Direct observation of topological edge states in silicon photonic crystals

Nikhil Parappurath*, Filippo Alpeggiani, L. Kuipers, Ewold Verhagen

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review


We directly observe the states of topological photonic crystals at telecom wavelengths. Using the states’ intrinsic radiation, we measure dispersion, loss, pseudospin, and spin-spin scattering. We image spin-selective unidirectional propagation around sharp corners and junctions.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationApplications and Technology, CLEO_AT 2019
EditorsPeter Andersen, Michael M. Mielke
PublisherOSA - The Optical Society
VolumePart F127-CLEO_AT 2019
ISBN (Electronic)978-155752820-9
ISBN (Print)978-194358057-6
Publication statusPublished - 2019
EventCLEO: Applications and Technology, CLEO_AT 2019 - San Jose, United States
Duration: 5 May 201910 May 2019

Publication series

NameOptics InfoBase Conference Papers
VolumePart F127-CLEO_AT 2019
ISSN (Electronic)2162-2701


ConferenceCLEO: Applications and Technology, CLEO_AT 2019
Country/TerritoryUnited States
CitySan Jose


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