Enhancing large-area scintillator detection with photonic crystal cavities

Scintillators are materials that emit visible photons when bombarded by high-energy particles (X-ray, γ-ray, electrons, neutrinos, etc.) and are crucial for applications, including X-ray imaging and high-energy particle detection. Here, we show that one-dimensional (1D) photonic crystal (PhC) caviti...

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Main Authors: Ye, Wenzheng, Bizarri, Gregory, Muhammad Danang Birowosuto, Wong, Liang Jie
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/164333
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1643332023-01-26T06:54:22Z Enhancing large-area scintillator detection with photonic crystal cavities Ye, Wenzheng Bizarri, Gregory Muhammad Danang Birowosuto Wong, Liang Jie School of Electrical and Electronic Engineering CNRS International NTU THALES Research Alliances Engineering::Electrical and electronic engineering Science::Physics::Nuclear and particle physics Scintillators Nanophotonics Purcell Effect Spontaneous Emission High Energy Particles Scintillators are materials that emit visible photons when bombarded by high-energy particles (X-ray, γ-ray, electrons, neutrinos, etc.) and are crucial for applications, including X-ray imaging and high-energy particle detection. Here, we show that one-dimensional (1D) photonic crystal (PhC) cavities, added externally to scintillator materials, can be used to tailor the intrinsic emission spectrum of scintillators via the Purcell effect. The emission spectral peaks can be shifted, narrowed, or split, improving the overlap between the scintillator emission spectrum and the quantum efficiency (QE) spectrum of the photodetector. As a result, the overall photodetector signal can be enhanced by over 200%. The use of external PhC cavities especially benefits thick and large-area scintillators, which are needed to stop particles with ultrahigh energy, as in large-area neutrino detectors. Our findings should pave the way to greater versatility and efficiency in the design of scintillators for applications, including X-ray imaging and positron emission tomography. Nanyang Technological University Submitted/Accepted version L.J.W. acknowledges the Nanyang Assistant Professorship Start-up Grant. 2023-01-25T07:41:50Z 2023-01-25T07:41:50Z 2022 Journal Article Ye, W., Bizarri, G., Muhammad Danang Birowosuto & Wong, L. J. (2022). Enhancing large-area scintillator detection with photonic crystal cavities. ACS Photonics, 9(12), 3917-3925. https://dx.doi.org/10.1021/acsphotonics.2c01235 2330-4022 https://hdl.handle.net/10356/164333 10.1021/acsphotonics.2c01235 2-s2.0-85143523573 12 9 3917 3925 en ACS Photonics 10.21979/N9/Y61CFL This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © 2022 American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org//10.1021/acsphotonics.2c01235. application/pdf application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Science::Physics::Nuclear and particle physics
Scintillators
Nanophotonics
Purcell Effect
Spontaneous Emission
High Energy Particles
spellingShingle Engineering::Electrical and electronic engineering
Science::Physics::Nuclear and particle physics
Scintillators
Nanophotonics
Purcell Effect
Spontaneous Emission
High Energy Particles
Ye, Wenzheng
Bizarri, Gregory
Muhammad Danang Birowosuto
Wong, Liang Jie
Enhancing large-area scintillator detection with photonic crystal cavities
description Scintillators are materials that emit visible photons when bombarded by high-energy particles (X-ray, γ-ray, electrons, neutrinos, etc.) and are crucial for applications, including X-ray imaging and high-energy particle detection. Here, we show that one-dimensional (1D) photonic crystal (PhC) cavities, added externally to scintillator materials, can be used to tailor the intrinsic emission spectrum of scintillators via the Purcell effect. The emission spectral peaks can be shifted, narrowed, or split, improving the overlap between the scintillator emission spectrum and the quantum efficiency (QE) spectrum of the photodetector. As a result, the overall photodetector signal can be enhanced by over 200%. The use of external PhC cavities especially benefits thick and large-area scintillators, which are needed to stop particles with ultrahigh energy, as in large-area neutrino detectors. Our findings should pave the way to greater versatility and efficiency in the design of scintillators for applications, including X-ray imaging and positron emission tomography.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Ye, Wenzheng
Bizarri, Gregory
Muhammad Danang Birowosuto
Wong, Liang Jie
format Article
author Ye, Wenzheng
Bizarri, Gregory
Muhammad Danang Birowosuto
Wong, Liang Jie
author_sort Ye, Wenzheng
title Enhancing large-area scintillator detection with photonic crystal cavities
title_short Enhancing large-area scintillator detection with photonic crystal cavities
title_full Enhancing large-area scintillator detection with photonic crystal cavities
title_fullStr Enhancing large-area scintillator detection with photonic crystal cavities
title_full_unstemmed Enhancing large-area scintillator detection with photonic crystal cavities
title_sort enhancing large-area scintillator detection with photonic crystal cavities
publishDate 2023
url https://hdl.handle.net/10356/164333
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