1. Optical-Bio Microsystems Laboratory, Department of Mechanical & Industrial Engineering, Concordia University, 1455 De Maisonneuve Boulevard West, Montreal, Quebec H3G 1M8, Canada
2. Optoelectronics
Research Group, School of Engineering, University of Glasgow, Rankine Building,
Oakfield Avenue, Glasgow G12 8LT, Scotland, U.K.
3. Institute
of Photonics, Wolfson Centre, University of Strathclyde, Glasgow G4 ONW, Scotland, U.K.