Room temperature triggered single-photon source in the near infrared

Room temperature stable single - photon source

We report on the realization of a stable solid state room temperature source for single photons. It is based on the fluorescence of a single nitrogen-vacancy (NV) color center in a diamond nanocrystal. Antibunching has been observed in the fluorescence light under both continuous and pulsed excitation. Our source delivers 2 × 10 s−1 single-photon pulses at an excitation repetition rate of 10 MH...

Electrically driven single-photon source at room temperature in diamond

Single-photon sources that provide non-classical light states on demand have a broad range of applications in quantum communication, quantum computing and metrology1. Singlephoton emission has been demonstrated using single atoms2, ions3, molecules4, diamond colour centres5,6 and semiconductor quantum dots7–11. Significant progress in highly efficient8,11 and entangled photons9 sources has rece...

Single InAs nanowire room-temperature near-infrared photodetectors.

Here we report InAs nanowire (NW) near-infrared photodetectors having a detection wavelength up to ∼1.5 μm. The single InAs NW photodetectors displayed minimum hysteresis with a high Ion/Ioff ratio of 10(5). At room temperature, the Schottky-Ohmic contacted photodetectors had an external photoresponsivity of ∼5.3 × 10(3) AW(-1), which is ∼300% larger than that of Ohmic-Ohmic contacted detectors...

Near-Infrared Single-Photon Detection

Deterministic Single-Phonon Source Triggered by a Single Photon.

We propose a scheme that enables the deterministic generation of single phonons at gigahertz frequencies triggered by single photons in the near infrared. This process is mediated by a quantum dot embedded on chip in an optomechanical circuit, which allows for the simultaneous control of the relevant photonic and phononic frequencies. We devise new optomechanical circuit elements that constitut...