A new technique makes it possible to obtain an individual fingerprint of the current-carrying edge states occurring in novel materials such as topological insulators or 2-D materials. Physicists of the University of Basel ...
Nanophysics
Sep 12, 2018
0
101
Electrically pumped semiconductor lasers are among the most important sources, owing to their high efficiency, compactness, and solid-state stability. For mid-infrared and terahertz radiation, quantum cascade lasers (QCLs) ...
Optics & Photonics
Jun 20, 2023
0
3
In topological insulators, global geometric phases of energy bands determine the existence of unidirectionally propagating edge states, which are immune to local defects, bringing a new stage for designing noise-resilient ...
Optics & Photonics
Oct 12, 2022
0
21
A team of researchers from Tohoku University, J-PARC, and Tokyo Institute of Technology conducted an in-depth study of magnetic quasiparticles called "triplons." The team conducted the study with a low-dimensional quantum ...
Quantum Physics
Jun 26, 2019
0
0
Topological insulators, whose bulky states are prohibited while surface/edge states are conductive and topologically protected. Recent advances in topologically protected edge states have drawn growing attention in the optics ...
Optics & Photonics
May 31, 2022
0
11
An international scientific team has developed a new method of probing topological structures and their topological phase transitions. The method is based on examining the reflection spectrum of electromagnetic waves reflecting ...
General Physics
Mar 29, 2018
0
13
In a recent article published in Physical Review Letters a research collaborative has reported new insights into the electronic conduction and interference on 2-D topological insulators—an exotic kind of insulator that ...
General Physics
Dec 4, 2017
0
6
The ability to control fine-scale acoustic waves known as phonons could lead to new sensing and surgery technologies, or even materials that are invisible to sonar. This pursuit led researchers at King Abdullah University ...
General Physics
Oct 7, 2016
1
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