Photonic band gap scintillator structures
Photonic band gap structures and related systems, devices and methods are provided.
1. A radiation detection device, comprising:
a photosensor coupled to a nonconducting structure comprising a photonic band gap structure, the nonconducting structure present on a surface of a scintillator selected from the group consisting of a cerium-doped lutetium oxyorthosilicate (LSO) scintillator, a cerium-doped lutetium yttrium oxyorthosilicate (LYSO:Ce) scintillator, a YAG:Ce scintillator, a lanthanide halide scintillator, and an elpasolite scintillator, wherein the photonic band gap structure comprises a patterned polymeric material with periodic posts or holes and is formed over an area of the scintillator greater than about 1 square millimeter;
wherein the photonic band gap structure comprises a band gap that matches an emission wavelength of the scintillator, wherein the emission wavelength of the scintillator ranges between 350 nm to 1100 nm; and
wherein the device is configured to detect gamma rays, x-rays, neutrons, or a combination thereof.
2. The device of claim 1 , wherein the nonconducting structure is a single layer comprising the photonic band gap structure.
3. The device of claim 1 , wherein the nonconducting structure includes a plurality of layers.
4. The device of claim 3 , wherein a first layer in the plurality comprises the photonic band gap structure and a second layer in the plurality comprises a transparent dielectric support layer between the photonic band gap structure and the surface of a scintillator.
5. The device of claim 4 , wherein the transparent dielectric support layer comprises sapphire having the formula Al 2 O 3 .
6. The device of claim 1 , wherein the nonconducting structure comprises a film formed directly on the surface of the scintillator.
7. The device of claim 6 , wherein the nonconducting structure is directly deposited on the surface of the scintillator.
8. The device of claim 1 , wherein the posts or holes are arranged in a triangular, square or hexagonal periodicity.
9. The device of claim 1 , wherein the photonic band gap structure is formed over an area of the scintillator greater than about 9 square millimeters.
10. The device of claim 1 , wherein the photonic band gap structure is formed over an area of the scintillator between about 1 square millimeter and 9 square millimeters.
11. The device of claim 1 , further comprising a photosensor coupled to the photonic band gap structure on the scintillator.
12. The device of claim 1 , wherein the photonic band gap structure is attached to a tape material.
13. The device of claim 12 , wherein the tape material is selected from the group consisting of polyimide, polyvinyl sheets, polyvinyl stripes, and a vinyl material.
14. The device of claim 11 , wherein the photosensor is coupled to the photonic band gap structure with a coupling material that is selected from the group consisting of a coupling grease, a resin, and a glue.
15. The device of claim 11 , wherein the photonic band gap structure is directly deposited on the photosensor.