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Photonic topological phases are classical electromagnetic wave analogues of electronic topological phases studied in condensed matter physics. Similar to their electronic counterparts, they, can provide robust unidirectional channels for light propagation. [2] The field that studies these phases of light is referred to as topological photonics.
A topological insulator is a material whose interior behaves as an ... it was observed that Bi 1 − x Sb x alloy exhibits an ... Photonic topological insulator;
The topological insulators and superconductors are classified here in ten symmetry classes (A,AII,AI,BDI,D,DIII,AII,CII,C,CI) named after Altland–Zirnbauer classification, defined here by the properties of the system with respect to three operators: the time-reversal operator , charge conjugation and chiral symmetry . The symmetry classes are ...
Pages in category "Photonics" The following 109 pages are in this category, out of 109 total. ... Photonic radar; Photonic topological insulator; Photonic-crystal ...
In 2012, Joseph Orenstein published an article in Physics Today about "ultrafast spectroscopy of quantum materials". [4] Orenstein stated, Quantum materials is a label that has come to signify the area of condensed-matter physics formerly known as strongly correlated electronic systems.
Indium gallium arsenide phosphide (Ga x In 1−x As y P 1−y) is a quaternary compound semiconductor material, an alloy of gallium arsenide, gallium phosphide, indium arsenide, or indium phosphide. This compound has applications in photonic devices, due to the ability to tailor its band gap via changes in the alloy mole ratios, x and y.
A photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz , infrared (IR) or visible wavelengths. [1]
A two-dimensional magnetic skyrmion, as a topological object, is formed, e.g., from a 3D effective-spin "hedgehog" (in the field of micromagnetics: out of a so-called "Bloch point" singularity of homotopy degree +1) by a stereographic projection, whereby the positive north-pole spin is mapped onto a far-off edge circle of a 2D-disk, while the ...