PLATINUM CARBON MULTILAYER REFLECTORS FOR SOFT-X-RAY OPTICS

被引:24
作者
LODHA, GS
YAMASHITA, K
SUZUKI, T
HATSUKADE, I
TAMURA, K
ISHIGAMI, T
TAKAHAMA, S
NAMBA, Y
机构
[1] NAGOYA UNIV, DEPT PHYS, CHIKUSA KU, NAGOYA 46401, JAPAN
[2] MITSUBISHI ELECT CO LTD, TOKYO 141, JAPAN
[3] MIYAZAKI UNIV, DEPT ELECTR ENGN, MIYAZAKI 88921, JAPAN
[4] SONY CORP, ATSUGI, KANAGAWA 243, JAPAN
[5] CANON INC, TOKYO 146, JAPAN
[6] OSAKA UNIV, DEPT EARTH & SPACE SCI, TOYONAKA, OSAKA 560, JAPAN
[7] CHUBU UNIV, DEPT MECH ENGN, KASUGAI, AICHI 487, JAPAN
来源
APPLIED OPTICS | 1994年 / 33卷 / 25期
关键词
MULTILAYER; EXTREME-ULTRAVIOLET OPTICS; SYNCHROTRON RADIATION;
D O I
10.1364/AO.33.005869
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have fabricated Platinum/carbon (Pt/C) multilayer reflectors with 2d spacaings between 50 and 200 angstrom, using an electron-beam evaporator. We investigated the effects of 2d values, the number of layer pairs, substrate temperature, coatings, and the long-term stability on the reflectivity performance by using characteristic x rays and monochromatized synchrotron radiation in the 0.8-8-keV region. In this study we show that Pt/C multilayers with 10-20 layer pairs exhibit high and stable soft-x-ray reflectivity. The interfacial roughness was measured in the range of 5 angstrom and becomes lower for structures deposited at liquid-nitrogen temperatures. Coating these reflectors with a 100-angstrom-thick platinum layer increased the grazing angle reflectivity without significantly lowering the Bragg peak reflectivity.
引用
收藏
页码:5869 / 5874
页数:6
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