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Non-astigmatic imaging with matched pairs of spherically bent reflectors

United States Patent

July 10, 2012
View the Complete Patent at the US Patent & Trademark Office
Princeton Plasma Physics Laboratory - Visit the Office of Technology Transfer Website
Arrangements for the point-to-point imaging of a broad spectrum of electromagnetic radiation and ultrasound at large angles of incidence employ matched pairs of spherically bent reflectors to eliminate astigmatic imaging errors. Matched pairs of spherically bent crystals or spherically bent multi-layers are used for X-rays and EUV radiation; and matched pairs of spherically bent mirrors that are appropriate for the type of radiation are used with microwaves, infrared and visible light, or ultrasound. The arrangements encompass the two cases, where the Bragg angle--the complement to the angle of incidence in optics--is between and on both crystals/mirrors or between and on the first crystal/mirror and between and on the second crystal/mirror, where the angles of convergence and divergence are equal. For x-rays and EUV radiation, also the Bragg condition is satisfied on both spherically bent crystals/multi-layers.
Bitter; Manfred Ludwig (Princeton, NJ), Hill; Kenneth Wayne (Plainsboro, NJ), Scott; Steven Douglas (Wellesley, MA), Feder; Russell (Newton, PA), Ko; Jinseok (Cambridge, MA), Rice; John E. (N. Billerica, MA), Ince-Cushman; Alexander Charles (New York, NY), Jones; Frank (Manalapan, NJ)
U.S. Department of Energy (Washington, DC)
12/ 436,708
May 6, 2009
The United States Government has rights in this invention pursuant to Contract No. DE-AC02-76CH03073 with the U.S. Department of Energy.