Bragg reflector for microwave and far-infrared wave, and free electron laser provided with the reflector
AssigneeNEC Corporation
InventorYoshinori Suzuki
Life of this patent
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Abstract
A Bragg reflector for selecting a specific spectral line from an output of a free electron laser (FEL) driven in the Raman regime to feed back the spectral line to the FEL. The Bragg reflector comprises at least one reflector pipe (4A), and a plurality of ring-formed plates (8) with their outer peripheries fitted to the inner periphery of the reflector pipe. The plurality of the ring-formed plates are spaced apart from each other at a constant spacing prescribed so that the alignment of the ring-formed plates provide the Bragg reflection of microwaves or far-infrared waves of a prescribed wavelength.
Claims8
In an apparatus for providing Bragg reflection of microwaves and far-infrared waves, a Bragg reflector provided with a reflector part, the reflector part having at least one reflector element, each reflector element having a longitudinal axis and comprising
- one pipe, and
- a plurality of ring-formed plates being non-integral with said one pipe, said plurality of ring-formed plates having the same inner diameter and having outer peripheries fitted to the inner periphery of the one pipe, the plurality of ring-formed plates being adjustably spaced apart from each other so as to enable variation of a Bragg reflectivity of said Bragg reflector, thereby allowing selection of a desired wavelength in microwave and far-infrared regions.
Dependencies are inferred from the claim text.