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Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators
Photonic crystals (PhCs) are optical materials which can affect the propagation of light in multiple ways. In recent years PhCs contributed to major technological developments in the field of semiconductor lasers, light emitting diodes and photovoltaic applications. In our case we are investigating...
Autores principales: | , , , , , , |
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Lenguaje: | eng |
Publicado: |
2013
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1109/TNS.2013.2262574 http://cds.cern.ch/record/1709355 |
_version_ | 1780936634226704384 |
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author | Knapitsch, Arno Auffray, Etiennette Fabjan, Christian W Leclercq, Jean-Louis Letartre, Xavier Mazurczyk, Radoslaw Lecoq, Paul |
author_facet | Knapitsch, Arno Auffray, Etiennette Fabjan, Christian W Leclercq, Jean-Louis Letartre, Xavier Mazurczyk, Radoslaw Lecoq, Paul |
author_sort | Knapitsch, Arno |
collection | CERN |
description | Photonic crystals (PhCs) are optical materials which can affect the propagation of light in multiple ways. In recent years PhCs contributed to major technological developments in the field of semiconductor lasers, light emitting diodes and photovoltaic applications. In our case we are investigating the capabilities of photonic crystal slabs with the aim to improve the performance of heavy inorganic scintillators. To study the combination of scintillators and PhCs we use a Monte-Carlo program to simulate the light propagation inside a scintillator and a rigorous coupled wave analysis (RCWA) framework to analyse the optical PhC properties. The simulations show light output improvements of a wide range of scintillating materials due to light scattering effects of the PhC slabs. First samples have been produced on top of 1.2 × 2.6 × 5 mm LSO (cerium-doped Lutetium Oxyorthosilicate, Lu_2SiO_5:Ce^3+) scintillators using electron beam lithography and reactive ion etching (RIE). Our samples show a 30-60% light output improvement when compared to unstructured reference crystals which is in close accordance with our simulation results. In addition, a theoretical investigation of the restrictions of the current PhC sample is given which concludes with prospects for improved future designs. |
id | cern-1709355 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2013 |
record_format | invenio |
spelling | cern-17093552019-09-30T06:29:59Zdoi:10.1109/TNS.2013.2262574http://cds.cern.ch/record/1709355engKnapitsch, ArnoAuffray, EtiennetteFabjan, Christian WLeclercq, Jean-LouisLetartre, XavierMazurczyk, RadoslawLecoq, PaulEffects of Photonic Crystals on the Light Output of Heavy Inorganic ScintillatorsDetectors and Experimental TechniquesPhotonic crystals (PhCs) are optical materials which can affect the propagation of light in multiple ways. In recent years PhCs contributed to major technological developments in the field of semiconductor lasers, light emitting diodes and photovoltaic applications. In our case we are investigating the capabilities of photonic crystal slabs with the aim to improve the performance of heavy inorganic scintillators. To study the combination of scintillators and PhCs we use a Monte-Carlo program to simulate the light propagation inside a scintillator and a rigorous coupled wave analysis (RCWA) framework to analyse the optical PhC properties. The simulations show light output improvements of a wide range of scintillating materials due to light scattering effects of the PhC slabs. First samples have been produced on top of 1.2 × 2.6 × 5 mm LSO (cerium-doped Lutetium Oxyorthosilicate, Lu_2SiO_5:Ce^3+) scintillators using electron beam lithography and reactive ion etching (RIE). Our samples show a 30-60% light output improvement when compared to unstructured reference crystals which is in close accordance with our simulation results. In addition, a theoretical investigation of the restrictions of the current PhC sample is given which concludes with prospects for improved future designs.oai:cds.cern.ch:17093552013 |
spellingShingle | Detectors and Experimental Techniques Knapitsch, Arno Auffray, Etiennette Fabjan, Christian W Leclercq, Jean-Louis Letartre, Xavier Mazurczyk, Radoslaw Lecoq, Paul Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators |
title | Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators |
title_full | Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators |
title_fullStr | Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators |
title_full_unstemmed | Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators |
title_short | Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators |
title_sort | effects of photonic crystals on the light output of heavy inorganic scintillators |
topic | Detectors and Experimental Techniques |
url | https://dx.doi.org/10.1109/TNS.2013.2262574 http://cds.cern.ch/record/1709355 |
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