Sensitivities of InGaAsP photonic crystal membrane nanocavities to hole refractive index
Date
2010-03-01
Authors
Dündar, Mehmet A
Ryckebosch, Els C I
Nötzel, Richard
Karouta, Fouad
van Ijzendoorn, Leo J
van der Heijden, Rob W.
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Abstract
The sensitivities of resonant wavelengths of photonic crystal (PhC) membrane nanocavities with embedded InAs quantum dots to the ambient refractive index are reported for use in (bio) chemical sensing. The resonances for the different modes of several point-defect type cavities are obtained by photoluminescence measurements. Systematic trends of the variation of sensitivity with increase of the overlap of the modes with the PhC holes are observed for varying cavity type as well as for a given mode within a cavity type. A maximum sensitivity of approximately 300 nm/RIU (refractive index unit) is observed, corresponding to approximately 25% mode overlap with the holes and complete infiltration with the aqueous solution.
Description
Keywords
arsenicals, crystallization, gallium, indium, luminescent measurements, nanostructures, phosphorus compounds, membranes, artificial, photons, refractometry
Citation
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Source
Optics express
Type
Journal article
Book Title
Entity type
Access Statement
Open Access