A brief introduction and description of what a Perfect Lens or Plasmonic Lens is and about the structure, uses and types of a Plasmonic Lens. Further Resources: 1. https://en.wikipedia.org/wiki/Plasmonic_lens 2. http://circuit.ucsd.edu/~zhaowei/Journals/NanoLetter_Zhaowei_SP_lens.pdf 3. https://www.intechopen.com/books/plasmonics-principles-and-applications/plasmonic-lenses

1. Perfect (Plasmonic) Lens
Week 14 Subjective Assignment-2 for AW
By Aditya Sengupta
Application Number- 91d2c89cee2011e99383378f7843f227
October 31, 2019
Amity Institute of Applied Sciences, Amity University, Noida
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2. Table of Contents
• Abstract
• Acknowledgment
• Introduction
• What is a Perfect Lens?
• Types
• Uses
CC BY-SA-NC
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3. Abstract
This Project Seeks to explore
the study of Plasmonic Lenses also known as Perfect Lenses and
how the Plasmonic Lenses are used extensively today for
development purposes in various industries. The development
and study of Plasmonic Lenses is a relatively recent subject area
of Plasmonics and the intention is to help the reader become
familiar with this area and to inspire to get to know more about
this very fundamentally important equipment and as to how it
works.
CC BY-SA-NC
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4. Acknowledgment
I wish to express my sincere gratitude to
Dr. Ajay Semalty, for his excellent guidance and help during the
entire duration of the ACADEMIC WRITING COURSE on
Swayam Learning Platform and for also providing students like
me and other professionals with the opportunity to work on such
an interesting topic and project and develop an Open Educational
Resource for the same.
CC BY-SA-NC
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5. Introduction
The aim is to understand
the working of a Plasmonic Lens also known as a Perfect Lens
made of Meta-materials.
Traditional Lenses
The resolution of an optical imaging system a microscope,
telescope, or camera can be limited by factors such as
imperfections in the lenses or misalignment. However, there is a
principal limit to the resolution of any optical system, due to the
physics of diffraction. This is called the Diffraction Limit.
For eg., in microscopes the maximum resolvable distance is
d =
λ
2n sin θ
(1)
CC BY-SA-NC
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6. What is a Perfect Lens?
A Plasmonic Lens
in nano-optics, it generally refers to a lens for surface plasmon
polaritons (SPPs), i.e. a device that redirects SPPs to converge
towards a single focal point. Because SPPs can have very small
wavelength, they can converge into a very small and very intense
spot, much smaller than the free space wavelength and the
diffraction limit.
Structure
A simple example of a plasmonic lens is a series of concentric
rings on a metal film. Any light that hits the film from free space
at a 90 degree angle, known as the normal, will get coupled into
a SPP (this part works like a diffraction grating coupler), and
that SPP will be heading towards the center of the circles, which
is the focal point. 6/13

7. Image
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8. Types of Plasmonic Lenses
On the basis of Metamaterials used
• Superlens
• Hyperlens
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9. Superlens
CC BY-SA-NC
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10. Hyperlens
CC BY-SA-NC
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11. Uses
• Heat-Assisted Magnetic Recording
• Microscopy
• Biophotonics
• Photolithography
• Molecular Sensors
• Solar cells, etc
CC BY-SA-NC
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12. References
Z. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and
X. Zhang, “Focusing surface plasmons with a plasmonic lens,”
Nano letters, vol. 5, no. 9, pp. 1726–1729, 2005.
A. Yanai and U. Levy, “The role of short and long range
surface plasmons for plasmonic focusing applications,” Optics
express, vol. 17, no. 16, pp. 14270–14280, 2009.
Y. Fu, J. Wang, and D. Zhang, “Plasmonic lenses,” in
Plasmonics-Principles and Applications, IntechOpen, 2012.
A. V. Zayats, I. I. Smolyaninov, and A. A. Maradudin,
“Nano-optics of surface plasmon polaritons,” Physics reports,
vol. 408, no. 3-4, pp. 131–314, 2005.
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13. THANK YOU
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