For the pioneering development of high-quantum-efficiency photon detectors and of number-resolving photon detectors.
The criterion for election is exceptional contributions to the physics enterprise; e.g., outstanding physics research, important applications of physics, leadership in or service to physics, or significant contributions to physics education. Fellowship is a distinct honor signifying recognition by one's professional peers.
For the pioneering development of high-quantum-efficiency photon detectors and of number-resolving photon detectors; and for the application of those detectors to experiments in quantum optics, quantum information, and investigations of the foundations of quantum mechanics.