Plasmonic Split-Trench Resonator for Trapping and Sensing

Daehan Yoo; Avijit Barik; Fernando De León-Pérez; Daniel A. Mohr; Matthew Pelton; Luis Martín-Moreno; Sang Hyun Oh

doi:10.1021/acsnano.0c10014

Plasmonic Split-Trench Resonator for Trapping and Sensing

Daehan Yoo, Avijit Barik, Fernando De León-Pérez, Daniel A. Mohr, Matthew Pelton, Luis Martín-Moreno, Sang Hyun Oh

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

On-chip integration of plasmonics and electronics can benefit a broad range of applications in biosensing, signal processing, and optoelectronics. A key requirement is a chip-scale manufacturing method. Here, we demonstrate a split-trench resonator platform that combines a high-quality-factor resonant plasmonic biosensor with radio frequency (RF) nanogap tweezers. The split-trench resonator can simultaneously serve as a dielectrophoretic trap and a nanoplasmonic sensor. Trapping is accomplished by applying an RF electrical bias across a 10 nm gap, thereby either attracting or repelling analytes. Trapped analytes are detected in a label-free manner using refractive-index sensing, enabled by interference between surface-plasmon standing waves in the trench and light transmitted through the gap. This active sample concentration mechanism enables detection of nanoparticles and proteins at a concentration as low as 10 pM. We can manufacture centimeter-long split-trench cavity resonators with high throughput via photolithography and atomic layer deposition, toward practical applications in biosensing, spectroscopy, and optoelectronics.

Original language	English (US)
Pages (from-to)	6669-6677
Number of pages	9
Journal	ACS nano
Volume	15
Issue number	4
DOIs	https://doi.org/10.1021/acsnano.0c10014
State	Published - Apr 27 2021

Bibliographical note

Funding Information:
D.Y., A.B., D.A.M., and S.-H.O. acknowledge support from the U.S. National Science Foundation (NSF ECCS 1809723 and ECCS 1809240). D.Y. and S.-H.O. acknowledge partial support provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR). F.d.L.P. and L.M.-M. acknowledge financial support from Spanish Ministry of Economy and Competitivity through projects MAT2017-88358-C3-1-R and MAT2017-88358-C3-2-R and the Aragón Government project Q-MAD. M.P. acknowledges support from the U.S. National Science Foundation (NSF DMR-1905135). S.-H.O. further acknowledges support from the Sanford P. Bordeau Endowed Chair at the University of Minnesota and the McKnight Foundation.

Publisher Copyright:
© 2021 American Chemical Society.

Keywords

Fano resonance
atomic layer lithography
dielectrophoresis
extraordinary optical transmission
plasmonics
trapping

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10.1021/acsnano.0c10014

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title = "Plasmonic Split-Trench Resonator for Trapping and Sensing",

abstract = "On-chip integration of plasmonics and electronics can benefit a broad range of applications in biosensing, signal processing, and optoelectronics. A key requirement is a chip-scale manufacturing method. Here, we demonstrate a split-trench resonator platform that combines a high-quality-factor resonant plasmonic biosensor with radio frequency (RF) nanogap tweezers. The split-trench resonator can simultaneously serve as a dielectrophoretic trap and a nanoplasmonic sensor. Trapping is accomplished by applying an RF electrical bias across a 10 nm gap, thereby either attracting or repelling analytes. Trapped analytes are detected in a label-free manner using refractive-index sensing, enabled by interference between surface-plasmon standing waves in the trench and light transmitted through the gap. This active sample concentration mechanism enables detection of nanoparticles and proteins at a concentration as low as 10 pM. We can manufacture centimeter-long split-trench cavity resonators with high throughput via photolithography and atomic layer deposition, toward practical applications in biosensing, spectroscopy, and optoelectronics.",

keywords = "Fano resonance, atomic layer lithography, dielectrophoresis, extraordinary optical transmission, plasmonics, trapping",

author = "Daehan Yoo and Avijit Barik and {De Le{\'o}n-P{\'e}rez}, Fernando and Mohr, {Daniel A.} and Matthew Pelton and Luis Mart{\'i}n-Moreno and Oh, {Sang Hyun}",

note = "Funding Information: D.Y., A.B., D.A.M., and S.-H.O. acknowledge support from the U.S. National Science Foundation (NSF ECCS 1809723 and ECCS 1809240). D.Y. and S.-H.O. acknowledge partial support provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR). F.d.L.P. and L.M.-M. acknowledge financial support from Spanish Ministry of Economy and Competitivity through projects MAT2017-88358-C3-1-R and MAT2017-88358-C3-2-R and the Arag{\'o}n Government project Q-MAD. M.P. acknowledges support from the U.S. National Science Foundation (NSF DMR-1905135). S.-H.O. further acknowledges support from the Sanford P. Bordeau Endowed Chair at the University of Minnesota and the McKnight Foundation. Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",

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doi = "10.1021/acsnano.0c10014",

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AU - Yoo, Daehan

AU - Barik, Avijit

AU - De León-Pérez, Fernando

AU - Mohr, Daniel A.

AU - Pelton, Matthew

AU - Martín-Moreno, Luis

AU - Oh, Sang Hyun

N1 - Funding Information: D.Y., A.B., D.A.M., and S.-H.O. acknowledge support from the U.S. National Science Foundation (NSF ECCS 1809723 and ECCS 1809240). D.Y. and S.-H.O. acknowledge partial support provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR). F.d.L.P. and L.M.-M. acknowledge financial support from Spanish Ministry of Economy and Competitivity through projects MAT2017-88358-C3-1-R and MAT2017-88358-C3-2-R and the Aragón Government project Q-MAD. M.P. acknowledges support from the U.S. National Science Foundation (NSF DMR-1905135). S.-H.O. further acknowledges support from the Sanford P. Bordeau Endowed Chair at the University of Minnesota and the McKnight Foundation. Publisher Copyright: © 2021 American Chemical Society.

PY - 2021/4/27

Y1 - 2021/4/27

N2 - On-chip integration of plasmonics and electronics can benefit a broad range of applications in biosensing, signal processing, and optoelectronics. A key requirement is a chip-scale manufacturing method. Here, we demonstrate a split-trench resonator platform that combines a high-quality-factor resonant plasmonic biosensor with radio frequency (RF) nanogap tweezers. The split-trench resonator can simultaneously serve as a dielectrophoretic trap and a nanoplasmonic sensor. Trapping is accomplished by applying an RF electrical bias across a 10 nm gap, thereby either attracting or repelling analytes. Trapped analytes are detected in a label-free manner using refractive-index sensing, enabled by interference between surface-plasmon standing waves in the trench and light transmitted through the gap. This active sample concentration mechanism enables detection of nanoparticles and proteins at a concentration as low as 10 pM. We can manufacture centimeter-long split-trench cavity resonators with high throughput via photolithography and atomic layer deposition, toward practical applications in biosensing, spectroscopy, and optoelectronics.

AB - On-chip integration of plasmonics and electronics can benefit a broad range of applications in biosensing, signal processing, and optoelectronics. A key requirement is a chip-scale manufacturing method. Here, we demonstrate a split-trench resonator platform that combines a high-quality-factor resonant plasmonic biosensor with radio frequency (RF) nanogap tweezers. The split-trench resonator can simultaneously serve as a dielectrophoretic trap and a nanoplasmonic sensor. Trapping is accomplished by applying an RF electrical bias across a 10 nm gap, thereby either attracting or repelling analytes. Trapped analytes are detected in a label-free manner using refractive-index sensing, enabled by interference between surface-plasmon standing waves in the trench and light transmitted through the gap. This active sample concentration mechanism enables detection of nanoparticles and proteins at a concentration as low as 10 pM. We can manufacture centimeter-long split-trench cavity resonators with high throughput via photolithography and atomic layer deposition, toward practical applications in biosensing, spectroscopy, and optoelectronics.

KW - Fano resonance

KW - atomic layer lithography

KW - dielectrophoresis

KW - extraordinary optical transmission

KW - plasmonics

KW - trapping

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JO - ACS nano

JF - ACS nano

IS - 4

ER -

Plasmonic Split-Trench Resonator for Trapping and Sensing

Abstract

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