Our blog

Why are industrial companies switching to industrial RTP (iRTP)?

A growing number of companies are switching to industrial. RTP crystals for electro-optic Pockels cells In the past year, there has been a growing trend for industrial companies to switch...
Dispersion cancellation of spectrally entangled photons
March 18th, 2025
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 […]
What is sPPKTP and why did we develop it?
February 24th, 2025
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 […]
Narrow-bandwidth SPDC and its relation to a short polling period in KTP
December 4th, 2024
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
A brief history of ghost imaging
November 20th, 2024
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
Tailoring Quantum States with Aperiodic Poling
October 14th, 2024
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
Quasi phase matching with periodic poling
September 11th, 2024
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
Introduction to spatial entanglement in SPDC
Introduction to spatial entanglement in SPDC
July 10th, 2024
One of the most remarkable features of quantum theory is entanglement, where quantum systems show nonlocal correlations between particles or photons that are impossible to explain using
Quantum Optics
Using the Hog-Ou-Mandel effect for imaging
June 26th, 2024
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 Leonard Mandel from the
Quantum-light-scaled.
Induced coherence and imaging with undetected photons
May 21st, 2024
One of the most beautiful experiments with SPDC light is that of induced coherence. It has originally been demonstrated and analyzed by Zou, Wang, and Mandel in 1991 and is discussed and utilized to this day.
OPCPA based on LBO- The road to petawatt lasers
April 30th, 2024
Having high threshold damage, LBO crystals for optical parametric amplification (OPA) combined with chirp pulse amplification (CPA)- (OPCPA) serves as a powerful tool to achieve very high laser peak powers...
Polarization Entanglement – From crystals to sources and application
March 5th, 2024
Photonics plays a significant role in the emerging quantum information industry, and entangled photon pairs are the workhorse of many key applications in quantum optics, where each application utilizes a...
PPKTP Crystal Selection Guide
February 5th, 2024
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 designed to...

Download Catalog

Download Quantum Catalog

Skip to content