Design and fabrication of multilayer mirrors for He-II radiation

被引：4
|
作者：
Hotta, Y [1 ]
Furudate, M [1 ]
Yamamoto, M [1 ]
Watanabe, M [1 ]
机构：
[1] Tohoku Univ, Sci Measurements Res Inst, Sendai, Miyagi 9808577, Japan
来源：
SURFACE REVIEW AND LETTERS | 2002年 / 9卷 / 01期
关键词：
D O I：
10.1142/S0218625X0200266X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Design, fabrication, and reflectance evaluation of multilayer mirrors for He-II radiation are described. Based on the available complex refractive indices of materials at the wavelength of 30.4 nm, Mg, Al, Si, Cr, and C were selected as small absorption material to be paired. Mo/Si and Sc found in previous works were also included. In referring to optimum design for the highest reflectance, multilayers of Al/Mg, Au/Mg, C/Mg, Sc/Mg, C/Si, Al/C, and Mo/Si were fabricated by ion-beam sputtering. The highest reflectance of 27% was observed by a 15-period Mg/Sc mirror.
引用
收藏
页码：571 / 576
页数：6
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