Results 1 to 10 of about 331,939 (271)

Ocular Refraction at Birth and Its Development During the First Year of Life in a Large Cohort of Babies in a Single Center in Northern Italy [PDF]

, 2020
The purpose of this study was to investigate refraction at birth and during the first year of life in a large cohort of babies born in a single center in Northern Italy.
Bartollino S., Bonfiglio V. M. E., Cillino S., Costagliola C., Filippelli M. E., Forbice E., Nascimbeni G., Semeraro F.   +7 more
core   +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, Aceves, Andersen, Boardman, Bradley, Cancellieri, Chamorro-Posada, Chamorro-Posada, Chamorro-Posada, Chamorro-Posada, Chen, Christian, Christian, Ciattoni, Fibich, Graham S. McDonald, Iturbe-Castillo, Julio Sánchez-Curto, Kartashov, Kivshar, Kivshar, Luther-Davies, Mihalache, Pedro Chamorro-Posada, Scheuer, Shadrivov, Shadrivov, Skinner, Stegeman, Swartzlander, Sánchez-Curto, Sánchez-Curto   +31 more
core   +2 more sources

Negative Refraction and Left-handed electromagnetism in Microwave Photonic Crystals [PDF]

, 2004
We demonstrate negative refraction of microwaves in metallic photonic crystals. The spectral response of the photonic crystal, which manifests both positive and negative refraction, is in complete agreement with band-structure calculations and numerical ...
E. Cubukcu, J. S. Derov, J. Sokoloff, K. Sakoda, N.-C. Panoiu, P. V. Parimi, P. Vodo, S. Sridhar, V. Veselago, W. T. Lu   +9 more
core   +1 more source

Amphoteric refraction at the interface between isotropic and anisotropic media [PDF]

, 2006
It is found that the amphoteric refraction, i.e. the refraction can be either positive or negative depending on the incident angles, could occur at a planar interface associated with a uniaxially anisotropic positive index media (PIM) or an anisotropic ...
Feise, Foteinopoulou, Garcia, Gomez-Santos, Grzegorczyk, Hailu Luo, Haiying Liu, Hooft, Houck, Hu, Jing Zhu, Lindel, Liu, Luo, Notomi, Pacheco, Parazzoli, Pendry, Pendry, Pendry, Pendry, Shelby, Smith, Smith, Smith, Smith, Smith, Valanju, Valanju, Veselago, Wei Hu, Williams, Xunong Yi, Yariv, Zhang   +34 more
core   +2 more sources

What are the left-handed media and what is interesting about them? [PDF]

, 2004
We review the intensively discussed ideas about wave propagation and refraction in media where both electric permittivity and magnetic permeability are negative. The criticism against negative refraction as violating the causality principle is considered.
Bliokh, K. Yu., Bliokh, Yu. P.
core   +1 more source

Refraction of dispersive shock waves [PDF]

, 2012
We study a dispersive counterpart of the classical gas dynamics problem of the interaction of a shock wave with a counter-propagating simple rarefaction wave often referred to as the shock wave refraction.
A.M. Leszczyszyn, Ablowitz, Abramowitz, Amo, Arsenin, Assanto, Biondini, Chang, Christodoulides, Courant, El, El, El, El, El, El, El, Engels, Forest, G.A. El, Gatz, Ghofraniha, Grava, Grava, Gurevich, Gurevich, Gurevich, Gurevich, Hasimoto, Hoefer, Hoefer, Hoefer, Hoefer, Hoefer, Jin, Kamchatnov, Kamchatnov, Kamchatnov, Kivshar, Kodama, Kodama, Kudashev, Landau, Lax, Moses, Ovsyannikov, Pavlov, Pitaevskii, Rosciszewski, Rozhdestvenskii, Sasaki, Tian, Tian, Tricomi, Tsarev, V.V. Khodorovskii, Wan, Wan, Weideman, Whitham   +59 more
core   +5 more sources

Tunable negative refraction without absorption via electromagnetically induced chirality [PDF]

, 2007
We show that negative refraction with minimal absorption can be obtained by means of quantum interference effects similar to electromagnetically induced transparency.
D. M. Cook, Jürgen Kästel, Michael Fleischhauer, Ronald L. Walsworth, Susanne F. Yelin   +4 more
core   +2 more sources

Numerical simulations of negative-index refraction in wedge-shaped metamaterials [PDF]

, 2005
A wedge-shaped structure made of split-ring resonators (SRR) and wires is numerically simulated to evaluate its refraction behavior. Four frequency bands, namely, the stop band, left-handed band, ultralow-index band, and positive-index band, are ...
H. Liu, J. Zhu, P. Kolinko, S. N. Zhu, W. Cao, Z. G. Dong   +5 more
core   +1 more source

Refraction in exoplanet atmospheres: Photometric signatures, implications for transmission spectroscopy, and search in Kepler data

, 2017
Refraction deflects photons that pass through atmospheres, which affects transit light curves. Refraction thus provides an avenue to probe physical properties of exoplanet atmospheres and to constrain the presence of clouds and hazes.
B.-O. Demory, Benneke, Berta-Thompson, Bétrémieux, Bétrémieux, Bétrémieux, Bétrémieux, Bétrémieux, Charbonneau, Claret, D. Alp, Dalba, Demory, Demory, Fressin, García Muñoz, Gillon, Hippke, Hubbard, Huber, Hui, Jenkins, Kaltenegger, Kipping, Koch, Luger, Mandel, Misra, Misra, Robitaille, Seager, Seiff, Sheets, Sidis, Smith, Stumpe, Sudarsky, Weiss, Witteborn   +38 more
core   +1 more source

Free Space Optical Polarization De-multiplexing and Multiplexing by means of Conical Refraction [PDF]

, 2012
Polarization de-multiplexing and multiplexing by means of conical refraction is proposed to increase the channel capacity for free space optical communication applications.
Kalkandjiev, Todor K., Loiko, Yurii, Mompart, Jordi, Turpin, Alex   +3 more
core   +3 more sources