Configurable silicon photonic crystal waveguides

Journal
Applied physics letters  
Volume
103
Issue
26
Article Number
261112
Citation
Applied Physics Letters 26 (103): 261112 (2013)
Publisher DOI
10.1063/1.4852178
Scopus ID
2-s2.0-84891594832
Publisher
American Institute of Physics
In this Letter, we demonstrate that the mode cut off of a photonic crystal waveguide can be trimmed with high accuracy by electron beam bleaching of a chromophore doped polymer cladding. Using this method, configurable waveguides are realized, which allow for spatially resolved changes of the photonic crystal's effective lattice constant as small as 7.6 pm. We show three different examples how to take advantage of configurable photonic crystal waveguides: Shifting of the complete transmission spectrum, definition of cavities with high quality factor, and tuning of existing cavities. © 2013 AIP Publishing LLC.
DDC Class
530: Physik
600: Technik
620: Ingenieurwissenschaften
More Funding Information
Deutsche Forschungsgemeinschaft (DFG)