Here is a collection of Optics and Photonics Group logos in .eps and .png formats. Credit to the original designer Anas Hashmi (later redesigned by Rikesh Patel).
Colours (in RGB): OPG1 - #008385, OPG2 - #275354, Engineering - #68898C, University - #27366D
Original PNG/Original EPS
White PNG/White EPS
University logo PNG/University logo EPS
University logo single colour PNG/University logo single colour EPS