Design, Fabrication, and Characterization of High-efficiency Extreme Ultraviolet Diffusers
Author | : |
Publisher | : |
Total Pages | : 27 |
Release | : 2004 |
ISBN-10 | : OCLC:727330748 |
ISBN-13 | : |
Rating | : 4/5 (48 Downloads) |
Book excerpt: As the development of extreme ultraviolet (EUV) lithography progresses, interest grows in the extension of traditional optical components to the EUV regime. The strong absorption of EUV by most materials and its extremely short wavelength, however, makes it very difficult to implement many components that are commonplace in the longer wavelength regimes. One such example is the diffuser often implemented with ordinary ground glass in the visible light regime. Here we demonstrate the fabrication of reflective EUV diffusers with high efficiency within a controllable bandwidth. Using these techniques we have fabricated diffusers with efficiencies exceeding 10% within a moderate angular single-sided bandwidth of approximately 0.06 radians.