Patent ID: 9046780
Filing Date: 2015-06-02
Classification: B82Y,C03C,G02B,G03F,G21K

Abstract:
1. A multilayer mirror constructed and arranged to reflect radiation having a wavelength in the range of about 6.4 nm to about 7.2 nm, the multilayer mirror having alternating layers, the alternating layers comprising a first layer and a second layer, the first and second layers being selected from the group consisting of: U, or a compound or nitride thereof, and B Th, or a compound or nitride thereof, and B La, or a compound or nitride thereof, and B La, or a compound or nitride thereof, and B U, or a compound or nitride thereof, and B Th, or a compound or nitride thereof, and B La, or a compound or nitride thereof, and B layers, respectively; U, or a compound or nitride thereof, and B layers, respectively; C, and B layers, respectively; and Th, or a compound or nitride thereof, and B layers, respectively; and wherein at least one of the first layers is separated from a second layer by an interlayer disposed between the at least one of the first layers and the second layer, the interlayer comprising Cs in substantially solid form.