Knight is Chair of the UK National Quantum Technology Programme Strategy Advisory Board and has been involved in the creation of the UK Quantum programme since its inception, including the creation of the UK Quantum Strategy and the commitment of £2.5bn over the next decade to the field. He is Senior Research Investigator at Imperial College. He was knighted in 2005 for his work in optical physics. Knight was the 2004 President of the Optical Society of America and 2011-2013 President of the Institute of Physics. He was until 2010 chair of the UK Defence Scientific Advisory Council and remains a UK Government science advisor. His research centres on quantum technology.