The topological insulator laser alters current understanding of the interplay between disorder and lasing, and at the same time opens exciting possibilities in topological physics, such as topologically protected transport in systems with gain.
On the technological side, the topological insulator laser provides a route to arrays of semiconductor lasers that operate as one single-mode high-power laser coupled efficiently into an output port. All Science Journal Classification (ASJC) codes
Its topological properties give rise to single-mode lasing, robustness against defects, and considerably higher slope efficiencies compared to the topologically trivial counterparts. Here we demonstrate a nonmagnetic topological insulator laser system exhibiting topologically protected transport in the cavity. Its topological properties give rise to single-mode lasing, robustness against defects, and considerably higher slope efficiencies compared to the topologically trivial counterparts. Here, we proposed the topological insulator laser: a photonic topological insulator that lases.
av R Zetter · 2016 — electrical insulator that the Cooper pairs of the superconductor can quantum tunnel photons from the resonant pump laser transferring their angular momentum to the PPE only elucidates the topological aspects of the PSFs, the correlation Laser and camera setup at the optical engine. overlapping. laser planes. mirrors,.
laser based light source; topological insulator; topological crystalline insulator; thin films; A new generation of superluminous X-ray free-electron lasers (XFEL) like Fe based superconductors and topological insulators along with Dilute Nitride Nanowire Lasers Based on a GaAs/GaNAs Core/Shell spin texture in a 3D topological insulator2020Ingår i: Scientific Reports, ISSN 2045-2322, Work on nanowire lasers, ferroelectric memory devices, and "the Quantum Hall effect and topological insulators" are among the research Structural phase transition in monolayer gold(I) telluride: From a room-temperature topological insulator to an auxetic semiconductor2021Ingår i: Physical Highly tunable magnetic coupling in ultrathin topological insulator films due to impurity resonances2020In: Physical Review B, ISSN 2469-9950, E-ISSN Nyckelord :Topological insulator; Band structure; Block tridiagonal matrix; at low temperatures by laser beams, simulate systems which can be adequately A new generation of superluminous X-ray free-electron lasers (XFEL) like Fe based superconductors and topological insulators along with Both the X-ray beam (blue) and the laser beam (red) travel a similar pathway (in-vacuum) based topological insulators, Physical Review B 86. (2012), 045439. case studies, such as optical modes in gold tapers probed by electron beams and investigations of optical excitations in the topological insulator Bi2Se3.
15 Feb 2018 The results of the “nonmagnetic topological insulator laser” are presented in two research papers in Science, one describing the theory of
Two models, a topological insulators) and chemically/physically modified surfaces thereof. and beam diagnostic methods for Free Electron Lasers, A. Lindblad (Author, Ed.) Information om A Short Course on Topological Insulators : Band Structure and Edge States in One and Progress in Ultrafast Intense Laser Science : Volume V. University of Nottingham Laser-like instabilities in nanoelectromechanical systems Stanford Photo emission studies of topological insulators.
During 2014 we have commissioned a direct-write laser Topological Insulator Bi2Te3 on GaN" (5th International Workshop on Bismuth.
Schematic of one module of the topological insulator laser in synthetic dimensions.
Recently, researchers developed a topological laser device with promising power efficiency and robustness to fabrication faults. Here, for the first time, we theoretically study the coherence properties of this class of devices and show that the new laser’s coherence can compete with traditional ones and that the device displays improved resilience to the defects of the optical lattice. We propose a system that exploits the fundamental features of topological photonics and synthetic dimensions to force many semiconductor laser resonators to synchronize, mutually lock, and under suitable modulation emit a train of transform-limited mode-locked pulses. These lasers exploit the Floquet topological edge states in a 1D array of ring resonators, which corresponds to a 2D
Topological insulators (TIs), are novel two-dimension materials, which can act as effective saturable absorbers (SAs) in a fiber laser.
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A topological insulator is an extraordinary material - it acts as an electrical bulk insulator that allows an electrical current flow along its surface. The surface current is topologically protected from a defect or scatterer. On the technological side, the topological insulator laser provides a route to arrays of semiconductor lasers that operate as one single-mode high-power laser coupled efficiently into an output port. AB - Topological insulators are phases of matter characterized by topological edge States that propagate in a unidirectional manner that is robust to imperfections and disorder. Scientists and engineers have created the first electrically-driven 'topological' laser, which has the ability to route light particles around corners -- and to cope with defects in the Studies on three dimensional topological insulators (TIs) such as Bi 2 Te 3, Bi 2 Se 3, and Sb 2 Te 3 over the past decade have been intense due to their unique physical properties and potential applications for spintronics and quantum computing.
In the topological-insulator laser demonstrated by the Technion-CREOL team, laser light goes around the perimeter unobstructed by sharp corners or other local disorder, and eventually exits through the output port. [Image: S. Wittek (CREOL) and M.A. Bandres (Technion)]
Here we propose an all-dielectric topological insulator laser scheme in the telecommunication region based on semiconductor cavities formed by topologically distinct Kagome photonic crystals. We demonstrate a nonmagnetic topological insulator laser exhibiting topologically-protected transport.
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Topological insulators (TIs), are novel two-dimension materials, which can act as effective saturable absorbers (SAs) in a fiber laser. Moreover, based on the evanescent wave interaction, deposition of the TI on microfiber would create an effective SA, which has combined advantages from the strong nonlinear optical response in TI material together with the sufficiently-long-range interaction
J. Appl. Phys. 117, 063108 (2015). [Google Scholar] Wang Q. et al.