Silicon subwavelength structures for communications and sensing (conference presentation)

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DOIResolve DOI: http://doi.org/10.1117/12.2267644.5471030924001
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TypePresentation
Proceedings titleIntegrated Photonics: Materials, Devices, and Applications IV
Series titleProceedings of SPIE; no. 10249
ConferenceSPIE Microtechnologies, 8-10 May 2017, Barcelona, Spain
ISSN0277-786X
1996-756X
AbstractSilicon sub-wavelength structures have found widespread applications in devices ranging from fiber-to-chip couplers to spectrometers. So far, these structures have been mainly used to engineer the local refractive index. Here we focus on two further applications. We describe how to engineer the waveguide electromagnetic field distribution for enhanced evanescent field sensing, predicting a 6-fold enhancement of the sensitivity compared to conventional waveguides. We furthermore report experimental results on broadband multimode interference couplers, which, by leveraging the inherent anisotropy of the sub-wavelength structures, achieve virtually perfect operation over a bandwidth of more than 300nm at telecom wavelengths.
Publication date
PublisherSociety of Photo-optical Instrumentation Engineers
LanguageEnglish
AffiliationInformation and Communication Technologies; National Research Council Canada
Peer reviewedYes
NPARC number23002221
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Record identifier19818a28-fdb5-4ffc-9fc3-9c4829decd3c
Record created2017-09-06
Record modified2017-09-13
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