David Leslie Andrews, FRSC, FInstP (born 15 October 1952) is a British scientist appointed as Professor of Chemical Physics at the University of East Anglia, where he was the Head of Chemical Sciences and Physics, from 1996 to 1999.^[1]

Andrews and his research group are known for wide-ranging theory work on optical phenomena, developing quantum electrodynamical theory^[2][3][4][5] and symmetry principles^[6][7][8] for numerous applications including fluorescence,^{[9][10][11][12]} and optical nanomanipulation.^{[13][14][15][16][17]} Andrews is also known for pioneering work on the quantum theory of intermolecular energy transfer,^{[18][19][20][21]} in which he developed the unified theory of energy transfer that accommodates both radiationless and radiative processes.^{[22][23][24][25]} He has also made other notable contributions to quantum optics and nonlinear optics,^[26][27][28] with many studies of chiral interactions including a prediction of the hyper–Rayleigh scattering effect,^[29] while studies of chirality and optical helicity^[30][31][32] led to his research group's many contributions to the theory of optical vortices.^{[33][34][35][36][37][38]}

Andrews is the author of over four hundred scientific papers and technical books. He has been instrumental in launching several international conference series, including a series of International Conferences on Optical Angular Momentum. Many others are conferences run by SPIE – the global society for optics and photonics, of which he is a Fellow member and 2021 President. He is also a Fellow of the Royal Society of Chemistry, the Institute of Physics, and the Optical Society of America. In his spare time he is an active member of his local church, he paints landscapes, and he writes occasional poetry.

David Andrews attended Colfe's Grammar School, Lee, London, U.K. from 1963 to 1970. He graduated (1st Class Hons) in Chemistry, from University College London in 1973. He then obtained a PhD in theoretical chemistry from the same university, in 1976.

From 1976 to 1978, Andrews was an Associate Research Assistant in the Department of Mathematics and Honorary Research Associate in Department of Chemistry, in University College London. In 1978, he became Science Research Council Postdoctoral Fellow and in 1979 he joined the University of East Anglia as a Lecturer. Andrews was promoted to Senior Lecturer in 1991 and to Reader in 1994. He was appointed Professor of Chemical Physics in 1996^[1] and became Emeritus Professor in 2023.^[39]

• 2023: Thomas Young Medal and Prize^[40]
• 2022: Faraday Division Horizon Prize^[41]
• 2022: Immediate Past-President of SPIE
• 2021: President of SPIE^[42]
• 2020: President-Elect SPIE^[42]
• 2019: Vice-president SPIE
• 2016: Elected Fellow of The Optical Society^[43]
• 2005: Elected Fellow of SPIE^[44]
• 1999: Elected Fellow of the Institute of Physics
• 1988: Elected Fellow of the Royal Society of Chemistry

• Andrews, D.L. (1986). Lasers in Chemistry (first ed.). Berlin, Heidelberg, New York: Springer-Verlag. doi:10.1007/978-3-642-96933-1. ISBN 978-3-642-96933-1.
• Andrews, D.L., ed. (1990). Perspectives in Modern Chemical Spectroscopy. Berlin, Heidelberg, New York: Springer-Verlag. doi:10.1007/978-3-642-75456-2. ISBN 978-3-642-75456-2.
• Andrews, D.L. (1990). Lasers in Chemistry (second ed.). Berlin, Heidelberg, New York: Springer-Verlag. doi:10.1007/978-3-642-97212-6. ISBN 978-3-642-97212-6.
• Andrews, D.L., ed. (1992). Applied Laser Spectroscopy: Techniques, Instrumentation and Applications. New York, Weinheim, Cambridge: VCH. ISBN 978-3-527-28072-8. OCLC 473385274.
• Andrews, D.L.; Davies, A.M.C., eds. (1995). Frontiers in Analytical Spectroscopy. Cambridge: Royal Society of Chemistry. ISBN 978-0-854-04730-7. OCLC 473311866.
• Andrews, D.L.; Demidov, A.A., eds. (1995). An Introduction to Laser Spectroscopy (first ed.). New York: Plenum. doi:10.1007/978-1-4613-0337-4. ISBN 978-1-4613-0337-4.
• Andrews, D.L. (1997). Lasers in Chemistry (third ed.). Berlin, Heidelberg, New York: Springer-Verlag. doi:10.1007/978-3-642-60635-9. ISBN 978-3-642-60635-9. S2CID 93727414.
• Andrews, D.L.; Demidov, A.A., eds. (1999). Resonance Energy Transfer. Chichester, New York, Weinheim: Wiley. ISBN 978-0-471-98732-1.
• Andrews, D.L.; Demidov, A.A., eds. (2002). An Introduction to Laser Spectroscopy (second ed.). New York, Boston, Dordrecht: Kluwer Academic/Plenum. doi:10.1007/978-1-4615-0727-7. ISBN 978-1-4615-0727-7.
• Andrews, D.L.; Allcock, P. (2002). Optical Harmonics in Molecular Systems. Weinheim: Wiley VCH. ISBN 978-3-527-60274-2.
• Andrews, D.L., ed. (2005). Energy Harvesting Materials. New Jersey, London, Singapore: World Scientific. doi:10.1142/5891. ISBN 978-981-256-412-2.
• Andrews, D.L.; Gaburro, Z., eds. (2007). Frontiers in Surface Nanophotonics: Principles and Applications. Optical Sciences. Vol. 133 in Springer Series in Optical Sciences. New York: Springer-Verlag. doi:10.1007/978-0-387-48951-3. ISBN 978-0-387-48951-3.
• Andrews, D.L., ed. (2008). Structured Light and its Applications: An Introduction to Phase-Structured Beams and Nanoscale Optical Forces. Burlington MA: Academic Press. doi:10.1016/B978-0-12-374027-4.X0001-1. ISBN 978-0-12-374027-4.
• Andrews, D.L., ed. (2009). Encyclopedia of Applied Spectroscopy. Weinheim: Wiley VCH. ISBN 978-3-527-40773-6. OCLC 751034077.
• Andrews, D.L.; Scholes, G.D.; Wiederrecht, G.P., eds. (2011). Comprehensive Nanoscience and Nanotechnology. Vol. 1–5 (first ed.). London, Burlington MA, San Diego CA: Academic Press. ISBN 978-0-12-374396-1.
• Andrews, D.L.; Babiker, M., eds. (2012). The Angular Momentum of Light. Cambridge, New York: Cambridge University Press. doi:10.1017/CBO9780511795213. ISBN 978-0-511-79521-3.
• Andrews, D.L. (2014). Molecular Photophysics and Spectroscopy (first ed.). San Rafael CA: Morgan & Claypool. ISBN 978-1-627-05287-0.
• Andrews, D.L., ed. (2015). Photonics. Vol. 1–4. Hoboken NJ: Wiley. ISBN 978-1-118-22552-3.
• Andrews, D.L.; Grote, J.G., eds. (2015). New Horizons in Nanoscience and Engineering. Bellingham WA: SPIE Press. doi:10.1117/3.2196174. ISBN 978-1-62841-795-1.
• Andrews, D.L.; Bradshaw, D.S. (2016). Optical Nanomanipulation (first ed.). San Rafael CA: Morgan & Claypool. ISBN 978-1-6817-4464-3.
• Andrews, D.L.; Bradshaw, D.S. (2018). Introduction to Photon Science and Technology. Bellingham WA: SPIE Press. ISBN 978-1-5106-2195-4.
• Andrews, D.L.; Nann, T.; Lipson, R.H., eds. (2019). Comprehensive Nanoscience and Nanotechnology. Vol. 1–5 (second ed.). London, Burlington MA, San Diego CA: Academic Press. ISBN 978-0-12-812296-9.
• Ribeiro, P.; Andrews, D.L.; Raposo, M., eds. (2019). Optics, Photonics and Laser Technology 2017. Springer Series in Optical Sciences. Vol. 222 in Springer Series in Optical Sciences. New York: Springer. doi:10.1007/978-3-030-12692-6. ISBN 978-3-030-12692-6. S2CID 239152546.
• Al-Amri, M.D.; Andrews, D.L.; Babiker, M., eds. (2021). Structured Light for Optical Communication. Amsterdam: Elsevier. doi:10.1016/C2019-0-00727-3. ISBN 978-0-12-821510-4. S2CID 242131667.
• Andrews, D.L.; Lipson, R.H. (2021). Molecular Photophysics and Spectroscopy (second ed.). Bristol: IOP Publishing. doi:10.1088/978-0-7503-3683-3. ISBN 978-0-75-033681-9. S2CID 234926474.
• Andrews, D.L.; Bradshaw, D.S. (2022). Optical Nanomanipulation (second ed.). Bristol: IOP Publishing. doi:10.1088/978-0-7503-4191-2. ISBN 978-0-7503-4189-9. S2CID 247422236.