Fluorescence microscopy is widely used in biochemistry and life sciences because it allows scientists to directly observe cells and certain compounds in and around them. Fluorescent molecules absorb light within a specific ...
Optics & Photonics
Jan 04, 2021
0
86
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 have developed an advanced spectrometer that can acquire data with exceptionally high speed. The new spectrometer could be useful for a variety of applications including remote sensing, real-time biological imaging ...
Optics & Photonics
Sep 16, 2020
0
727
Frequency combs are becoming one of the great enabling technologies of the 21st century. High-precision atomic clocks, and high-precision spectroscopy are just two technologies that have benefited from the development of ...
Optics & Photonics
Jul 23, 2020
0
94
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
Xu Yi, assistant professor of electrical and computer engineering at the University of Virginia, collaborated with Yun-Feng Xiao's group from Peking University and researchers at Caltech to achieve the broadest recorded spectral ...
Optics & Photonics
May 22, 2020
0
352
Researchers at the National Institute of Standards and Technology (NIST) have used state-of-the-art atomic clocks, advanced light detectors, and a measurement tool called a frequency comb to boost the stability of microwave ...
Optics & Photonics
May 21, 2020
3
1504
