Plasmonically enhanced upconversion of 1500 nm light via trivalent Er in a TiO2 matrix

Harish Lakhotiya; Adnan Nazir; Søren Peder Madsen; Jeppe Christiansen; Emil Eriksen; Joakim Vester-Petersen; Sabrina Rostgaard Johannsen; Bjarke Rolighed Jeppesen; Peter Balling; Arne Nylandsted Larsen; Brian Julsgaard

doi:10.1063/1.4972785

Plasmonically enhanced upconversion of 1500 nm light via trivalent Er in a TiO2 matrix

Harish Lakhotiya, Adnan Nazir, Søren Peder Madsen, Jeppe Christiansen, Emil Eriksen, Joakim Vester-Petersen, Sabrina Rostgaard Johannsen, Bjarke Rolighed Jeppesen, Peter Balling, Arne Nylandsted Larsen, Brian Julsgaard^*

^*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

20 Citationer (Scopus)

Abstract

In this letter, we present a comparative experimental-simulation study of Au-nanodisc-enhanced upconversion of 1500 nm light in an Er ³⁺ doped TiO ₂ thin film. The geometry of the Au nanodiscs was guided by finite-element simulations based on a single nanodisc in a finite computational domain and controlled experimentally using electron-beam lithography. The surface-plasmon resonances (SPRs) exhibited a well-known spectral red shift with increasing diameter, well explained by the model. However, an experimentally observed double-peak SPR, which resulted from inter-particle interactions, was expectedly not captured by the single-particle model. At resonance, the model predicted a local-field enhancement of the upconversion yield, and experimentally, the luminescence measurements showed such enhancement up to nearly 7 fold from a nanodisc with 315 nm diameter and 50 nm height. The upconversion enhancement agreed qualitatively with the theoretical predictions, however with 3-5 times higher enhancement, which was attributed to scattered light from neighboring particles.

Originalsprog	Engelsk
Artikelnummer	263102
Tidsskrift	Applied Physics Letters
Vol/bind	109
Nummer	26
Antal sider	6
ISSN	0003-6951
DOI	https://doi.org/10.1063/1.4972785
Status	Udgivet - 26 dec. 2016

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title = "Plasmonically enhanced upconversion of 1500 nm light via trivalent Er in a TiO2 matrix",

abstract = "In this letter, we present a comparative experimental-simulation study of Au-nanodisc-enhanced upconversion of 1500 nm light in an Er 3+ doped TiO 2 thin film. The geometry of the Au nanodiscs was guided by finite-element simulations based on a single nanodisc in a finite computational domain and controlled experimentally using electron-beam lithography. The surface-plasmon resonances (SPRs) exhibited a well-known spectral red shift with increasing diameter, well explained by the model. However, an experimentally observed double-peak SPR, which resulted from inter-particle interactions, was expectedly not captured by the single-particle model. At resonance, the model predicted a local-field enhancement of the upconversion yield, and experimentally, the luminescence measurements showed such enhancement up to nearly 7 fold from a nanodisc with 315 nm diameter and 50 nm height. The upconversion enhancement agreed qualitatively with the theoretical predictions, however with 3-5 times higher enhancement, which was attributed to scattered light from neighboring particles.",

author = "Harish Lakhotiya and Adnan Nazir and Madsen, {S{\o}ren Peder} and Jeppe Christiansen and Emil Eriksen and Joakim Vester-Petersen and Johannsen, {Sabrina Rostgaard} and Jeppesen, {Bjarke Rolighed} and Peter Balling and Larsen, {Arne Nylandsted} and Brian Julsgaard",

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T1 - Plasmonically enhanced upconversion of 1500 nm light via trivalent Er in a TiO2 matrix

AU - Lakhotiya, Harish

AU - Nazir, Adnan

AU - Madsen, Søren Peder

AU - Christiansen, Jeppe

AU - Eriksen, Emil

AU - Vester-Petersen, Joakim

AU - Johannsen, Sabrina Rostgaard

AU - Jeppesen, Bjarke Rolighed

AU - Balling, Peter

AU - Larsen, Arne Nylandsted

AU - Julsgaard, Brian

PY - 2016/12/26

Y1 - 2016/12/26

N2 - In this letter, we present a comparative experimental-simulation study of Au-nanodisc-enhanced upconversion of 1500 nm light in an Er 3+ doped TiO 2 thin film. The geometry of the Au nanodiscs was guided by finite-element simulations based on a single nanodisc in a finite computational domain and controlled experimentally using electron-beam lithography. The surface-plasmon resonances (SPRs) exhibited a well-known spectral red shift with increasing diameter, well explained by the model. However, an experimentally observed double-peak SPR, which resulted from inter-particle interactions, was expectedly not captured by the single-particle model. At resonance, the model predicted a local-field enhancement of the upconversion yield, and experimentally, the luminescence measurements showed such enhancement up to nearly 7 fold from a nanodisc with 315 nm diameter and 50 nm height. The upconversion enhancement agreed qualitatively with the theoretical predictions, however with 3-5 times higher enhancement, which was attributed to scattered light from neighboring particles.

AB - In this letter, we present a comparative experimental-simulation study of Au-nanodisc-enhanced upconversion of 1500 nm light in an Er 3+ doped TiO 2 thin film. The geometry of the Au nanodiscs was guided by finite-element simulations based on a single nanodisc in a finite computational domain and controlled experimentally using electron-beam lithography. The surface-plasmon resonances (SPRs) exhibited a well-known spectral red shift with increasing diameter, well explained by the model. However, an experimentally observed double-peak SPR, which resulted from inter-particle interactions, was expectedly not captured by the single-particle model. At resonance, the model predicted a local-field enhancement of the upconversion yield, and experimentally, the luminescence measurements showed such enhancement up to nearly 7 fold from a nanodisc with 315 nm diameter and 50 nm height. The upconversion enhancement agreed qualitatively with the theoretical predictions, however with 3-5 times higher enhancement, which was attributed to scattered light from neighboring particles.

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U2 - 10.1063/1.4972785

DO - 10.1063/1.4972785

M3 - Journal article

SN - 0003-6951

VL - 109

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 263102

ER -

Plasmonically enhanced upconversion of 1500 nm light via trivalent Er in a TiO2 matrix

Abstract

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