crystal

A dynamic fractal discovered in a clean magnetic crystal

A dynamic fractal discovered in a clean magnetic crystal

Example of fractal structures in spin ice with a famous fractal example (the Mandelbrot set), above a photograph of water ice. Credit: Jonathan N. Hallén, Cavendish Laboratory, University of Cambridge The nature and properties of the materials are strongly dependent on the dimension. Imagine how different life in a one-dimensional or two-dimensional world would be …

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Whispering gallery modes with fractional optical angular momentum in photonic crystal micro-rings

Whispering gallery modes with fractional optical angular momentum in photonic crystal micro-rings

The left side represents the concept of half-integer angular momentum in the author’s work. The electric field inside the resonator (middle) depends on both the field envelope phase (top) and the angular momentum phase (bottom), each requiring two round trips to return to its original value. A light-carrying half-integer angular momentum can be created by …

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