SYMPOSIA PAPER Published: 01 January 1990

Damage Threshold Measurements of Reflective and Transmissive Optics at 130 nm


The GLORIA VUV facility at Spectra Technology, Inc. has been used to measure the damage threshold and reflectivity of first surface Al+MgF2 mirrors and second surface MgF2+Al+MgF2 mirrors. The mirrors were illuminated by high power VUV coherent radiation at 130 nm. Mirror reflectivity was monitored for several thousand pulses for each optic studied. Two nanosecond long pulses and energy densities as high as 20 mJ cm-2 were used for the measurements. In addition, measurements of “color center” formation rates in transmissive optics have been obtained. The GLORIA VUV facility, experimental measurement system, and damage results will be discussed in detail.

Author Information

Muller, CH
Hamilton, CE
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Developed by Committee: E13
Pages: 403–403
DOI: 10.1520/STP26507S
ISBN-EB: 978-0-8031-5157-4
ISBN-13: 978-0-8031-4478-1