Double slit interferometry to measure the EUV refractive indices of solids using high harmonics

Lucy A. Wilson; Andrew K. Rossall; Erik Wagenaars; Cephise M. Cacho; Emma Springate; I. C.Edmond Turcu; Greg J. Tallents

doi:10.1364/AO.51.002057

Double slit interferometry to measure the EUV refractive indices of solids using high harmonics

Lucy A. Wilson, Andrew K. Rossall, Erik Wagenaars, Cephise M. Cacho, Emma Springate, I. C.Edmond Turcu, Greg J. Tallents

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

5 Citations (Scopus)

Abstract

Accurate values of the extreme ultraviolet (EUV) optical properties of materials are required to make EUV optics such as filters and multilayer mirrors. The optical properties of aluminum studied in this report are required, in particular, as aluminum is used as an EUV filter material. The complex refractive index of solid aluminum and the imaginary part of the refractive index of solid iron between 17 eV and 39 eV have been measured using EUV harmonics produced from an 800 nm laser focused to 10¹⁴ Wcm ² in an argon gas jet impinging on a double slit interferometer.

Original language	English
Pages (from-to)	2057-2061
Number of pages	5
Journal	Applied Optics
Volume	51
Issue number	12
DOIs	https://doi.org/10.1364/AO.51.002057
Publication status	Published - 20 Apr 2012
Externally published	Yes

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AU - Rossall, Andrew K.

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AU - Cacho, Cephise M.

AU - Springate, Emma

AU - Turcu, I. C.Edmond

AU - Tallents, Greg J.

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AB - Accurate values of the extreme ultraviolet (EUV) optical properties of materials are required to make EUV optics such as filters and multilayer mirrors. The optical properties of aluminum studied in this report are required, in particular, as aluminum is used as an EUV filter material. The complex refractive index of solid aluminum and the imaginary part of the refractive index of solid iron between 17 eV and 39 eV have been measured using EUV harmonics produced from an 800 nm laser focused to 1014 Wcm 2 in an argon gas jet impinging on a double slit interferometer.

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Double slit interferometry to measure the EUV refractive indices of solids using high harmonics

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