CORNERSTONE Coordinator Dr Callum Littlejohns completed his PhD in the field of Silicon Photonics at the Optoelectronics Research Centre, University of Southampton in March 2015, having previously obtained a First-Class Honours degree in Electronic Engineering at the University of Surrey. He has a track record of excellence, having received multiple awards throughout his academic life, including the Information Overload category winner at the 2015 EPSRC ICT Pioneers Awards. Callum has published a book chapter, over 40 papers in peer-reviewed journals, and over 120 international conference papers, including a prestigious post-deadline paper at the 2014 IEEE Group IV Photonics conference. The work completed during Callum’s PhD has been protected by two separate patents, both fully supported by the University of Southampton. He has served as the conference chairman at the Silicon Photonics conference as part of the Photonex Europe exhibition for the previous 5 years.