As a renewable resource, biomass presents an appealing alternative to fossil fuels for energy production. Burning plants, however, is not a completely clean process; it produces emissions that vary depending on the species ...
Environment
Oct 16, 2019
0
12
Tohoku University researchers have developed a technique using a hollow sphere to measure the electronic and optical properties of large semiconducting crystals. The approach, published in the journal Applied Physics Express, ...
General Physics
Jun 7, 2019
0
7
A small lab-grown diamond measuring a few millimeters per side could one day enable civilian drones to be recharged in mid-flight through a laser. Thanks to the diamond, the laser beam can remain strong enough over a long ...
Engineering
Nov 7, 2018
3
36
Spectrometers—devices that distinguish different wavelengths of light and are used to determine the chemical composition of everything from laboratory materials to distant stars—are large devices with six-figure price ...
Analytical Chemistry
Oct 23, 2018
0
360
After three scientists won the Nobel Physics Prize on Tuesday for groundbreaking discoveries harnessing the power of lasers, here are a few basic facts about their research.
Optics & Photonics
Oct 2, 2018
0
50
Synaptics today announced an industry-first family of Natural ID biometric authentication solutions that leverage high-performance, highly secure optical-based fingerprint sensors for smartphones and tablets. The new Synaptics ...
Hardware
Dec 14, 2016
0
5
Structural health monitoring systems traditionally use piezoelectric transducers—a device which converts pressure to electric voltage. These transducers normally have excellent reliability except in cases of corrosive environments ...
Optics & Photonics
Sep 16, 2016
0
24
Researchers have demonstrated, for the first time, that laser light can be used to manipulate a glass optical fiber tapered to a sharp point smaller than a speck of dust, in the middle of an optical fiber with a hollow core. ...
Optics & Photonics
Mar 8, 2016
2
56
Precise measurements of optical power enable activities from fiber-optic communications to laser manufacturing and biomedical imaging—anything requiring a reliable source of light. This situation calls for light-measuring ...
Optics & Photonics
Nov 5, 2015
0
95
Frequency combs are the rulers of light. By counting a wavelength's many oscillations, they measure distance and time with extraordinary precision and speed.
General Physics
Feb 17, 2015
0
18
