منابع مشابه
Refraction of power-law spatial solitons – the Helmholtz-Snell law
The behaviour of a scalar optical beam at the boundary between two dissimilar nonlinear media is of fundamental interest in nonlinear photonics. Here, we report the first systematic generalization of our Kerr analyses to a wider class of power-law materials. Universal refraction laws will be given, and theorysimulation agreement demonstrated.
متن کاملSnell’s Law and Uniform Refraction
1.1. In vector form. Suppose Γ is a surface inR3 that separates two media I and II that are homogeneous and isotropic. Let v1 and v2 be the velocities of propagation of light in the media I and II respectively. The index of refraction of the medium I is by definition n1 = c/v1, where c is the velocity of propagation of light in the vacuum, and similarly n2 = c/v2. If a ray of light∗ having dire...
متن کاملThe negative index of refraction demystified
We study electromagnetic wave propagation in mediums in which the effective relative permittivity and the effective relative permeability are allowed to take any value in the upper half of the complex plane. A general condition is derived for the phase velocity to be oppositely directed to the power flow. That extends the recently studied case of propagation in mediums for which the relative pe...
متن کاملExperimental verification and simulation of negative index of refraction using Snell's law.
We 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 existence of negative index of refraction materials. The index of refraction is a function of frequency. At 12.6 GHz we measure and compute the r...
متن کاملassessment of the park- ang damage index for performance levels of rc moment resisting frames
چکیده هدف اصلی از طراحی لرزه ای تامین ایمنی جانی در هنگام وقوع زلزله و تعمیر پذیر بودن سازه خسارت دیده، پس از وقوع زلزله است. تجربه زلزله های اخیر نشان داده است که ساختمان های طراحی شده با آیین نامه های مبتنی بر نیرو از نظر محدود نمودن خسارت وارده بر سازه دقت لازم را ندارند. این امر سبب پیدایش نسل جدید آیین نامه های مبتنی بر عملکرد شده است. در این آیین نامه ها بر اساس تغییرشکل های غیرارتجاعی ...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1906
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1906.tb02921.x