Hollow waveguide tips for controlling beam divergence and method of making such tips
AssigneeRamot University Authority for Applied Research and Industrial Development Ltd.
InventorsNathan Croitoru, Jacob Dror, Israel Gannot, Reuben Dahan
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Abstract
A hollow waveguide for guiding laser energy, includes a proximal end for receiving the laser energy and a distal end terminating in a distal tip for delivering the laser energy to a working area. The distal end of the hollow waveguide includes an annular, converging, inner surface converging the laser energy towards the distal tip such as to concentrate the laser energy delivered through the distal tip to the working area. Also described are methods of making the hollow waveguide.
Claims20
A hollow waveguide for guiding laser energy including a hollow tube, a dielectric layer on the inner surface of the tube, and a metal layer between said tube and said dielectric layer;
- said hollow waveguide having a proximal end for receiving the laser energy and a distal end terminating in a distal tip for delivering the laser energy to a working area;
- said distal end of the hollow waveguide including an annular, converging, inner surface converging the laser energy towards said distal tip such as to concentrate the laser energy delivered through the distal tip to the working area.
A hollow waveguide for guiding laser energy, including a proximal end for receiving the laser energy, and a distal end terminating in a distal tip for delivering the laser energy to a working area;
- said distal end of the hollow waveguide including an annular, converging, inner surface converging the laser energy towards said distal tip such as to concentrate the laser energy delivered through the distal tip to the working area;
- said hollow waveguide further including an annular, diverging inner surface between said annular, converging, inner surface and said distal tip for diverging the laser energy before exiting through said distal tip to the working area.
A hollow waveguide for guiding laser energy, including a proximal end for receiving the laser energy and a distal end terminating in a distal tip for delivering the laser energy to a working area;
- said distal end of the hollow waveguide including an annular, converging, inner surface converging the laser energy towards said distal tip such as to concentrate the laser energy delivered through the distal tip to the working area;
- said hollow waveguide further including an annular, diverging inner surface between said annular, converging, inner surface and said distal tip for diverging the laser energy before exiting through said distal tip to the working area.
Dependencies are inferred from the claim text.