1 / 30

Plasmon applications in PhC

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.

aya
Download Presentation

Plasmon applications in PhC

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Plasmon applications in PhC Metamaterials and superfocusing effects Daniele Masciarelli 25 July 2007

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

  3. 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

  4. 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

  5. 2. Plasmon coupling: Bulk Plasmons • E. J. Prucha, Handbook of optical constants of solids (1998) Daniele Masciarelli

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

  7. 2. Plasmon coupling: Surface Plasmons Daniele Masciarelli

  8. 2. Plasmon coupling: Surface Plasmons Daniele Masciarelli

  9. 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

  10. 3. How to exploit plasmon modes? CAN PLASMON MODES BE EXPLOITED? Daniele Masciarelli

  11. How to exploit plasmon modes? Daniele Masciarelli

  12. 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

  13. 3. How to exploit plasmon modes? Plasmons proprieties are geometry-dependent Daniele Masciarelli

  14. 4. Combining PhC with Plasmon WHAT HAPPEN COMBING PhC WITH PLASMONS? Daniele Masciarelli

  15. 4. Combining PhC with Plasmon Daniele Masciarelli

  16. 4. How to combine PhC with Plasmon METAMATERIAL Daniele Masciarelli

  17. 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

  18. 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

  19. 5. Metamaterials and their applications: superlens Daniele Masciarelli

  20. 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

  21. 5. Metamaterials and their applications: supertransmission Daniele Masciarelli

  22. 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

  23. 6. How to build a metamaterial Daniele Masciarelli

  24. 6. How to build a metamaterial Daniele Masciarelli

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

  26. 6. How to build a metamaterial Daniele Masciarelli

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

  28. 6. How to build a metamaterial Daniele Masciarelli

  29. 6. How to build a metamaterial Daniele Masciarelli

  30. Thanks for your kind attention!!! Question-time!!!

More Related