Perfect control of reflection and refraction using spatially dispersive metasurfaces [PDF]
, 2016 Nonuniform metasurfaces (electrically thin composite layers) can be used for shaping refracted and reflected electromagnetic waves. However, known design approaches based on the generalized refraction and reflection laws do not allow realization of ...
V. Asadchy +6 more
semanticscholar +1 more source
Anomalous Refraction of Acoustic Guided Waves in Solids with Geometrically Tapered Metasurfaces. [PDF]
Physical Review Letters, 2016 The concept of a metasurface opens new exciting directions to engineer the refraction properties in both optical and acoustic media. Metasurfaces are typically designed by assembling arrays of subwavelength anisotropic scatterers able to mold incoming ...
Hongfei Zhu, F. Semperlotti
semanticscholar +1 more source
Theory, design, and experimental verification of a reflectionless bianisotropic Huygens' metasurface for wide-angle refraction. [PDF]
, 2018 Huygens' metasurfaces are electrically thin devices which allow arbitrary field transformations. Beam refraction is among the first demonstrations of realized metasurfaces.
M. Chen +3 more
semanticscholar +1 more source
Negative index of refraction in optical metamaterials. [PDF]
Optics Letters, 2005 A double-periodic array of pairs of parallel gold nanorods is shown to have a negative refractive index in the optical range. Such behavior results from the plasmon resonance in the pairs of nanorods for both the electric and the magnetic components of ...
V. Shalaev +6 more
semanticscholar +1 more source
The Refraction of the Newborn [PDF]
the american journal of the medical sciences, 1906 n ...
Elschnig, +2 more
openaire +2 more sources
Comparison of visual performance recovery after thin-flap LASIK with 4 femtosecond lasers [PDF]
International Journal of Ophthalmology, 2017 AIM: To compare the speed of visual recovery following myopic thin-flap LASIK with four femtosecond lasers. METHODS: Eighty-eight eyes of 46 patients who were consecutively scheduled for bilateral LASIK with the IntraLase FS60 (Group 1), Femto LDV ...
Jing Zhang +3 more
doaj +1 more source
TNOA Journal of Ophthalmic Science and Research, 2021 Aim: To study the prevalence of computer vision syndrome (CVS) and dry eyes in computer operators. Materials and Methods: The cross-sectional study was conducted at teaching institute.
Sanjeev Verma +3 more
doaj +1 more source
Application of Schlieren photography for visualisation of a pulsed gaseous target [PDF]
Biuletyn Wojskowej Akademii Technicznej, 2023 The article describes Schlieren photography, realised using a laser plasma as a radiationsource. Optical systems prepared for visualisation of a stationary gas outflow and a pulsed gaseoustarget, produced in an atmosphere or vacuum environment are ...
Wiktoria Rafalak +4 more
doaj +1 more source
Dark solitons at nonlinear interfaces [PDF]
, 2010 The refraction of dark solitons at a planar boundary separating two defocusing Kerr media is simulated and analyzed, for the first time (to our knowledge). Analysis is based on the nonlinear Helmholtz equation and is thus valid for any angle of incidence.
Aceves +31 more
core +2 more sources
All-angle negative refraction of highly squeezed plasmon and phonon polaritons in graphene–boron nitride heterostructures [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2016 Significance Realizing negative refraction of highly squeezed polaritons is an important step toward the active manipulation of light at the extreme nanoscale.
Xiao Lin +9 more
semanticscholar +1 more source