01-12-2012, 05:38 PM
PLASMONICS
[attachment=42145]
What is Plasmonics?
Plasmonics is the technology of transmitting light like waves along nanoscale wires
Principle of plasmonics:
A plasma oscillation is the collective longitudinal excitation of Conduction electron gas against background of fixed positive ions with plasma frequency.
NEED FOR PLASMONICS:
Optical consideration :
These days Optical Fibers span the globe guiding light signals that convey voluminous streams of voice and vast amount of data.
Photonic components such as fiber optic cables can carry a lot of data but are bulky compared to electronic circuits.
Plasmon Printing
Plasmon printing is a new approach to lithographic printing that could enable printing of deep sub wavelength feature using conventional photo resist and simple visible/UV light sources.
In the field of chemical sensing, plasmonics offers the possibility of new technologies that will allow doctors, anti-terror squads and environmental experts to detect chemicals in quantities as small as a single molecule.
A Faster Chip:
Slot wave guides could significantly boost the speed of the computer chips by rapidly tunneling large amount of data to the circuits that perform logical operations.
But because the frequency of an optical signal is so much higher than that of an electrical one—more than 400,000 GHz versus 60Hz – the Plasmonic circuit would be able to carry much more data.
Cancer Treatment:
NanoShells that consist of a thin layer of gold –typically about 10nm thick –deposited around the entire surface of a silica particle about 100nm across.
Exposed to electro magnetic waves generates electron oscillations in the gold shell;
Invisibility:
Exciting a Plasmonic structure with radiation that is close to the structure’s resonant frequency can make its refractive index equal to air’s , meaning that it would neither bend nor reflect light.
Conclusion
Plasmonics, the wonder of nanotechnology is an emerging subject of research presents a whole spectrum of new opportunities to build device components and systems for new architectures.
Technology is going to create tools that will allow us to conquer disease, make a much faster world, and even an invisible man.
[attachment=42145]
What is Plasmonics?
Plasmonics is the technology of transmitting light like waves along nanoscale wires
Principle of plasmonics:
A plasma oscillation is the collective longitudinal excitation of Conduction electron gas against background of fixed positive ions with plasma frequency.
NEED FOR PLASMONICS:
Optical consideration :
These days Optical Fibers span the globe guiding light signals that convey voluminous streams of voice and vast amount of data.
Photonic components such as fiber optic cables can carry a lot of data but are bulky compared to electronic circuits.
Plasmon Printing
Plasmon printing is a new approach to lithographic printing that could enable printing of deep sub wavelength feature using conventional photo resist and simple visible/UV light sources.
In the field of chemical sensing, plasmonics offers the possibility of new technologies that will allow doctors, anti-terror squads and environmental experts to detect chemicals in quantities as small as a single molecule.
A Faster Chip:
Slot wave guides could significantly boost the speed of the computer chips by rapidly tunneling large amount of data to the circuits that perform logical operations.
But because the frequency of an optical signal is so much higher than that of an electrical one—more than 400,000 GHz versus 60Hz – the Plasmonic circuit would be able to carry much more data.
Cancer Treatment:
NanoShells that consist of a thin layer of gold –typically about 10nm thick –deposited around the entire surface of a silica particle about 100nm across.
Exposed to electro magnetic waves generates electron oscillations in the gold shell;
Invisibility:
Exciting a Plasmonic structure with radiation that is close to the structure’s resonant frequency can make its refractive index equal to air’s , meaning that it would neither bend nor reflect light.
Conclusion
Plasmonics, the wonder of nanotechnology is an emerging subject of research presents a whole spectrum of new opportunities to build device components and systems for new architectures.
Technology is going to create tools that will allow us to conquer disease, make a much faster world, and even an invisible man.