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Low-speckle holographic beam shaping of high-coherence EUV sources

Description: This paper describes a method to arbitrarily shape and homogenize high-coherence extreme ultraviolet sources using time-varying holographic optical elements and a scanning subsystem to mitigate speckle. In systems with integration times longer than 100 ms, a speckle contrast below 1% can be achieved.
Date: August 1, 2010
Creator: Anderson, Christopher N.; Miyakawa, Ryan H. & Naulleau, Patrick
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

How Many Performance Shaping Factors are Necessary for Human Reliability Analysis?

Description: It has been argued that human reliability analysis (HRA) has expended considerable energy on creating detailed representations of human performance through an increasingly long list of performance shaping factors (PSFs). It is not clear, however, to what extent this refinement and expansion of PSFs has enhanced the quality of HRA. Indeed, there is considerable range in the number of PSFs provided by individual HRA methods, ranging from single factor models such as time-reliability curves, up to… more
Date: June 1, 2010
Creator: Boring, Ronald L.
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Partner: UNT Libraries Government Documents Department
open access

A Programmable Beam Shaping System for Tailoring the Profile of High Fluence Laser Beams

Description: Customized spatial light modulators have been designed and fabricated for use as precision beam shaping devices in fusion class laser systems. By inserting this device in a low-fluence relay plane upstream of the amplifier chain, 'blocker' obscurations can be programmed into the beam profile to shadow small isolated flaws on downstream optical components that might otherwise limit the system operating energy. In this two stage system, 1920 x 1080 bitmap images are first imprinted on incoherent,… more
Date: November 10, 2010
Creator: Heebner, J.; Borden, M.; Miller, P.; Stolz, C.; Suratwala, T.; Wegner, P. et al.
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Partner: UNT Libraries Government Documents Department
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