institute, where he created the Nanophotonics Research Laboratory. His research interests are in Bragg grating and optical fibre sensors, photonic switching devices, multiplexing of optical sensors and laser material interactions. Dr. Kalli has more than 150 journal and conference publications and many book chapters, and has given several invited talks at international conferences. He is co-author of the book "Fiber Bragg Gratings: Fundamentals and Applications in Telecommunications and Sensing".