Refractive-index-matched hydrogel materials for measuring flow-structure interactions
نویسندگان
چکیده
منابع مشابه
Negative Refractive Index Materials
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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The importance of loss in the field solution for left-handed media, and in particular, the impact on what would otherwise be a purely evanescent field, is addressed. Using an equivalent electric current source, field solutions are constructed in semi-infinite and finite thickness left-handed media. In the slab case, field growth and power dissipation metrics with uniform amplitude and uniform p...
متن کاملSoft-x-ray interferometer for measuring the refractive index of materials.
We have designed and built a soft-x-ray interferometer to test the possibility of a direct measurement of the refractive index (i.e., the real part of the complex index) of materials in the soft-x-ray range. The interferometer is based on the Fresnel bimirror setup. It works near the zero path difference and requires only little spatial coherence. Plane mirrors at grazing incidence are the only...
متن کاملNegative refractive index in left-handed materials.
The real part of the refractive index n(omega) of a nearly transparent and passive medium is usually taken to have only positive values. Through an analysis of a current source radiating into a 1D "left-handed" material (LHM)-where the permittivity and permeability are simultaneously less than zero-we determine the analytic structure of n(omega), demonstrating frequency regions where the sign o...
متن کاملPhysics of negative refractive index materials
In the past few years, new developments in structured electromagnetic materials have given rise to negative refractive index materials which have both negative dielectric permittivity and negative magnetic permeability in some frequency ranges. The idea of a negative refractive index opens up new conceptual frontiers in photonics. One much-debated example is the concept of a perfect lens that e...
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ژورنال
عنوان ژورنال: Experiments in Fluids
سال: 2013
ISSN: 0723-4864,1432-1114
DOI: 10.1007/s00348-013-1456-z