Stable single-photon source in the near infrared

Near-Infrared Single-Photon Detection

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...

Single Photon Avalanche Photodiodes for Near-Infrared Photon Counting

InP-based single photon avalanche diodes (SPADs) have proven to be the most practical solution currently available for many applications requiring high-performance photon counting at near-infrared wavelengths between 1.0 and 1.6 μm. We describe recent progress in the design, characterization, and modeling of InP-based SPADs, particularly with respect to the dark count rate vs. photon detection ...

Negative Feedback Avalanche Diodes for Near-infrared Single Photon Detection

In recent years significant progress has been made in near-infrared single photon detection using Geiger-mode InPbased single photon avalanche diodes (SPADs). A more detailed understanding of these detectors with regard to device design, material growth and device fabrication has led to continual performance improvements. A variety of circuits for enabling SPAD Geiger-mode operation have been p...

Single Photon Source

Single photon sources are introduced as emitters which deliver one photon at one time. The necessity of developing single photon sources, related principles and the development of single photon sources are also discussed in this essay.