title: Guided-mode resonance assisted directional emission of a wavelength-shifting film for application in scintillation detection.
abstract: Thin-film luminescent layers as wavelength shifters using in the scintillation detection system suffer with low efficiency due to the total internal reflection and the non-directional emission. In the present work, we design and fabricate a photonic crystal on the surface of LuTaO(4):Eu(3+) thin-film which is a newly developed luminescent material using in radiation detection systems. The entire structure shows guided-mode resonances with only one TE and TM mode. As a result, the emitting light is effectively extracted. Furthermore, due to only two modes existing in the layer, the directionality of emission is strongly controlled. This result enables the structured LuTaO(4):Eu(3+) thin-film to be a potential wavelength shifter with high-efficiency.
authors.forename: Shuang
authors.initials: S
authors.lastname: Wu
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Zhichao
authors.initials: Z
authors.lastname: Zhu
authors.forename: Chuanwei
authors.initials: C
authors.lastname: Cheng
authors.forename: Hong
authors.initials: H
authors.lastname: Chen
authors.forename: Mu
authors.initials: M
authors.lastname: Gu
authors.forename: Liang
authors.initials: L
authors.lastname: Chen
authors.forename: Jinling
authors.initials: J
authors.lastname: Liu
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Ouyang
authors.forename: Chaofan
authors.initials: C
authors.lastname: Xue
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Wu