While conventional photodetectors can only measure light intensity, the light field contains much richer information. This information includes but is not limited to phase, polarization, and spectrum.

Figure 1: Sculpturing light by digital control. A new publication from Opto-Electronic Science; DOI 10.29026/oes.2023.230026 overviews liquid crystal spatial light modulators devices and applications.

“Everything is born out of nothing,” said Ivan Smalyukh, a physicist at the University of Colorado Boulder. “All you do is shine a light, and this whole world of time crystals emerges.”. In a paper in ...

Spontaneous parametric down-conversion (SPDC), as a source of entangled photons, is of great interest for quantum physics and quantum technology, but so far it could be only implemented in solids.

People with photosensitive epilepsy could soon be able to watch TV without worry. Scientists in the UK have created glasses that can block out specific wavelengths of light known to cause seizures. It ...

More than 100 years after a pair of imaginative physicists first proposed a new phase of liquid crystal, scientists at the University of Colorado Boulder have managed to produce it and have been left ...

Any device that can control or change the amplitude, phase, or polarization of light waves is known as a Spatial Light Modulator (SLM). “Current SLM–based systems use either optical MEMS ...

Liquid crystal polarization gratings (LCPGs) are diffractive elements that provide near-100% diffraction for circularly polarized light. When layered with thin polarization-controlling liquid crystal ...

Scientists at Rice University found a new way to make liquid crystals from boron nitride nanotubes. Instead of using acids or polymers to disperse the nanotubes, they used a common surfactant and ...