Coherent light generators – Free electron laser
Patent
1997-07-22
1999-04-20
Sanghavi, Hemang
Coherent light generators
Free electron laser
372 37, 372 73, 372 99, 505180, 505210, H01S 300
Patent
active
058964070
ABSTRACT:
A high-efficiency plasma confining method, and a laser oscillating method of oscillating a laser, confine a plasma generated by entering a laser beam via an entry of a superconducting cylinder within the cylinder. The methods include the step of inhibiting diffusion or expansion in the radial or axial direction of the generated plasma by reducing the inside diameter of the cylinder between the entrance and an exit thereof. A magnetic line of force may be generated in the axial direction by winding a coil around the superconducting cylinder, to thereby confine the plasma. A laser oscillator for carrying out the method includes a superconducting cylinder, a supply mechanism for supplying a gas or a solid into the cylinder, and a laser irradiating mechanism. The inside diameter of the cylinder is reduced between an entry and an exit thereof, or the inside diameter of the cylinder is reduced at the entry and the exit thereof.
REFERENCES:
patent: 3961197 (1976-06-01), Dawson
patent: 4152625 (1979-05-01), Conard
patent: 4542510 (1985-09-01), Black, Jr.
patent: 5048025 (1991-09-01), Takemura
patent: 5410558 (1995-04-01), Hackett
Ishige Youichi
Shiina Tomio
Yamauchi Toshihiko
Japan Atomic Energy Research Institute
Miyama & Co., Ltd.
Sanghavi Hemang
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