Stable high-reflection Be/Mg multilayer mirrors for solar astronomy at 30.4 nm

被引：10

作者：

Polkovnikov, Vladimir N. ^{[1
]}

Chkhalo, Nikolai, I ^{[1
]}

Pleshkov, Roman S. ^{[1
]}

Salashchenko, Nikolai N. ^{[1
]}

Schaefers, Franz ^{[2
]}

Sertsu, Mewael G. ^{[2
]}

Sokolov, Andrey ^{[3
]}

Svechnikov, Mikhail, V ^{[1
]}

Zuev, Sergei Yu ^{[1
]}

机构：

[1] RAS, Inst Phys Microstruct, GSP 105, Nizhnii Novgorod 603950, Russia

[2] Helmholtz Zentrum Berlin, Dept Nanoopt & Technol, Albert Einstein Str 15, D-12489 Berlin, Germany

[3] Helmholtz Zentrum Berlin, Dept Precis Gratings, Albert Einstein Str 15, D-12489 Berlin, Germany

来源：

OPTICS LETTERS | 2019年 / 44卷 / 02期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

EXTREME-ULTRAVIOLET; OPTICS;

D O I：

10.1364/OL.44.000263

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The He-II = (lambda = 30.4 nm) emission line is one of the spectral channels chosen to study solar corona. This Letter reports on investigations of novel beryllium (Be)/magnesium multilayer coatings which, when incorporated beneath a protective bilayer of aluminium and Be, ensure particularly high-reflection coefficients of up to 56%, a spectral width of Delta lambda = 1.6 nm (lambda/Delta lambda approximate to 20), and high temporal stability. (C) 2019 Optical Society of America

引用

页码：263 / 266

页数：4

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