dc.contributor.author | Liu, Yonghao | |
dc.contributor.author | Zhou, Weidong | |
dc.contributor.author | Sun, Yuze | |
dc.date.accessioned | 2017-10-09T22:15:37Z | |
dc.date.available | 2017-10-09T22:15:37Z | |
dc.date.issued | 2017-08-11 | |
dc.identifier.citation | Published in Sensors 17(8): 1-12, 2017 | en_US |
dc.identifier.uri | http://hdl.handle.net/10106/27015 | |
dc.description.abstract | High sensitivity (S) and high quality factor (Q) are desirable to achieve low detection limit in label-free optical sensors. In this paper, we theoretically demonstrate that single-layer and coupled bi-layer photonic crystal slabs (PCS) possess simultaneously high S and high Q near the bound states in the continuum (BIC). We theoretically achieved S > 800 nm/RIU and Q > 107 in refractive index sensing in the 1400–1600 nm telecom optical wavelength bands. We experimentally demonstrated an S of 94 nm/RIU and a Q of 1.2 x 104, with a detection limit of 6 X10 -5 refractive index unit. These sensor designs can find applications in biochemical sensing, environmental
monitoring, and healthcare. | en_US |
dc.description.sponsorship | This work was supported by US NSF under Grant No. ECCS-1407947 and US ARO W911NF-15-1-0431. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | MDPI | en_US |
dc.rights | Attribution 4.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/us/ | * |
dc.subject | Sensor designs -- optical | en_US |
dc.subject | Fano resonance | en_US |
dc.subject | Label-free sensor | en_US |
dc.title | Optical Refractive Index Sensing Based on High-Q Bound States in the Continuum in Free-Space Coupled Photonic Crystal Slabs | en_US |
dc.type | Article | en_US |
dc.publisher.department | Department of Electrical Engineering, The University of Texas at Arlington | en_US |
dc.identifier.externalLinkDescription | The original publication is available at Article DOI | en_US |
dc.creator.orcid | Sun, Yuze - orcid.org/0000-0001-5149-2277 | |
dc.identifier.doi | DOI:10.1038/s41598-017-10653-y | |