This document discusses the concept of invisibility and metamaterials. It contains 5 chapters that cover: 1) an introduction to light and optics concepts like reflection and refraction, 2) the evolution and workings of metamaterials which exhibit negative refraction, 3) how metamaterials are formed, 4) limitations of metamaterials and cloaking, and 5) applications and future prospects of invisibility including cloaking. The abstract outlines how metamaterials can be used to alter light properties to achieve invisibility cloaking. The document also includes acknowledgements, a list of figures, and references.

1. CONTENTS
Title
Page No:
Abstract i
List of Figures
ii
Chapter 1: Introduction
1.1 Light around us 1
1.2 Formation of colours on various objects 2
1.3 The concept of Reflection and Refraction 3
Chapter 2: The Dentonation of invisible materials.
2.1 The evolution of Meta materials 5
2.2 The action inside 7
Chapter 3: Formation of Meta materials 10
Chapter 4: Limitations and conclusion
4.1 Limitations of Meta materials and Cloaking 11
4.2 Conclusion 12
Chapter 5: Applications and future prospects
5.1 The art of Invisibility in the near future 13
5.2 Applications 14
5.3 The idea for the use of Invisible materials in the
real world 14
Reference and Bibliography 15

2. LIST OF FIGURES
S.NO FIG. NO: NAME OF FIGURE PAGE NO:
1. 1.1 Intensity of light 1
2. 1.2 Formation of VIBGYOR 2
3. 1.3 The concept of Reflection and Refraction 3
4. 2.1 Circular rings of Meta materials 7
5. 2.2 Passage of microwave light 9
6. 2.3 Alignment inside the Meta material 9
7. 5.1 The ideal invisible cloak 13
ABSTRACT
The art of Invisible Cloaking , this specifically means the art of making things invisible.This word of
fantasy “Invisible” is something wondrous which we see in movies.But due to rapid strides in science
and technology scientists have proven that its really possible in the life of mankind to make things
invisible.This seminar conscientiously revolves around the art of invisibility and the theory behind
making things invisible.
The second part of the seminar revolves around the origin and concept of special type of materials
called “Metamaterials” , which exhibit a typical property called “NEGATIVE REFRACTION”. This
seminar elucidates the working of metamaterials and their working in coherence with the possibilities
of maling things invisible ,the role played by them in altering the light properties and ends up with the

3. research follow-ups in the art of invisibility cloaking.The evolution and the formation of the Meta
materials is discussed along with its limitations and the concept of cloaking is discussed with its
limitations in the seminar.
ACKNOWLEDGEMENTS
I would like to express my sincere thanks to our principal Dr. PURNA CHANDRA RAO, for his kind
co-operation in this regard and making this seminar a successful one.
I would like to express my sincere thanks to Dr. K.V.MURALI MOHAN, HOD of Electronics and
communication department, Project co-coordinator Mr. Y. DAVID SOLOMON RAJU and our internal
guide Ms Y. JALAJAKSHI, Asst. professor Dept of ECE for their precious guidance and kind co-
operation at every stage of seminar .
I hereby, take the opportunity to thank one and all who have helped us in making this seminar a
successful one.
Last but not least: I express my sincere gratitude to Mrs.A.Vijaya Sarada Reddy, Secretary, HITS
group of institutions, for her continuous care towards our achievements.
ABHIMITHRA REDDY . K
(06C91A0403)