Imperial College London
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Dr Aliaksandra Rakovich, AFHEA

Faculty of Natural Sciences, Department of Physics

Academic Visitor
 
 
 
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Contact

 

+44 (0)20 7594 6155a.rakovich Website CV

 
 
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Location

 

901bBlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Cambiasso:2017:10.1021/acs.nanolett.6b05026,
author = {Cambiasso, J and Grinblat, G and Li, Y and Rakovich, A and Cortes, E and Maier, SA},
doi = {10.1021/acs.nanolett.6b05026},
journal = {Nano Letters},
pages = {1219--1225},
title = {Bridging the gap between dielectric nanophotonics and the visible regime with effectively lossless gallium phosphide antennas},
url = {http://dx.doi.org/10.1021/acs.nanolett.6b05026},
volume = {17},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We present all-dielectric gallium phosphide (GaP) nanoantennas as an efficient nanophotonic platform for surface-enhanced second harmonic generation (SHG) and fluorescence (SEF), showing negligible losses in the visible range. Employing single GaP nanodisks, we observe an increase of more than 3 orders of magnitude in the SHG conversion signal in comparison with the bulk. This constitutes an SHG efficiency as large as 0.0002%, which is to the best of our knowledge the highest yet achieved value for a single nano-object in the optical region. Furthermore, we show that GaP dimers with 35 nm gap can enhance up to 3600 times the fluorescence emission of dyes located in the gap of the nanoantenna. This is accomplished by a fluorescence lifetime reduction of at least 22 times, accompanied by a high-intensity field confinement in the gap region. These results open new avenues for low-loss nanophotonics in the optical regime.
AU  - Cambiasso,J
AU  - Grinblat,G
AU  - Li,Y
AU  - Rakovich,A
AU  - Cortes,E
AU  - Maier,SA
DO  - 10.1021/acs.nanolett.6b05026
EP  - 1225
PY  - 2017///
SN  - 1530-6992
SP  - 1219
TI  - Bridging the gap between dielectric nanophotonics and the visible regime with effectively lossless gallium phosphide antennas
T2  - Nano Letters
UR  - http://dx.doi.org/10.1021/acs.nanolett.6b05026
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000393848800088&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/45460
VL  - 17
ER  -
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