Researchers at Columbia Engineering report today that they have developed the first nanomaterial that demonstrates "photon avalanching," a process that is unrivaled in its combination of extreme nonlinear optical behavior ...
Nanophysics
Jan 13, 2021
3
3858
(Phys.org) —A dye-based imaging technique known as two-photon microscopy can produce pictures of active neural structures in much finer detail than functional magnetic resonance imaging, or fMRI, but it requires powerful ...
Bio & Medicine
Apr 21, 2013
2
0
The creation of a new quasiparticle called the "hybrid plasmon polariton" may throw open the doors to integrated photonic circuits and optical computing for the 21st century. Researchers with the U.S. Department of Energy ...
Optics & Photonics
May 31, 2011
1
0
Absorption spectroscopy is an analytical chemistry tool that can determine if a particular substance is present in a sample by measuring the intensity of the light absorbed as a function of wavelength. Measuring the absorbance ...
Optics & Photonics
Oct 11, 2023
0
133
A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication applications. A Los Alamos ...
Optics & Photonics
Aug 24, 2023
0
221
Single photons have applications in quantum computation, information networks, and sensors, and these can be emitted by defects in the atomically thin insulator hexagonal boron nitride (hBN). Missing nitrogen atoms have been ...
Nanophysics
Jun 14, 2023
0
13
Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have designed a framework that allows scientists to observe interactions between light and electrons using a traditional scanning electron microscope. ...
Optics & Photonics
Jun 7, 2022
0
169
Liquid crystals derived from borophene have risen in popularity, owing to their applicability in optoelectronic and photonic devices. However, their development requires a very narrow temperature range, which hinders their ...
Polymers
Feb 24, 2022
0
56
Physicists at Bielefeld University and the Arctic University of Norway in Tromsø have developed a photonic chip that makes it possible to carry out super-resolution light microscopy, also called 'nanoscopy,' with conventional ...
Optics & Photonics
Apr 24, 2017
0
50
Anyone who has taken a photo in a poorly lit restaurant or dim concert venue knows all too well the grainy, fuzzy outcomes of low-light imaging. Scientists trying to take images of biological specimens encounter the same ...
Optics & Photonics
Sep 27, 2016
1
864
