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https://doi.org/10.1021/nn304860t
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dc.title | Ultrasensitive broadband probing of molecular vibrational modes with multifrequency optical antennas | |
dc.contributor.author | Aouani, H. | |
dc.contributor.author | Šípová, H. | |
dc.contributor.author | Rahmani, M. | |
dc.contributor.author | Navarro-Cia, M. | |
dc.contributor.author | Hegnerová, K. | |
dc.contributor.author | Homola, J. | |
dc.contributor.author | Hong, M. | |
dc.contributor.author | Maier, S.A. | |
dc.date.accessioned | 2014-10-07T04:38:58Z | |
dc.date.available | 2014-10-07T04:38:58Z | |
dc.date.issued | 2013-01-22 | |
dc.identifier.citation | Aouani, H., Šípová, H., Rahmani, M., Navarro-Cia, M., Hegnerová, K., Homola, J., Hong, M., Maier, S.A. (2013-01-22). Ultrasensitive broadband probing of molecular vibrational modes with multifrequency optical antennas. ACS Nano 7 (1) : 669-675. ScholarBank@NUS Repository. https://doi.org/10.1021/nn304860t | |
dc.identifier.issn | 19360851 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/83242 | |
dc.description.abstract | Optical antennas represent an enabling technology for enhancing the detection of molecular vibrational signatures at low concentrations and probing the chemical composition of a sample in order to identify target molecules. However, efficiently detecting different vibrational modes to determine the presence (or the absence) of a molecular species requires a multispectral interrogation in a window of several micrometers, as many molecules present informative fingerprint spectra in the mid-infrared between 2.5 and 10 μm. As most nanoantennas exhibit a narrow-band response because of their dipolar nature, they are not suitable for such applications. Here, we propose the use of multifrequency optical antennas designed for operating with a bandwidth of several octaves. We demonstrate that surface-enhanced infrared absorption gains in the order of 105 can be easily obtained in a spectral window of 3 μm with attomolar concentrations of molecules, providing new opportunities for ultrasensitive broadband detection of molecular species via vibrational spectroscopy techniques. © 2012 American Chemical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/nn304860t | |
dc.source | Scopus | |
dc.subject | broadband optical antenna | |
dc.subject | field enhancement | |
dc.subject | nanoantenna | |
dc.subject | plasmonic | |
dc.subject | SEIRA | |
dc.subject | vibrational spectroscopy | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.description.doi | 10.1021/nn304860t | |
dc.description.sourcetitle | ACS Nano | |
dc.description.volume | 7 | |
dc.description.issue | 1 | |
dc.description.page | 669-675 | |
dc.identifier.isiut | 000314082800071 | |
Appears in Collections: | Staff Publications |
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