Omnidirectional optical waveguide

摘要

In one embodiment, a system includes a scintillator material; a detector coupled to the scintillator material; and an omnidirectional waveguide coupled to the scintillator material, the omnidirectional waveguide comprising: a plurality of first layers comprising one or more materials having a refractive index in a first range; and a plurality of second layers comprising one or more materials having a refractive index in a second range, the second range being lower than the first range, a plurality of interfaces being defined between alternating ones of the first and second layers. In another embodiment, a method includes depositing alternating layers of a material having a relatively high refractive index and a material having a relatively low refractive index on a substrate to form an omnidirectional waveguide; and coupling the omnidirectional waveguide to at least one surface of a scintillator material.

主权项

1. A system, comprising:
a scintillator material; a detector coupled to the scintillator material; and a waveguide coupled to the scintillator material, the waveguide comprising:
a plurality of first layers comprising one or more materials having a refractive index in a first range;a plurality of second layers comprising one or more materials having a refractive index in a second range, the second range being lower than the first range, anda plurality of interfaces being defined between alternating ones of the first and second layers, wherein the one or more materials of the plurality of first layers comprise a different material than the scintillator material; and wherein the one or more materials of the plurality of second layers comprise a different material than the scintillator material.