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Negative refraction in graphene-based hyperbolic metamaterials
, 2013Here, we numerically investigate the existence of negative group refraction in graphene-based hyperbolic metamaterials (HMM) at THz frequencies. The hyperbolic dispersion of the graphene-based HMM can be tuned by varying the chemical potential and ...
K. V. Sreekanth, A. Luca, G. Strangi
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Experimental verification and simulation of negative index of refraction using Snell's law.
Physical Review Letters, 2003We report the results of a Snell's law experiment on a negative index of refraction material in free space from 12.6 to 13.2 GHz. Numerical simulations using Maxwell's equations solvers show good agreement with the experimental results, confirming the ...
C. Parazzoli +4 more
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Archives of Ophthalmology, 1964
Only praise can be given to any book written by Sir Stewart Duke-Elder. His "The Practice of Refraction" is now in its seventh edition, which is proof enough of its worth. It is intended to be a practical and complete guide to the would-be refractionist, and this it is without burdening him with mathematical formulae and proof for every statement.
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Only praise can be given to any book written by Sir Stewart Duke-Elder. His "The Practice of Refraction" is now in its seventh edition, which is proof enough of its worth. It is intended to be a practical and complete guide to the would-be refractionist, and this it is without burdening him with mathematical formulae and proof for every statement.
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Faster, Better: Shear-Wave Velocity to 100 Meters Depth From Refraction Microtremor Arrays
, 2001Current techniques of estimating shallow shear velocities for assessment of earthquake site response are too costly for use at most construction sites.
J. Louie
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Optometry and Vision Science, 1978
The actions and indications of cypcloplegics are presented along with recommended dosages and uses for clinical measures of refractive error.
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The actions and indications of cypcloplegics are presented along with recommended dosages and uses for clinical measures of refractive error.
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Experimental Verification of a Negative Index of Refraction
Science, 2001R. Shelby, David R. Smith, S. Schultz
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JAMA, 1962
This book is the product of many years of thought and teaching by the author and deserves a place in the library of the discerning ophthalmologist. It has not been written to be a textbook, but rather a practical, clinically oriented handbook. The optics of certain visual problems are presented only when necessary, without the harassment of advanced ...
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This book is the product of many years of thought and teaching by the author and deserves a place in the library of the discerning ophthalmologist. It has not been written to be a textbook, but rather a practical, clinically oriented handbook. The optics of certain visual problems are presented only when necessary, without the harassment of advanced ...
openaire +3 more sources