Gilles Freddy Feutmba is a Student Member of SPIE and the next community member to answer our 'Why Light?' series. The series is leading up to the second annual International Day of Light this 16 May, and asks members of the SPIE community to explain why they feel light is so important. Gilles is PhD Candidate at Ghent University working on the dense integration of ferro-electric Lead Zirconate Titanate (PZT) based silicon phase modulators for diverse applications ranging from LiDAR to displays. He is also Vice President of the university's SPIE Student Chapter. He is an active Member of SPIE, serving on the Membership and Communities Committee, as well as the Student Chapter Subcommittee and the Student and Early Career Professionals ad hoc Committee. He answers for us what light means to him and to the greater global community. Gilles Freddy Feutmba What about light inspires you? Everything about light fascinates me, from the fundamental physics to the beau...