Ordinary solid-state lasers, as used in laser pointers, generate light in the visible range. For many applications, however, such as the detection of molecules, radiation in the mid-infrared range is needed. Such infrared ...
Optics & Photonics
Nov 23, 2020
0
942
Our eyes are sensitive to only three spectral color bands (red, green, blue), and people can no longer distinguish colors if it becomes very dark. Spectroscopists can identify many more colors by the frequencies of the light ...
Optics & Photonics
Oct 20, 2020
1
1164
Researchers have developed a new approach that uses a single laser cavity to create two high-power optical frequency combs emitting high-power femtosecond pulses. The new development paves the way for portable dual-comb light ...
Optics & Photonics
Oct 15, 2020
0
129
Researchers at the National Institute of Standards and Technology (NIST) and the University of Maryland have developed a microchip technology that can convert invisible near-infrared laser light into any one of a panoply ...
Optics & Photonics
Oct 14, 2020
0
56
Researchers at Institut national de la recherche scientifique (INRS) have discovered a cost-effective way to tune the spectrum of a laser to the infrared, a band of great interest for many laser applications. They collaborated ...
Optics & Photonics
Oct 14, 2020
0
13
Just as a meter stick with hundreds of tick marks can be used to measure distances with great precision, a device known as a laser frequency comb, with its hundreds of evenly spaced, sharply defined frequencies, can be used ...
Optics & Photonics
Jun 22, 2020
0
1041
We've all experienced turbulent air and water, but did you know light can be turbulent too?
Optics & Photonics
Jun 17, 2020
4
272
Many emerging technologies rely on high-quality lasers. Laser-based LiDAR sensors can provide highly accurate scans of three-dimensional spaces, and as such are crucial in applications ranging from autonomous vehicles to ...
Optics & Photonics
May 7, 2020
0
84
In conventional sensing methods, noise is always a problem, especially in systems that are meant to detect changes in their environment that are hardly bigger or even smaller than the noise in the system. Encountering this ...
Optics & Photonics
Feb 14, 2020
0
1327
JILA physicists and collaborators have demonstrated the first next-generation "time scale"—a system that incorporates data from multiple atomic clocks to produce a single highly accurate timekeeping signal for distribution. ...
Quantum Physics
Oct 21, 2019
0
36
