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Plasmon applications in PhC. Metamaterials and superfocusing effects. Daniele Masciarelli 25 July 2007. What are PLASMONS?. Coupled oscillations of charge carrier density and electromagnetic field (plasmon polariton) Solutions of Maxwell’s equation for metals.

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plasmon applications in phc

Plasmon applications in PhC

Metamaterials and superfocusing effects

Daniele Masciarelli

25 July 2007

what are plasmons
What are PLASMONS?
  • Coupled oscillations of charge carrier density and electromagnetic field (plasmon polariton)
  • Solutions of Maxwell’s equation for metals

Daniele Masciarelli

what are plasmons first evidences
What are PLASMONS? First evidences
  • Found solving Maxwell’s equations for telegraphic metal wires
    • J. Zenneck, Annalen der Physik, 23, 846 (1907)
    • A. Sommerfeld, Annalen der Physik, 28, 44 (1909)

Daniele Masciarelli

2 plasmon coupling bulk plasmons
2. Plasmon coupling: Bulk Plasmons
  • Bulk plasmon modes
  • Calculation of propagation constant for a metal (free charges)
  • Dynamic Drude-Sommerfeld model
    • P. Drude, Annalen der Physik, 1, 566 (1900)

Daniele Masciarelli

2 plasmon coupling bulk plasmons5
2. Plasmon coupling: Bulk Plasmons
  • E. J. Prucha, Handbook of optical constants of solids (1998)

Daniele Masciarelli

2 plasmon coupling surface plasmons
2. Plasmon coupling: Surface Plasmons
  • Surface plasmon modes
  • Solution of Maxwell’s equation for a dielectric/metal interface

Daniele Masciarelli

2 plasmon coupling surface plasmons9
2. Plasmon coupling: Surface Plasmons
  • They can be excited just using special configurations
    • A. Otto, Zeitschrift für Physik, 216, 398 (1968)
    • E. Kretschmann, Untersuchungen zur Anregung und Streuung von Oberflächenplasmaschwingungen an Silberschichten, Ph.D. thesis (1972)

Daniele Masciarelli

3 how to exploit plasmon modes
3. How to exploit plasmon modes?

CAN PLASMON MODES BE EXPLOITED?

Daniele Masciarelli

3 how to exploit plasmon modes12
3. How to exploit plasmon modes?
  • Lycurgus cup, 4th century AD (British Museum, London)
  • Particle plasmon modes: colors from embedded metal nanoparticles
    • Trasmitted light is red
    • Surface scattered light is green

Daniele Masciarelli

3 how to exploit plasmon modes13
3. How to exploit plasmon modes?

Plasmons proprieties are geometry-dependent

Daniele Masciarelli

4 combining phc with plasmon
4. Combining PhC with Plasmon

WHAT HAPPEN COMBING PhC WITH PLASMONS?

Daniele Masciarelli

4 how to combine phc with plasmon
4. How to combine PhC with Plasmon

METAMATERIAL

Daniele Masciarelli

5 metamaterials and their applications
5. Metamaterials and their applications
  • Metamaterial
    • From Greek metà (beyond) + Latin materia (material)
    • To-the-letter meaning: material that doesn’t exist in nature
    • Physics meaning: material with negative refractive index
  • V.G. Veselago, Sov. Phys.-Usp.10, 509 (1968)

Daniele Masciarelli

5 metamaterials and their applications superlens
5. Metamaterials and their applications: superlens
  • J.B. Pendry, D.R. Smith, The quest for the superlens, Sci Am (2006)
  • J.B. Pendry, Negative refraction makes a perfect lens, Phys Rev Lett (2000)
  • D.R. Smith, How to build a Superlens, Science (2005)

Daniele Masciarelli

5 metamaterials and their applications supertransmission
5. Metamaterials and their applications: supertransmission
  • Surface-Plasmon-Enhanced Optical Transmission through a silver grating
  • L. Lin, R. J. Blaikie, R. J. Reeves Progress In Electromagnetics Research Symposium (2005)

Daniele Masciarelli

6 how to build a metamaterial
6. How to build a metamaterial
  • Metamaterials can be built using periodic arrays
  • F.J. Garcia-Vidal, L. Martín-Moreno, J.B. Pendry, J. Opt. A (2005)

Daniele Masciarelli

6 how to build a metamaterial25
6. How to build a metamaterial
  • J. A. Porto, F. J. García-Vidal, J. B. Pendry , Phys Rev Lett (1999)

Daniele Masciarelli

6 how to build a metamaterial27
6. How to build a metamaterial
  • S. Linden et al., Costas M. Soukoulis, Science (2004)

Daniele Masciarelli