Hot-Spot Engineering in 3D Multi-Branched Nanostructures: Ultrasensitive Substrates for Surface-Enhanced Raman Spectroscopy

Manohar Chirumamilla, Anisha Chirumamilla, Alexander Roberts, Remo Proietti Zaccaria, Francesco De Angelis, Peter Kjær Kristensen, Roman Krahe, Sergey I. Bozhevolnyi, Kjeld Pedersen, Andrea Toma

Research output: Contribution to journalJournal articleResearchpeer-review

17 Citations (Scopus)

Abstract

The detection of probe molecules at ultralow concentrations, even at the
single-molecule level, can be addressed with the breakthrough concept of
plasmonic hot-spot engineering. In view of that, the fabrication of nanostructures
endowed with sub-10 nm gaps and extremely large near-field enhancement
has gained increasing attention, becoming a key-condition for improved
sensitivity. The present work demonstrates a new perspective in ultrasensitive
detection by engineering every individual plasmonic nanostructure with a
giant electric field confinement and superior hot-spot densities, thus eliminating
the need for extremely narrow interparticle separations.
Original languageEnglish
Article number1600836
JournalAdvanced Optical Materials
Volume5
Issue number4
Number of pages7
ISSN2195-1071
DOIs
Publication statusPublished - 2017

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Raman spectroscopy
Nanostructures
engineering
Molecules
Substrates
molecules
near fields
Electric fields
Fabrication
fabrication
electric fields
probes

Cite this

Chirumamilla, Manohar ; Chirumamilla, Anisha ; Roberts, Alexander ; Zaccaria, Remo Proietti ; De Angelis, Francesco ; Kristensen, Peter Kjær ; Krahe, Roman ; Bozhevolnyi, Sergey I. ; Pedersen, Kjeld ; Toma, Andrea. / Hot-Spot Engineering in 3D Multi-Branched Nanostructures : Ultrasensitive Substrates for Surface-Enhanced Raman Spectroscopy. In: Advanced Optical Materials. 2017 ; Vol. 5, No. 4.
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abstract = "The detection of probe molecules at ultralow concentrations, even at thesingle-molecule level, can be addressed with the breakthrough concept ofplasmonic hot-spot engineering. In view of that, the fabrication of nanostructuresendowed with sub-10 nm gaps and extremely large near-field enhancementhas gained increasing attention, becoming a key-condition for improvedsensitivity. The present work demonstrates a new perspective in ultrasensitivedetection by engineering every individual plasmonic nanostructure with agiant electric field confinement and superior hot-spot densities, thus eliminatingthe need for extremely narrow interparticle separations.",
author = "Manohar Chirumamilla and Anisha Chirumamilla and Alexander Roberts and Zaccaria, {Remo Proietti} and {De Angelis}, Francesco and Kristensen, {Peter Kj{\ae}r} and Roman Krahe and Bozhevolnyi, {Sergey I.} and Kjeld Pedersen and Andrea Toma",
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language = "English",
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Chirumamilla, M, Chirumamilla, A, Roberts, A, Zaccaria, RP, De Angelis, F, Kristensen, PK, Krahe, R, Bozhevolnyi, SI, Pedersen, K & Toma, A 2017, 'Hot-Spot Engineering in 3D Multi-Branched Nanostructures: Ultrasensitive Substrates for Surface-Enhanced Raman Spectroscopy', Advanced Optical Materials, vol. 5, no. 4, 1600836. https://doi.org/10.1002/adom.201600836

Hot-Spot Engineering in 3D Multi-Branched Nanostructures : Ultrasensitive Substrates for Surface-Enhanced Raman Spectroscopy. / Chirumamilla, Manohar; Chirumamilla, Anisha; Roberts, Alexander; Zaccaria, Remo Proietti; De Angelis, Francesco; Kristensen, Peter Kjær; Krahe, Roman; Bozhevolnyi, Sergey I.; Pedersen, Kjeld; Toma, Andrea.

In: Advanced Optical Materials, Vol. 5, No. 4, 1600836, 2017.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Hot-Spot Engineering in 3D Multi-Branched Nanostructures

T2 - Ultrasensitive Substrates for Surface-Enhanced Raman Spectroscopy

AU - Chirumamilla, Manohar

AU - Chirumamilla, Anisha

AU - Roberts, Alexander

AU - Zaccaria, Remo Proietti

AU - De Angelis, Francesco

AU - Kristensen, Peter Kjær

AU - Krahe, Roman

AU - Bozhevolnyi, Sergey I.

AU - Pedersen, Kjeld

AU - Toma, Andrea

PY - 2017

Y1 - 2017

N2 - The detection of probe molecules at ultralow concentrations, even at thesingle-molecule level, can be addressed with the breakthrough concept ofplasmonic hot-spot engineering. In view of that, the fabrication of nanostructuresendowed with sub-10 nm gaps and extremely large near-field enhancementhas gained increasing attention, becoming a key-condition for improvedsensitivity. The present work demonstrates a new perspective in ultrasensitivedetection by engineering every individual plasmonic nanostructure with agiant electric field confinement and superior hot-spot densities, thus eliminatingthe need for extremely narrow interparticle separations.

AB - The detection of probe molecules at ultralow concentrations, even at thesingle-molecule level, can be addressed with the breakthrough concept ofplasmonic hot-spot engineering. In view of that, the fabrication of nanostructuresendowed with sub-10 nm gaps and extremely large near-field enhancementhas gained increasing attention, becoming a key-condition for improvedsensitivity. The present work demonstrates a new perspective in ultrasensitivedetection by engineering every individual plasmonic nanostructure with agiant electric field confinement and superior hot-spot densities, thus eliminatingthe need for extremely narrow interparticle separations.

U2 - 10.1002/adom.201600836

DO - 10.1002/adom.201600836

M3 - Journal article

VL - 5

JO - Advanced Optical Materials

JF - Advanced Optical Materials

SN - 2195-1071

IS - 4

M1 - 1600836

ER -