Reflection and refraction of light waves (explanation by Huygens' principle): A Java applet presenting Snell's law by Walter Fendt

2014 ◽  
Vol 52 (1) ◽  
pp. 61-61
Keyword(s):  
Java Applet ◽  
Reflection And Refraction ◽  
Light Waves ◽  
Huygens Principle ◽  
Snell’S Law ◽  
Snell's Law

Huygens' Principle: A case against optimality

2003 ◽  
Vol 26 (6) ◽  
pp. 779-781
Author(s):  
Hans-Martin Gaertner
Keyword(s):  
Conceptual Problem ◽  
Present Evidence ◽  
Fermat’S Principle ◽  
Huygens Principle ◽  
Snell’S Law ◽  
Snell's Law ◽  
Fermat's Principle

I will present evidence that nature does not optimize in the sense of Fermat's principle of least time, contrary to what Schoemaker's unintentionally ambiguous exposition might suggest. First, Huygens' principle, an alternative nonteleological account of Snell's law, is outlined. Second, I confront Fermat's principle with a substantive conceptual problem.

REFRACTIVE INDEX AND SNELL'S LAW FOR DIPOLE-EXCHANGE SPIN WAVES IN RESTRICTED GEOMETRY

SPIN ◽  
2011 ◽  
Vol 01 (01) ◽  
pp. 27-31 ◽  
Author(s):  
DAE-EUN JEONG ◽  
DONG-SOO HAN ◽  
SANG-KOOG KIM
Keyword(s):  
Refractive Index ◽  
Spin Waves ◽  
Restricted Geometry ◽  
Micromagnetic Simulations ◽  
Thin Film System ◽  
Reflection And Refraction ◽  
Snell’S Law ◽  
Snell's Law ◽  
Iron Garnet ◽  
Dipole Exchange

We derived an analytic expression of refractive index for dipole-exchange spin waves (DESWs) in a laterally confined heterogeneous magnetic thin-film system and also derived Snell's law for DESWs by employing a dispersion relation and a specific boundary condition at a heterogeneous magnetic interface. These analytical results mimic well the macroscopic behaviors of propagation, reflection and refraction of DESWs, as obtained from micromagnetic simulations, for example, on a specific yttrium-iron-garnet ( Y 3 Fe 5 O 12) and permalloy ( Ni 80 Fe 20) interface.

scholarly journals Snell's law for spin waves at a 90° magnetic domain wall

2020 ◽  
Vol 116 (11) ◽  
pp. 112402 ◽  
Author(s):  
Tomosato Hioki ◽  
Rei Tsuboi ◽  
Tom H. Johansen ◽  
Yusuke Hashimoto ◽  
Eiji Saitoh
Keyword(s):  
Domain Wall ◽  
Spin Waves ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Snell’S Law ◽  
Snell's Law

Snell's law: Optimum pathway analysis

1977 ◽  
Vol 21 (6) ◽  
pp. 464-466 ◽  
Author(s):  
Robert J. Schechter
Keyword(s):  
Pathway Analysis ◽  
Snell’S Law ◽  
Snell's Law
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