نتایج جستجو برای: light refraction

تعداد نتایج: 404317  

2012
Francesco Aieta Ali Kabiri Patrice Genevet Nanfang Yu Mikhail A. Kats Zeno Gaburro Federico Capasso

A three-dimensional extension of the recently demonstrated generalization of the laws of refraction and reflection was investigated for both flat and curved metasurfaces. We found that out-of-plane refraction occurs for a metasurface that imparts a wavevector out of the plane of incidence onto the incident light beam. Metasurfaces provide arbitrary control over the direction of refraction, and ...

2010
Wenbo Sun Gorden Videen Bing Lin Yongxiang Hu Qiang Fu

The refraction of a localized narrow beam is significantly different from that of a plane wave. As the beam width decreases to be in the order of the wavelength, the refraction behavior deviates noticeably from Snel’s law, and when the width of a light beam is smaller than about one fifth of the wavelength of the incident light, finite-difference time-domain simulations demonstrate that refract...

Journal: :The Journal of the Nautical Society of Japan 1950

Journal: :Optics express 2007
W T Lu Y J Huang P Vodo R K Banyal C H Perry S Sridhar

Refraction at a smooth interface is accompanied by momentum transfer normal to the interface. We show that corrugating an initially smooth, totally reflecting, non-metallic interface provides a momentum kick parallel to the surface, which can be used to refract light negatively or positively. This new mechanism of negative refraction is demonstrated by visible light and microwave experiments on...

2017
Jaume Pujol Juan Carlos Ondategui-Parra Llorenç Badiella Carles Otero Meritxell Vilaseca Mikel Aldaba

PURPOSE To conduct a clinical validation of a virtual reality-based experimental system that is able to assess the spherical subjective refraction simplifying the methodology of ocular refraction. METHODS For the agreement assessment, spherical refraction measurements were obtained from 104 eyes of 52 subjects using three different methods: subjectively with the experimental prototype (Subj.E...

Journal: :Physical review letters 2002
Cristina Manuel Krishna Rajagopal

We imagine shining light on a lump of cold dense quark matter, in the color-flavor locked phase and therefore a transparent insulator. We calculate the angles of reflection and refraction, and the intensity of the reflected and refracted light. Although the only potentially observable context for this phenomenon (reflection of light from and refraction of light through an illuminated quark star...

2016
Krishna Rajagopal

We imagine shining light on a lump of cold dense quark matter, in the CFL phase and therefore a transparent insulator. We calculate the angles of reflection and refraction, and the intensity of the reflected and refracted light. Although the only potentially observable context for this phenomenon (reflection of light from and refraction of light through an illuminated quark star) is unlikely to...

2001
J. A. Andersen M. E. J. Friese A. G. Truscott Z. Ficek P. D. Drummond N. R. Heckenberg H. Rubinsztein-Dunlop

Recently there has been experimental and theoretical interest in cross-dispersion effects in rubidium vapor, which allows one beam of light to be guided by another. We present theoretical results which account for the complications created by the D line hyperfine structure of rubidium as well as the presence of the two major isotopes of rubidium. This allows the complex frequency dependence of ...

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