Laminex have colour centres in various locations.

In this study, we show that colour centres can be produced by irradiating calcium oxide with soft X-rays from a synchrotron radiation source.

The colour centres are formed as a nano-particle suspension within the glass and this acts as an efficient UV blocker.

Using the X-ray excited optical luminescence (XEOL) technique, two colour centres, F-centre, and F+-centre can be identified.

After the initial exposure, excited electrons in the phosphor material remain 'trapped' in 'colour centres' ("F-centers") in the crystal lattice until stimulated by the second illumination.

In addition, by performing time-resolved XEOL (TRXEOL), we are able to reveal timing and decay characteristics of the colour centres.

For a list, visit Laminex' website (link centre page) At these colour centres, you can see the full range of colours in full sheets rather than small colour samples to gve yo a better idea of how your kitchen will look.

There are already protocols proposed for quantum computing and communication which rely on this photon generation scheme, and this work can be extended to other single photon sources as well, such as single molecules, colour centres in diamond and nanowires.

Nowadays the most common sources of single photons are single molecules, diamond colour centres and quantum dots, with the last being widely studied with efforts from many research groups to realize quantum dots that fluoresce single photons at room temperature with photons in the low loss window of fiber-optic communication.

In most specimens, body scales have lightly colored centers with darker edges.

Color centers are largely responsible for the appearance of specific wavelengths of visible light all around us.

However, recent papers use this term meaning reversible creation of absorbing color centers in optical fibers.

The symptoms of the disease were large necrotic spots with water soaked outside borders and rust colored centers.

Television glass plates are subject to electron bombardment, which tends to darken them by creation of F-center color centers.

Residual electrons and X-rays darken the acrylic by introducing defects (color centers) in a process called solarization.

Color Centers in Solids.

These high-energy particles physically alter the diamond's crystal lattice, knocking carbon atoms out of place and producing color centers.

Europium(II)-doped alkaline earth aluminates degrade by formation of color centers.

Color centers (or dye molecules, or "dopants") in a dielectric absorb a portion of the incoming light wave.

Those vacancies produce green color centers in pure transparent diamond and yellow-green color in yellow diamonds.

The color of the fluorite is determined by factors including impurities, exposure to radiation, and the absence or voids of the color centers.

Its most important practical property is optical absorption, like in the color centers, which gives diamond green, or sometimes even green-blue color (in pure diamond).

It is believed that solarization is caused by the formation of internal defects, called color centers, which selectively absorb portions of the visible light spectrum.

Increase of absorption can be caused by formation of color centers by electrons in the conduction band, created by several neighboring excited ions.

Detection of a Few Metallo-Protein Molecules Using Color Centers in Nanodiamonds.

Vanadium oxide can be used to induce color centers in corundum to create simulated alexandrite jewelry, although alexandrite in nature is a chrysoberyl.

The size of individual chromophore molecules or photoactive color centers is much smaller than the size of the laser focus (which is determined by the diffraction limit).

Through laser pump and signal absorption, and energy transfer from ytterbium; thulium is able to emit UV light, known to create color centers in silica glass.

The end result was a series of circular clear discs with colored centers, symbolizing the eight planets of the Solar System inside, and denominations ranging from 1 to 10.

Also not restricted to type are green diamonds, whose color is caused by GR1 color centers in the crystal lattice produced by exposure to varying quantities of radiation.

In geological settings, the development of pink, red, and purple zircon occurs after 100's of millions of years provided the crystal has sufficient trace elements to produce color centers.

This phenomenon is based on the isomerization between two different molecular structures, light-induced formation of color centers in crystals, precipitation of metal particles in a glass, or other mechanisms.

Color in glass may be obtained by addition of electrically charged ions (or color centers) that are homogeneously distributed, and by precipitation of finely dispersed particles (such as in photochromic glasses).

Absorption saturation, which results in decreased absorption at high incident light intensity, competes with other mechanisms (for example, increase in temperature, formation of color centers, etc.), which result in increased absorption.