نتایج جستجو برای: refractive index

تعداد نتایج: 404833  

Journal: :Materials Today 2006

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Journal: :Metrologia 2019

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Journal: :Physics 2021

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2006
Victor Veselago Leonid Braginsky Valery Shklover Christian Hafner

Negative Refractive Index Materials Victor Veselago,1 Leonid Braginsky,2 Valery Shklover,3 and Christian Hafner4 ∗ 1Laboratory of Magnetic Materials, A. M. Prokhorov Institute of General Physics, 38 Vavilov Street, 119991 Moscow, Russia 2Institute of Semiconductors’ Physics, 13 Lavrent’eva Pr., 630090 Novosibirsk, Russia 3Laboratory of Crystallography, ETH Zürich, CH-8093 Zürich, Switzerland 4L...

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Journal: :Nature 1924

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Journal: :Nature 1924

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Journal: :Nature 1919

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Journal: :THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY 1994

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2011
N J Elton

Refractive index (RI) is a complex number comprising a real refractive index and an imaginary part: the absorption (or extinction) coefficient. The analysis of refractive index by the Surfoptic Imaging Reflectometer yields an approximation to the real part of the refractive index. The well established technique of ellipsometry, by contrast, can determine both the real refractive index and the e...

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ژورنال: انجمن مهندسی صوتیات ایران 2022
Ebrahimzadeh, A., Tariverdi, M., Zakeri Gatabi, B.,

In this article, the eigenvalues of the sound equation are used to determine the refractive index. This refractive index helps to extract the acoustic components of the material such as the speed of sound in the material. This will help in identifying targets, especially in the field of signal processing. For this purpose, a method has been extracted that can be used to establish a relation bet...

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