Human vision relies on light. After reflecting off surfaces, light enters into the eyes and travels through the cornea and pupil to produce an image on the retina. The eye is sensitive to a broad ...

An international collaboration of researchers developed two new complementary approaches for versatile but precise light intensity measurements in fluorescence imaging systems. Accurate measurements ...

Measuring the average intensity of the visible radiation emitted from an LED is a critical issue, not just for developers of electro-optical instrumentation and photonics measuring devices, but also ...

Spectrometers are exceptionally versatile instruments capable of measuring light intensity in terms of its component wavelengths (i.e. by color). Fiber-coupled, cost-effective spectrometers like the ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Researchers have developed a novel experimental platform to measure the electric fields of light trapped between two mirrors with a sub-cycle precision. These electro-optic Fabry-Perot resonators will ...

Green fluorescent proteins (GFPs) in eppendorf tubes glow green because they have absorbed exitation light. Credit: Juan Carlos Fonseca Mata Green fluorescent proteins (GFPs) in eppendorf tubes glow ...