Phase spectroscopy of topological invariants in photonic crystals
نویسندگان
چکیده
A. V. Poshakinskiy,1,* A. N. Poddubny,1 and M. Hafezi2,3 1Ioffe Institute, St. Petersburg 194021, Russia 2Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA 3Department of Electrical Engineering and Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA (Received 29 January 2015; published 20 April 2015)
منابع مشابه
Phase Properties of One-Dimensional Quaternary Photonic Crystals
In this paper, properties of reflection phase in one-dimensional quaternary photonic crystals combining dispersive meta-materials and positive index materials are investigated by transfer matrix method. Two omnidirectional band gaps are located in the band structure of considered structure. However, we limit our studies to the frequency range of the second wide band gap. We observe that the val...
متن کاملTopological orders in Silicon photonics
Topological features – global properties which are not discernible locally – have attracted tremendous research attention in many fields of physics, ranging from condensed matter to ultra cold gases. Recently, photonic systems have been under investigation to explore various types of topological orders and to potentially develop robust optical devices. In this project, we investigated various a...
متن کاملLow Delay Time All Optical NAND, XNOR and OR Logic Gates Based on 2D Photonic Crystal Structure
Background and Objectives: Recently, photonic crystals have been considered as the basic structures for the realization of various optical devices for high speed optical communication. Methods: In this research, two dimensional photonic crystals are used for designing all optical logic gates. A photonic crystal structure with a triangular lattice is proposed for making NAND, XNOR, and OR optica...
متن کاملInfluence of optical Kerr coefficient on photonic band structures of hexagonal-lattice function photonic crystals
In this paper, we have studied the photonic band structure of function photonic crystals in which the dielectric constant of the scattering centers (rods) is a function of space coordinates. The under-studied lattice is hexagonal and cross section of rods has a circular symmetry embedded in the air background. Photonic band structures for both electric and magnetic polarizations of the electrom...
متن کاملDislocation parity effects in crystals with quadratic nonlinear response.
The effect of edge topological dislocations on the phase matching spectrum of quadratic nonlinear photonic crystals was studied theoretically and experimentally. We have found that the parity of the dislocation's topological charge governs the transfer of energy between an input wave and its second harmonic. A dislocation with an odd topological charge nulls the efficiency of the otherwise opti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015