Patent Number: 
Section: claims

1. A multilayer optic device having an input face and an output face, the optic device comprising:a high-index material layer having a first real refractive index 1−δ1 and a first absorption coefficient β1;a low-index material layer having a second real refractive index 1−δ2 and a second absorption coefficient β2; anda grading zone disposed between the high-index material layer and the low-index material layer, the grading zone comprising a grading layer having a third real refractive index 1−δ3 and a third absorption coefficient β3, such that 1−δ1>1−δ3>1−δ2,wherein at least a portion of one or more of the high-index material layer, the grading zone and the low-index layer comprise one or more corrugations along a first direction, and wherein at least a portion of one or more of the high-index material layer, the grading zone and the low-index layer comprises one or more non-corrugation portions along a first direction. 2. The multilayer optic device of claim 1, wherein at least one corrugation is curved along a second direction. 3. The multilayer optic device of claim 2, wherein the second direction is about perpendicular to the first direction. 4. The multilayer optic device of claim 2, wherein the second direction is a fan beam direction. 5. The multilayer optic device of claim 2, wherein the corrugations are curved outwardly in the second direction with respect to a central axis of the optic device. 6. The multilayer optic device of claim 1, wherein the high-index layer, the grading zone and the low-index layer are conformally disposed. 7. The multilayer optic device of claim 1, comprising two or more multilayer sections, each multilayer section having a high-index material layer, a low-index material layer and a grading zone disposed between the high-index layer and the low-index layer, wherein the high-index layers of the multilayer sections are disposed adjacent each other to form a core. 8. The multilayer optic device of claim 1, comprising two or more multilayer sections, wherein the two multilayer sections have a common high-index layer. 9. The multilayer optic device of claim 1, wherein at least a portion of the high-index material layer comprises a core, and wherein the grading zone is disposed on at least a portion of the high-index material layer, and the low-index material layer is disposed on at least a portion of the grading zone. 10. The multilayer optic device of claim 9, comprising a first grading zone conformally disposed on a first surface of the core, and a second grading zone conformally disposed on a second surface of the core. 11. The multilayer optic device of claim 1, wherein at least one of the layers of the multilayer optic device comprises continuous corrugations in the first direction. 12. The multilayer optic device of claim 1, wherein the one or more corrugations comprise a relatively higher refractive index material compared to a material of the non-corrugation portion. 13. The multilayer optic device of claim 1, wherein the one or more corrugations comprise corrugation comprises a relatively lower refractive index material compared to a material of the non-corrugation portion. 14. The multilayer optic device of claim 1, further comprising a filtering region disposed on the input face of the optic device, wherein the filtering region is configured to filter out X ray beams of determined energy levels from X-ray beams incident on the multilayer optic device. 15. The multilayer optic device of claim 14, wherein the filtering region comprises a pointed conical structure. 16. The multilayer optic device of claim 14, wherein an exterior surface of the filtering region comprises a multilayer stack. 17. The multilayer optic device of claim 16, wherein the multilayer stack comprises alternating layers of high- and low-refractive index materials. 18. The multilayer optic device of claim 16, wherein the multilayer stack comprises a low-index layer, a high-index layer and a grading zone disposed between the high- and low-index layers. 19. A method of making an optic device, comprising:providing a first multilayer section having a high-index layer, a grading zone and a low-index layer conformally disposed, wherein the high-index layer, the grading zone and the low-index layer comprise one or more corrugations along a first axis, and wherein at least one corrugation is curved along a second axis;providing a second multilayer section having a high-index layer, a grading zone and a low-index layer conformally disposed, wherein the high-index layer, the grading zone and the low-index layer comprise one or more corrugations along the first axis, and wherein at least one corrugation is curved along the second axis; anddisposing the first multilayer section on the second multilayer section such that the high-index layer of the first multilayer section and the high-index layer of the second multilayer section are disposed adjacent each other. 20. The method of claim 19, wherein providing the first and second multilayer sections, comprises:providing a first template and a second template, wherein the first and second templates comprise one or more grooves corresponding to the corrugations in the first and second multilayer sections; andconformally depositing one or more multilayers of the first and second multilayer sections on the first and second templates, respectively. 21. The method of claim 20, comprising:providing a high-index material layer having a first surface and a second surface, wherein the first and second surfaces comprise the one or more grooves corresponding to the corrugations in the multilayers of the first and second multilayer sections;conformally depositing grading zones on the first and second surfaces of the high-index material layer; andconformally depositing low-index material layers on corresponding grading zones. 22. A method of making an optic device, comprising:providing a multilayer optic device comprising multilayers, comprising:a high-index material layer having a first real refractive index 1−δ1 and a first absorption coefficient β1;a low-index material layer having a second real refractive index 1−δ2 and a second absorption coefficient β2;a grading zone disposed between the high-index material layer and the low-index material layer, the grading zone comprising a grading layer having a third real refractive index 1−δ3 and a third absorption coefficient β3, such that 1−δ1>1−δ3>1−δ2, wherein at least a portion of one or more of the high-index material layer, the grading zone and the low-index layer comprises one or more corrugations along a first direction;removing at least a portion of the low-index layer, and at least a portion of the grading zone along a plane to form grooves in the multilayers of the multilayer optic device; anddepositing a material in the grooves to form the corrugations. 23. The method of claim 22, further comprising removing at least a portion of opposite surfaces of the high-index material layer.