Change search
ReferencesLink to record
Permanent link

Direct link
High-sensitivity liquid refractive-index sensor based on a Mach-Zehnder interferometer with a double-slot hybrid plasmonic waveguide
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.ORCID iD: 0000-0003-3618-6049
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.ORCID iD: 0000-0001-5967-2651
2015 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 23, no 20, 25688-25699 p.Article in journal (Refereed) PublishedText
Abstract [en]

A Mach-Zehnder Interferometer (MZI) liquid sensor, employing ultra-compact double-slot hybrid plasmonic (DSHP) waveguide as active sensing arm, is developed. Numerical results show that extremely large optical confinement factor of the tested analytes (as high as 88%) can be obtained by DSHP waveguide with optimized geometrical parameters, which is larger than both, conventional SOI waveguides and plasmonic slot waveguides with same widths. As for MZI sensor with 40 mu m long DSHP active sensing area, the sensitivity can reach as high value as 1061nm/RIU (refractive index unit). The total loss, excluding the coupling loss of the grating coupler, is around 4.5dB.

Place, publisher, year, edition, pages
Optical Society of America, 2015. Vol. 23, no 20, 25688-25699 p.
Keyword [en]
Silicon-On-Insulator, Resonators
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-179177DOI: 10.1364/OE.23.025688ISI: 000365077900026PubMedID: 26480084ScopusID: 2-s2.0-84943781741OAI: oai:DiVA.org:kth-179177DiVA: diva2:882183
Note

QC 20151214

Available from: 2015-12-14 Created: 2015-12-11 Last updated: 2015-12-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Sun, XuThylen, LarsWosinski, Lech
By organisation
Optics and Photonics, OFO
In the same journal
Optics Express
Atom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link