Imperial College London
Portrait Picture

ProfessorAlexeiKornyshev

Faculty of Natural Sciences, Department of Chemistry

Professor of Chemical Physics
 
 
 
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Contact

 

+44 (0)20 7594 5786a.kornyshev Website CV

 
 
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Assistant

 

Mr John Murrell +44 (0)20 7594 2845

 
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Location

 

110Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sikdar:2019:10.1515/nanoph-2019-0317,
author = {Sikdar, D and Kornyshev, A},
doi = {10.1515/nanoph-2019-0317},
journal = {Nanophotonics},
pages = {2279--2290},
title = {An electro-tunable Fabry–Perot interferometer based on dual mirror-on-mirror nanoplasmonic metamaterials},
url = {http://dx.doi.org/10.1515/nanoph-2019-0317},
volume = {8},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Mirror-on-mirror nanoplasmonic metamaterials, formed based on voltage-controlled reversible selfassembly of sub-wavelength-sized, metallic nanoparticles (NPs) on thin metallic-film electrodes, are promisingcandidates for novel electro-tunable optical devices. Here, we present a new design of electro-tunable Fabry–Perotinterferometers (FPI), in which two parallel mirrors — each composed of a monolayer of NPs self-assembled on athin metallic electrode — form an optical cavity, which is filled with aqueous solution. The reflectivity of the cavitymirrors can be electrically adjusted, simultaneously or separately, via a small variation of electrode potentials thatwould alter the inter-NP separation in the monolayers. To investigate optical transmittance from the proposed FPIdevice we develop a nine-layer-stack theoretical model, based on our effective medium theory and multi-layer Fresnelreflection scheme, which produces excellent match when verified against full-wave simulations. We show that strongplasmonic coupling among silver NPs forming monolayer on a thin silver-film substrate makes reflectivity of eachcavity-mirror highly sensitive to the inter-NP separation. Such a design allows continuous tuning of the multiple,narrow and intense transmission peaks emerging from an FPI cavity via electrotuning the inter-NP separation in-situ— reaping the benefits from both inexpensive bottom-up fabrication and energy efficiency of tuning.
AU  - Sikdar,D
AU  - Kornyshev,A
DO  - 10.1515/nanoph-2019-0317
EP  - 2290
PY  - 2019///
SN  - 2192-8606
SP  - 2279
TI  - An electro-tunable Fabry–Perot interferometer based on dual mirror-on-mirror nanoplasmonic metamaterials
T2  - Nanophotonics
UR  - http://dx.doi.org/10.1515/nanoph-2019-0317
UR  - http://hdl.handle.net/10044/1/74382
VL  - 8
ER  -
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