and Optics at the University of Rochester when he died at the age of 73 at his home in Pittsford, New York.

Mandel published over 260 scientific papers dealing with problems of optical coherence, lasers, quantum interactions and non-classical states of light. Together with Prof. Emil Wolf, Mandel organized a series of international conferences, known as the Rochester Conferences on Coherence and Quantum Optics, which were extremely influential