Emeritus Member Alain Aspect is known for his experiments illuminating the most intriguing properties of quantum mechanics. His Bell's inequalities tests with pairs of entangled photons (1982) have contributed to settle a debate between Albert Einstein and Nils Bohr, started in 1935. He has also, with Philippe Grangier, given a striking demonstration of wave-particle duality for a single photon, and realized the Wheeler's delayed choice experiment.
Aspect is the recipient of the 2013 Frederic Ives Medal for "carrying out pioneering research on photons and atoms shedding light on the most intriguing quantum phenomena and prompting the development of the new field of quantum information." He was also awarded the 2012 Herbert Walther Award, and the 1999 Max Born Award. He has been a Fellow since 2000.
He currently serves on Optica's Frederic Ives Medal/Jarus W. Quinn Prize Committee.