Two channel multilayer mirrors for astrophysics

Julien Gautier; Franck Delmotte; Marie Françoise Ravet; Arnaud Jérome; Françoise Bridou; Francoise Varnière; Frédéric Auchère

doi:10.1016/j.optcom.2008.01.069

Two channel multilayer mirrors for astrophysics

Julien Gautier, Franck Delmotte, Marie Françoise Ravet, Arnaud Jérome, Françoise Bridou, Francoise Varnière, Frédéric Auchère

Research output: Contribution to journal › Article › peer-review

Abstract

A two-channel mirror reflecting both Fe-IX/X (λ = 17.1 nm) and He-II (30.4 nm) resonance lines at near normal incidence has been designed, fabricated and characterized. These two passbands are often chosen in space instruments designed for the observation of the solar corona. The mirror structure used for optimization is a superposition of two periodic multilayers with three components per period. It has been designed by using optimization software with an appropriate merit function. The theoretical reflectivity for both resonance lines can reach 0.25. It is shown that, by using a set of filters, one can select either the Fe-IX/X or the He-II channel. The spectral response of the two-channel mirror has been measured on synchrotron radiation source on a large wavelength range, from 12 nm to 35 nm. Experimental reflectivity reaches 0.32 for the Fe-IX/X line and 0.19 for the He-II line.

Original language	English
Pages (from-to)	3032-3035
Number of pages	4
Journal	Optics Communications
Volume	281
Issue number	11
DOIs	https://doi.org/10.1016/j.optcom.2008.01.069
Publication status	Published - 1 Jun 2008

Keywords

EUV optics
Multilayers

Access to Document

10.1016/j.optcom.2008.01.069

Cite this

@article{f31162813bdc49b79d5d962690266798,

title = "Two channel multilayer mirrors for astrophysics",

abstract = "A two-channel mirror reflecting both Fe-IX/X (λ = 17.1 nm) and He-II (30.4 nm) resonance lines at near normal incidence has been designed, fabricated and characterized. These two passbands are often chosen in space instruments designed for the observation of the solar corona. The mirror structure used for optimization is a superposition of two periodic multilayers with three components per period. It has been designed by using optimization software with an appropriate merit function. The theoretical reflectivity for both resonance lines can reach 0.25. It is shown that, by using a set of filters, one can select either the Fe-IX/X or the He-II channel. The spectral response of the two-channel mirror has been measured on synchrotron radiation source on a large wavelength range, from 12 nm to 35 nm. Experimental reflectivity reaches 0.32 for the Fe-IX/X line and 0.19 for the He-II line.",

keywords = "EUV optics, Multilayers",

author = "Julien Gautier and Franck Delmotte and \{Fran{\c c}oise Ravet\}, Marie and Arnaud J{\'e}rome and Fran{\c c}oise Bridou and Francoise Varni{\`e}re and Fr{\'e}d{\'e}ric Auch{\`e}re",

year = "2008",

month = jun,

day = "1",

doi = "10.1016/j.optcom.2008.01.069",

language = "English",

volume = "281",

pages = "3032--3035",

journal = "Optics Communications",

issn = "0030-4018",

number = "11",

}

TY - JOUR

T1 - Two channel multilayer mirrors for astrophysics

AU - Gautier, Julien

AU - Delmotte, Franck

AU - Françoise Ravet, Marie

AU - Jérome, Arnaud

AU - Bridou, Françoise

AU - Varnière, Francoise

AU - Auchère, Frédéric

PY - 2008/6/1

Y1 - 2008/6/1

N2 - A two-channel mirror reflecting both Fe-IX/X (λ = 17.1 nm) and He-II (30.4 nm) resonance lines at near normal incidence has been designed, fabricated and characterized. These two passbands are often chosen in space instruments designed for the observation of the solar corona. The mirror structure used for optimization is a superposition of two periodic multilayers with three components per period. It has been designed by using optimization software with an appropriate merit function. The theoretical reflectivity for both resonance lines can reach 0.25. It is shown that, by using a set of filters, one can select either the Fe-IX/X or the He-II channel. The spectral response of the two-channel mirror has been measured on synchrotron radiation source on a large wavelength range, from 12 nm to 35 nm. Experimental reflectivity reaches 0.32 for the Fe-IX/X line and 0.19 for the He-II line.

AB - A two-channel mirror reflecting both Fe-IX/X (λ = 17.1 nm) and He-II (30.4 nm) resonance lines at near normal incidence has been designed, fabricated and characterized. These two passbands are often chosen in space instruments designed for the observation of the solar corona. The mirror structure used for optimization is a superposition of two periodic multilayers with three components per period. It has been designed by using optimization software with an appropriate merit function. The theoretical reflectivity for both resonance lines can reach 0.25. It is shown that, by using a set of filters, one can select either the Fe-IX/X or the He-II channel. The spectral response of the two-channel mirror has been measured on synchrotron radiation source on a large wavelength range, from 12 nm to 35 nm. Experimental reflectivity reaches 0.32 for the Fe-IX/X line and 0.19 for the He-II line.

KW - EUV optics

KW - Multilayers

U2 - 10.1016/j.optcom.2008.01.069

DO - 10.1016/j.optcom.2008.01.069

M3 - Article

AN - SCOPUS:41849097359

SN - 0030-4018

VL - 281

SP - 3032

EP - 3035

JO - Optics Communications

JF - Optics Communications

IS - 11

ER -

Two channel multilayer mirrors for astrophysics

Abstract

Keywords

Access to Document

Fingerprint

Cite this