When two indistinguishable photons are each incident on separate input ports of a
beamsplitter, they “bunch” deterministically, exiting via the same port as a direct …

We generate ultrabroadband biphotons via the process of spontaneous parametric down-
conversion (SPDC) in quasi-phase-matched nonlinear gratings that have a linearly chirped …

Entangled-photon pairs (biphotons) generated by spontaneous optical parametric down-
conversion exhibit a number of properties that are analogous to those of ordinary photons …

Entangled photon pairs have been used for molecular spectroscopy in the form of entangled
two-photon absorption and in quantum interferometry for precise measurements of light …

Twin-photon techniques for photo-detector calibration Page 1 Laser Physics Letters Twin-photon
techniques for photo-detector calibration To cite this article: G Brida et al 2006 Laser Phys. Lett. 3 …

We have observed the ultraslow propagation of matched pulses in nondegenerate four-
wave mixing in a hot atomic vapor. Probe pulses as short as 70 ns can be delayed by a …

Traditional Hong-Ou-Mandel (HOM) interferometry, insensitive to photons phase mismatch,
proved to be a rugged single-photon interferometric technique. By introducing a post-beam …

Spontaneous parametric down-conversion (SPDC) is the most widely used process for
generating photon pairs entangled in various degrees of freedom such as polarization, time …

Reports that the quantum correlation of paired photons produced in nonlinear optical
crystals promises metrologists absolute measurements that do not require absolute …

The quantum clock synchronization based on frequency-correlated photon pairs and HOM
interference has shown femtosecond-level precision and great application prospect in …