Sunish Mathews completed B.Sc in Physics and M.Sc. in Applied Physics from CMS College (Mahatma Gandhi University), Kottayam, India. He qualified the Graduate Aptitude Test in Engineering (GATE) and joined the Indian Institute of Technology (IIT) Guwahati as a Research Assistant for a project on the development and optical charecterization of novel nonlinear optical materials with high nonlinearity.

He received his PhD degree from Dublin Institute Technology (DIT), Ireland. His doctoral research was focussed on all-optical sensors based on photonic crystal fibres for electromagnetic field sensing. He has worked as a postdoctoral researcher at DIT for the development and integration of miniature fibre optic sensors to provide force feedback for handheld laparoscopic surgical instruments.

He is currently a Research Associate in the Wellcome/EPSRC Centre for Interventional & Surgical Sciences and the Department of Medical Physics & Biomedical Engineering at UCL, where he is developing all-optical probes for photoacoustic sensing, intravascular imaging and ultrasonic needle tracking. His research interest includes fiber optic sensors for minimally invasive surgery and for detection of ultrasound in biomedical imaging.