title: Real-time shot-noise-limited differential photodetection for atomic quantum control.
abstract: We demonstrate high-efficiency, shot-noise-limited differential photodetection with real-time signal conditioning, suitable for feedback-based quantum control of atomic systems. The detector system has quantum efficiency of 0.92, is shot-noise-limited from 7.4×105to 3.7×108photons per pulse, and provides real-time voltage-encoded output at up to 2.3 M pulses per second.
authors.forename: F
authors.initials: F
authors.lastname: Martin Ciurana
authors.forename: G
authors.initials: G
authors.lastname: Colangelo
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Sewell
authors.forename: Morgan W
authors.initials: MW
authors.lastname: Mitchell