Optical microcavities confine light to small volumes by resonant recirculation. Devices based
on optical microcavities are already indispensable for a wide range of applications and …

Lasers and LEDs have a statistical distribution in the number of photons emitted within a
given time interval. Applications exploiting the quantum properties of light require sources …

Time-correlated single photon counting (TCSPC) is based on the detection of single photons
of a periodic light signal, measurement of the detection time of the photons, and the build-up …

The concept of the photon, central to Einstein's explanation of the photoelectric effect, is
exactly 100 years old. Yet, while photons have been detected individually for more than 50 …

Electroluminescence from a single quantum dot within the intrinsic region of a pin junction is
shown to act as an electrically driven single-photon source. At low injection currents, the dot …

Entangled photon pairs are an important resource in quantum optics, and are essential for
quantum information applications such as quantum key distribution, and controlled quantum …

Fundamentally secure quantum cryptography has still not seen widespread application
owing to the difficulty of generating single photons on demand. Semiconductor quantum-dot …

Biexciton properties strongly affect the usability of a light emitter in quantum photon sources
and lasers but are difficult to measure for single fluorophores at room temperature due to …

In a classical light source, such as a laser, the photon number follows a Poissonian
distribution. For quantum information processing and metrology applications, a non-classical …

We report on Rabi oscillations of the biexciton in a single In x Ga 1− x As∕ Ga As quantum
dot, induced via a coherent two-photon process. In contrast to single-exciton Rabi …