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AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsSara Campbell, Robert Noble, James Spencer
Estimating the term…
Photonic band gap fibers are described having one or more defects suitable for the acceleration of electrons or other charged particles. Methods and devices are described for exciting special purpose modes in the defects including laser coupling schemes as well as various fiber designs and components for facilitating excitation of desired modes. Results are also presented showing effects on modes due to modes in other defects within the fiber and due to the proximity of defects to the fiber edge. Techniques and devices are described for controlling electrons within the defect(s). Various applications for electrons or other energetic charged particles produced by such photonic band gap fibers are also described.
A charged particle accelerator comprising:
A photonic band gap fiber comprising one or more defects and a plurality of capillaries disposed around said one or more defects, wherein said photonic band gap fiber is capable of supporting one or more electromagnetic modes propagating along at least one of said one or more defects including a preferred mode, wherein said plurality of capillaries are disposed around said one or more defects in such manner so peak values for the transverse and longitudinal fields of said preferred mode occur at one or more locations resistant to breakdown, thereby increasing the power said photonic band gap fiber is capable of carrying.
A method of coupling energy into an electromagnetic wave propagating along a defect in a photonic band gap fiber comprising directing energy upon said photonic band gap fiber in a pattern having the symmetry of the arrangement of capillaries surrounding said defect.
A method of coupling energy into an electromagnetic wave propagating along two or more defects in a photonic band gap fiber comprising directing energy upon said photonic band gap fiber in a pattern having the symmetry of the capillaries surrounding said two or more defects, broken by the symmetry of the arrangement of said two or more defects.
Dependencies are inferred from the claim text.