Author: Ronen Shekel Quantum and classical ghost imaging Ghost imaging, one of the first imaging techniques using quantum light, has captivated researchers since its inception in the mid-1990s. The...
Author: Ronen Shekel In a previous post, we talked about how periodic poling provides quasi-phase-matching, its various benefits, and the control it provides over different SPDC parameters. SPDC light is...
Using the Hog-Ou-Mandel effect for imaging The Hong-Ou-Mandel (HOM) effect is a cornerstone of modern quantum optics. Originally proposed and demonstrated in 1987 by Chung-Ki Hong, Zhe-Yu Ou, and...
Quasi phase matching with periodic poling The generation of pure nonclassical states of light is one of the most important goals of optical quantum information science. A popular...
Introduction to Spatial Entanglement in SPDC One of the most remarkable features of quantum theory is entanglement, where quantum systems show nonlocal correlations between particles or photons that are...
Induced coherence and imaging with undetected photons One of the most beautiful experiments with SPDC light is that of induced coherence. It has originally been demonstrated and analyzed by...
The birth of SPDC photons In nonlinear crystals, a special nonlinear process occurs. A pump photon is spontaneously converted into two complementary photons with lower energy. In this process...
The Physics Nobel Prize Celebrates the success ofQuantum Entanglement Raicol congratulates Prof. Alain Aspect, Prof. John Clauser and Prof. Anton Zeilinger for receiving the Nobel Prize, the most prestigious...
ppKTP Selection Guide PPKTP Crystal is a quasi-phased-matched crystal that converts light of one wavelength into a different wavelength. The original purpose of this crystal was humble: It was...
In spontaneous parametric down-conversion (SPDC), a pump beam is converted into pairs of correlated photons known as the signal and idler. These correlations can manifest in various ways, one...