The generation of single photons in the mid-infrared spectral region is attracting the interest
of scientific and technological research, motivated by the potential improvements that many …

Quantum memories for light are important components for future long-distance quantum
networks. We present on-chip quantum storage of telecommunication-band light at the …

Spontaneous parametric down-conversion (SPDC) in a nonlinear crystal has been a
workhorse for the generation of entangled and correlated single-photon pairs used for …

We systematically studied the relation between the conditional auto-correlation function
(CACF) and cross-correlation function (CCF) of biphotons or pairs of single photons. The …

Biphotons, generated from a hot atomic vapor via the process of spontaneous four-wave
mixing (SFWM), have the following merits: Stable and tunable frequencies as well as …

We report the generation of biphotons, with a temporal full width at the half maximum
(FWHM) of 13.4±0.3 µs and a spectral FWHM of 50±1 kHz, via the process of spontaneous …

We utilized the all-copropagating scheme, which maintains the phase-match condition, in
the spontaneous four-wave mixing (SFWM) process to generate biphotons from a hot atomic …

We demonstrate a frequency multiplexed photon pair generation based on a quadratic
nonlinear optical waveguide inside a cavity which confines only signal photons without …

A single-photon source with narrow bandwidth, high purity, and large brightness can
efficiently interact with material qubits strongly coupled to an optical microcavity for quantum …

We report, to the best of our knowledge, the first optical parametric oscillator (OPO) pumped
by a visible AlGaInP-based vertical-external-cavity surface-emitting laser (VECSEL) …