The Department’s Professor Mike Adams explains: 'The research topic is "Injected Spin Lasers", that is lasers whose output polarisation is controlled by the injection of spin-polarised electrons. Polarisation is a property of waves that describes the orientation of their oscillations.
Circular polarisation of laser radiation means that the tip of the electric field vector, at a fixed point in space, describes a circle as time progresses. Circular polarisation is referred to as right or left, depending on the direction in which the electric field vector rotates. An electron has one of two types of spin: spin up or spin down. In a spin-injected laser, spin down electrons couple to right circularly polarised radiation, whilst spin up electrons couple to left circularly polarised radiation, thus allowing us to control the output polarisation of the laser.'
'This research comes within the general topic of "spintronics", which is the focus of major research worldwide aimed chiefly at using the spin of electrons to indicate the ones and zeros of binary computing, but there is little effort associated with spin-polarised light sources. This inter-disciplinary project is aimed at understanding the dynamics of spin lasers and covers advanced physics concepts such as chaos and instabilities, as well as optoelectronic components and sub-systems used in telecommunications engineering.'
EU Marie Curie Fellowships support the training and mobility of researchers, whilst promoting excellence in European research.
Victoria Bartholomew | alfa
Helmholtz International Fellow Award for Sarah Amalia Teichmann
20.01.2017 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
Scientist from Kiel University coordinates Million Euros Project in Inflammation Research
19.01.2017 | Christian-Albrechts-Universität zu Kiel
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences