Photonic-Crystal Scintillators: Molding the Flow of Light to Enhance X-Ray and γ -Ray Detection
| Autor: | Yaniv Kurman, Ido Kaminer, Adi Pick, Ohad Segal, Avner Shultzman |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Scintillation
Materials science Photon Physics::Instrumentation and Detectors business.industry Astrophysics::High Energy Astrophysical Phenomena Physics::Optics General Physics and Astronomy Scintillator Purcell effect 01 natural sciences 0103 physical sciences Optoelectronics Light emission Spontaneous emission 010306 general physics business Excitation Photonic crystal |
| Zdroj: | Physical Review Letters. 125 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.125.040801 |
| Popis: | Scintillators are central for detection of γ-ray, x-ray, and high energy particles in various applications, all seeking higher scintillation yield and rate. However, these are limited by the intrinsic isotropy of spontaneous emission of the scintillation light and its inefficient outcoupling. We propose a new design methodology for scintillators that exploits the Purcell effect to enhance their light emission. As examples, we show 1D photonic crystals from scintillator materials that achieve directional emission and fivefold enhancement in the number of detectable photons per excitation. |
| Databáze: | OpenAIRE |
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