Quantum entanglement stands as one of the most profound and practically significant phenomena in modern physics. In communication, entangled photons enable quantum key distribution schemes whose security is guaranteed by the laws of physics, rather than by assumptions about computational hardness. In computation, large entangled states are what allow...

Imagine a box with two balls: one red, one blue. Alice takes one ball to Mars and Bob takes the other to Andromeda. The moment Alice opens her box and sees a blue ball: she instantly knows Bob's is red. This might seem like what Einstein called "spooky action at a distance" [1], but it is not entanglement. This is classical correlation. The properties were fixed from the start.

In modern quantum optics and integrated photonics, precise control over light is essential. Laboratories and industrial applications require devices that offer high speed, stability, and reproducibility. Raicol has established itself […]

Author: Ronen Shekel Medical imaging relentlessly pushes toward higher resolution. Distinguishing features separated by mere micrometers can mean the difference between early disease detection and a missed diagnosis. However, conventional […]

Author: Ronen Shekel Even the most stable laser isn’t perfectly quiet. The fact that light comes in discrete photons introduces statistical fluctuations known as shot noise, leading to the standard […]

Author: Ronen Shekel Building large-scale quantum networks hinges on connecting different quantum systems, but these often operate at distinct optical wavelengths. Nitrogen-vacancy centers in diamond, for instance, are excellent candidates […]

Author: Ronen Shekel Spontaneous parametric down-conversion (SPDC) is a cornerstone of quantum optics, enabling the generation of entangled photon pairs with remarkable properties. One such property, dispersion cancellation, reveals how […]

Author: Ori levin At Raicol, as a world leader in the manufacture of PPKTP, our goal is to support the growing quantum industry and drive it forward as much as […]

Raicol, a renowned leader in PPKTP manufacturing, is committed to propelling the quantum industry forward through state-of-the-art solutions. Over the past few years, our relentless pursuit of excellence has led to

Ghost imaging, one of the first imaging techniques using quantum light, has captivated researchers since its inception in the mid-1990s. The concept of ghost imaging was first demonstrated in 1995 by

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 used for numerous

The generation of pure nonclassical states of light is one of the most important goals of optical quantum information science. A popular and versatile source for creating such states is spontaneous