Enhanced coupling between waveguides through randomness

A. Szameit, Mikael C. Rechtsman, M. Heinrich, F. Dreisow, R. Keil, S. Nolte, M. Segev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Amorphous systems possess various non-intuitive features, entirely based on their intrinsic random structure and absence of any long-range order [1]. One of their most striking properties is the existence of a gap in the spectrum of eigenstates despite the lack of Bragg scattering [2]. Recently, the concept of amorphous lattices exhibiting a band gap was introduced in optics, and demonstrated using a liquid-like arrangement of waveguides [3]. In our experiments of [3], we demonstrated an isolated defect state residing deep inside the gap. But how do defect states interact with one another? What is the nature of this interaction? Can defect states interact over great distances? To answer these questions, we present a comprehensive experimental and theoretical study on coupled defect states in an amorphous band-gap lattice, and find an enhancement of coupling arising from the random environment surrounding the defects.

Original languageEnglish (US)
Title of host publication2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
DOIs
StatePublished - Sep 6 2011
Event2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 - Munich, Germany
Duration: May 22 2011May 26 2011

Publication series

Name2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011

Other

Other2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
CountryGermany
CityMunich
Period5/22/115/26/11

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Szameit, A., Rechtsman, M. C., Heinrich, M., Dreisow, F., Keil, R., Nolte, S., & Segev, M. (2011). Enhanced coupling between waveguides through randomness. In 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 [5943164] (2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011). https://doi.org/10.1109/CLEOE.2011.5943164