Enhancing large-area scintillator detection with photonic crystal cavities

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dc.contributor.authorYe, Wenzheng
dc.contributor.authorBizarri, Gregory
dc.contributor.authorBirowosuto, Muhammad Danang
dc.contributor.authorWong, Liang Jie
dc.date.accessioned2022-12-14T16:04:00Z
dc.date.available2022-12-14T16:04:00Z
dc.date.issued2022-12-02
dc.description.abstractScintillators 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.en_UK
dc.identifier.citationYe W, Bizarri G, Birowosuto MD, Wong LJ. (2022) Enhancing large-area scintillator detection with photonic crystal cavities. ACS Photonics, Volume 9, Issue 12, December 2022, pp. 3917-3925en_UK
dc.identifier.issn2330-4022
dc.identifier.urihttps://doi.org/10.1021/acsphotonics.2c01235
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18821
dc.language.isoenen_UK
dc.publisherAmerican Chemical Societyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectscintillatorsen_UK
dc.subjectnanophotonicsen_UK
dc.subjectPurcell effecten_UK
dc.subjectspontaneous emissionen_UK
dc.subjecthigh-energy particlesen_UK
dc.titleEnhancing large-area scintillator detection with photonic crystal cavitiesen_UK
dc.typeArticleen_UK

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