A framework for scintillation in nanophotonics
TLDR
In this article , a unified theory of nanophotonic scintillators was developed to account for the key aspects of scintillation: energy loss by high-energy particles and light emission by non-equilibrium electrons in nanostructured optical systems.Abstract:
Bombardment of materials by high-energy particles often leads to light emission in a process known as scintillation. Scintillation has widespread applications in medical imaging, x-ray nondestructive inspection, electron microscopy, and high-energy particle detectors. Most research focuses on finding materials with brighter, faster, and more controlled scintillation. We developed a unified theory of nanophotonic scintillators that accounts for the key aspects of scintillation: energy loss by high-energy particles, and light emission by non-equilibrium electrons in nanostructured optical systems. We then devised an approach based on integrating nanophotonic structures into scintillators to enhance their emission, obtaining nearly an order-of-magnitude enhancement in both electron-induced and x-ray-induced scintillation. Our framework should enable the development of a new class of brighter, faster, and higher-resolution scintillators with tailored and optimized performance. read more
Citations
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Cavity-mediated electron-photon pairs
Armin Feist,Guanhao Huang,Germaine Arend,Y. Yang,Jans Henke,Arslan S. Raja,F. J. S. Kappert,R. Wang,H. Lourencco-Martins,Zheru Qiu,J. Liu,Ofer Kfir,Tobias J. Kippenberg,Claus Ropers +13 more
TL;DR: In this article , the phase-matched interaction of free electrons with the evanescent vacuum field of a photonic chip-based optical microresonator was demonstrated for noise-suppressed optical mode imaging.
Journal ArticleDOI
A framework for scintillation in nanophotonics
TL;DR: In this article , a unified theory of nanophotonic scintillators was developed to account for the key aspects of scintillation: energy loss by high-energy particles and light emission by non-equilibrium electrons in nanostructured optical systems.
Journal ArticleDOI
Multispectral Large‐Panel X‐ray Imaging Enabled by Stacked Metal Halide Scintillators
TL;DR: In this paper , a multilayer stacked scintillators of different X-ray absorption capabilities and scintillation spectra are designed; in this scenario, the X•ray energy can be discriminated by detecting the emission spectra of each Scintillator.
Journal ArticleDOI
Photonic flatband resonances for free-electron radiation
Yi Yang,Charles Roques-Carmes,Steven E. Kooi,Haoning Tang,Justin Beroz,Eric Mazur,Ido Kaminer,John D. Joannopoulos,Marin Soljacic +8 more
TL;DR: In this paper , flatband resonances in a silicon-on-insulator photonic crystal slab were designed to control and enhance the associated free-electron radiation by tuning their trajectory and velocity.
Journal ArticleDOI
Free-electron–light interactions in nanophotonics
Charles Roques-Carmes,Steven E. Kooi,Yi Yang,Nicholas Rivera,Phillip D. Keathley,John D. Joannopoulos,Steven G. Johnson,Ido Kaminer,Karl K. Berggren,Marin Soljacic +9 more
TL;DR: In this article , a general, unified framework to describe free-electron light-matter interaction in arbitrary nanophotonic systems is presented, which sheds light on the physical underpinnings of many methods in the field used to control and enhance freeelectron radiation.
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