Plasmonics: Vision for the Future
                     PLASMONICS: 
“VISION FOR 
THE FUTURE”
INTRODUCTION
Plasmonics is quickly becoming a dominant 
technology for the twenty-first century. The 
classic text by H. Raether appeared in 
1988, but the potential of surface plasmons 
laid dormant for a decade.
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RECOGNITION
It is now recognized that surface plasmons, which can 
be present on particulate, smooth, or corrugated 
metallic surfaces, have enormous potential in the fields 
of optical computing, novel optical devices, and more 
recentlybiological and medical research. 
These emerging applications are the result of the 
unique properties of surface plasmons, which are 
confined in a two-dimensional surface and can have 
dimensions considerably smaller than optical 
wavelengths.
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SURFACE 
PLASMONS
Surface plasmons can be, to a reasonable 
extent, controlled in two dimensions, trapping 
and transporting optical energy in nanoscale 
structures. At first glance this possibility 
seems similar to optical wavelengths. 
However, typical optical waveguides, in 
contrast to plasmonics devices, must be 
three-dimensional and have wavelength-size 
features.
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TWO-
DIMENSIONAL 
NATURE
The two-dimensional nature of plasmonic 
structures makes them compatible with 
modern lithographic methods used for 
preparation of integrated circuits.
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POTENTIAL
The potential of plasmonics in chemical 
and biological research is just now being 
realized. One early application is surface-
enhanced Raman scattering (SERS), the 
mechanism of which is still a subject of 
investigation
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APPLICATION
Another known application of plasmonics is 
surface plasmon resonance (SPR), which is 
used to study biomolecule binding 
reactions. SERS and SPR depend on the 
two extremes of metallic structures, 
random particles and a smooth surface.
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NANOFABRICATION 
TECHNOLOGIES
The applications and understanding of 
plasmonics are now being facilitated by 
modern nanofabrication technologies, 
which allows preparation of numerous 
metallic nanostructures, in particular 
regular patterns of particles, holes, or other 
features.
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INTERDISCIPLINARY 
SCIENCE 
Plasmonics is a highly interdisciplinary 
science that depends on the efforts of 
physicists, chemists, and biologists.
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SCOPE OF 
PLASMONICS 
The scope of plasmonics covers all aspects 
of the properties of free electrons 
oscillation in metals and the interactions of 
these plasmons with the surrounding 
environment.
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