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Thermally Controllable Silicon Photonic Crystal Nanobeam Cavity without Surface Cladding for Sensing Applications

Fegadolli, William S. and Pavarelli, Nicola and O’Brien, Peter and Njoroge, Samuel and Almeida, Vilson R. and Scherer, Axel (2015) Thermally Controllable Silicon Photonic Crystal Nanobeam Cavity without Surface Cladding for Sensing Applications. ACS Photonics, 2 (4). pp. 470-474. ISSN 2330-4022. http://resolver.caltech.edu/CaltechAUTHORS:20150331-135941953

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Abstract

Photonic crystal nanobeam cavities with high-quality factors are very sensitive to the dielectric properties of their surroundings. Combining this high sensitivity with a specially designed heater, we experimentally demonstrate a very sensitive optical sensor, capable of simultaneously providing heat and interrogating the refractive index of its surroundings. The structure presents experimental sensitivity of 98 nm/RIU and signal-to-noise ratio of 3.88 × 10^(–4) RIU and provides approximately 100 °C of temperature variation in the sensing area, with a temperature switching time of a few microseconds.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/ph5004863DOIArticle
http://pubs.acs.org/doi/abs/10.1021/ph5004863PublisherArticle
Additional Information:© 2015 American Chemical Society. Received: December 28, 2014. Publication Date (Web): March 23, 2015. W.S.F., S.N., and A.S. thank the NSF CIAN ERC (Grant EEC-0812072), Sanofi S. A., and the Gates Foundation for the financial support. V.R.A. thanks CNPq for Grants 483116/2011-4 and 312029/2013-6 and CAPES for the PVS-ITA Grant. N.P. and P.O’B. thank the Irish Photonics Integration Centre (www.ipic.ie) under Science Foundation Ireland (Grant No. 12/RC/2276).
Funders:
Funding AgencyGrant Number
NSFEEC-0812072
Sanofi S. A.UNSPECIFIED
Bill and Melinda Gates FoundationUNSPECIFIED
Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq)483116/2011-4
Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq)312029/2013-6
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UNSPECIFIED
Science Foundation, Ireland12/RC/2276
Record Number:CaltechAUTHORS:20150331-135941953
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150331-135941953
Official Citation:Thermally Controllable Silicon Photonic Crystal Nanobeam Cavity without Surface Cladding for Sensing Applications William S. Fegadolli, Nicola Pavarelli, Peter O’Brien, Samuel Njoroge, Vilson R. Almeida, and Axel Scherer ACS Photonics 2015 2 (4), 470-474 DOI: 10.1021/ph5004863
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56250
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:31 Mar 2015 23:34
Last Modified:15 May 2015 18:45

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