Reflection of light

Contents:
The Aim of my presentation
Historical information
Negative refraction
Practical application
Conclusion

The Aim of my presentation:
Tell you about the negative refraction of light
Explain the practical application of this phenomenon

Historical Information
The first mention of metamaterials with negative refractive index appeared in the article of the Soviet physicist Victor Veselago published in the journal "Advances of Physical Sciences" in 1968.

1
Victor Veselago, Soviet Physicist

Advances in Physical Sciences

Negative refraction
ε < 0
µ < 0
ε - permittivity
µ - permeability

Normal material

Metamaterial

Practical application

The structure of metamaterial

Cloak of invisibility

Conclusion
In conclusion I would like to say that this trend is developing very fast and is already being used for military purposes. Likely this phenomenon will play a big role in our future.

List of information sources :
http://en.wikipedia.org/wiki/Metamaterial#Negative_refractive_index
http://www.nanonewsnet.ru/articles/2010/kak-obnaruzhit-plashch-nevidimku
http://wn.com/Metamaterial
http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html
https://translate.google.ru/