Advances in knowledge of the relations between the optical properties and chemical composition of crystals, especially those affecting the amphibole group, have been incorporated in the text.

Mineralogy is the study of minerals, the building blocks of rocks, which are naturally-occurring, crystalline solids with a set chemical make-up. This includes the study of the chemical ...

There are legacy options you may be more familiar with, like a digital optical or TosLink cable, but the same HDMI cable that you use to connect your OLED, QLED, or LED-powered screen to your ...

In photonic chips, information can be encoded in optical properties like polarization, phase, magnitude, frequency, and wavevector. While this would be extremely fast and energy-efficient ...

Our lens reviews offer detailed information on sharpness, distortion, bokeh, and all the other important factors that go into making a lens great. Our reviews give you all the information you need ...

Jan. 15, 2025 — Astronomers have detected an intensely brightening and dimming quasar that may help explain how some objects in the early universe grew at a highly accelerated rate. The ...

SPOKANE, Wash. -- A local optical shop is changing up its business model to meet customers wherever they may be. Stahl Optical near 5th Avenue and Chandler Street on Spokane's South Hill is ...

This not only increases costs but also raises concerns about sustainability and resource efficiency. For that reason, the direct epitaxial growth of high-quality III-V optical gain materials ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Executive Editor David ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Optic neuritis (ON) is an inflammation that damages your optic nerve. It can cause vision loss and pain when you move your eyes. As the inflammation goes away, your symptoms usually get better ...