PLASMONICS SUBMITTED BY AKHILA VASANTH B S 3

PLASMONICS SUBMITTED BY AKHILA VASANTH. B S 3 EC ROLLNO: 8

INTRODUCTION • Currently communication systems are based on either electronics or photonics • However, for transporting huge amount of data at high speed along with miniaturisation of both these technologies are facing limitation • So researchers are pioneering a new technology called “PLASMONICS”

WHAT IS PLASMONICS ? • Plasmonics is the study of interaction of light and metal under precise circumstances. • Plasmonics is thought to embody the strongest points of both optical and electronics data transfer, allowing the fast transmission of information over very small wires. • The term “PLASMONICS” is derived from plasmons.

PLASMONS • Plasmons are density waves of electrons, created when light hits the surface of metal under precise circumstances. • This density waves are generated at optical frequencies, and are very small and rapid. • They can theoritically encode a lot of information, more than what ‘s possible for conventional electrons. • Plasmons are the nano structured metals.

NEED OF PLASMONICS • Optical fibres now span the entire global, guiding light signals that convey volumnious streams of voice command vast amount of data • Photonic device • Electronics circuits • Photons and electrons • Mismatched capacities and sizes

• Researches are can cobble them together, but a single technology that has the capacity of photonics and the smallest of electrons with the best bridge of all researchers are pioneering such technology “PLASMONICS” • PLASMONICS breaks that fact : The fact that light interacts with nano structures overcome the belief held for more than a century that the light waves could’nt interact with anything smaller than their own wavelengths.

COMMUNICATION WITH PLASMONICS • Huge control over EM waves at nano-scale. • Surface plasmons generated at the metal dielectric interface cloud allow plasmons to travel along nano-scale wires. • Inorder to fabricate effective plamons devices nano structure material must be used.

APPLICATIONS • • Graphene Plasmonic solar cell Plasmonic LED Plasmonsters- A faster chip • • Invisibility cloak- let’s fun with mr. India Plasmonics therapy- cure of cancer Quantum dot plasmonics Plasmon printing structure Graphene

FUTURE DIRECTIONS • To develop new optical components and systems that are of same size as today smallest integrated chips. • Plasmon sources, detectors, switches and wires as well splitters can be developed. • Molecular switches • All frequencies of the visibile light must be covered.

Challenges remaining • The dream of making all – plasmonics devices requires further research. • Inorder to realise advanced active circuits, there is a need for active modulator and components operating at ultra- high bandwidth and low power utilisation.

CONCLUSION • Plasmonics will derive us to a work of high speed communication network, where we can convey voluminous stream of voice and vast amount of data. Plasmonics is the great boon of nano technology.