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Surface Plasmon Hybridization of Whispering Gallery Mode Microdisk Laser<br />Oka Kurniawan<br />Iftikhar Ahmed<br />Er Pi...
Plasmonics promises both high speed and miniaturization<br />2<br />NanoPlasmonics (A*STAR-SERC)<br />
Research on Plasmonics source is essential<br />3<br />kx<br />light cone    = c k<br />w<br />k<br />
Previous works have shown progress though having low intensity<br />4<br />Akimov, A. V., A. Mukherjee, C. L. Yu, D. E. Ch...
Metal-insulator-metal structure can excite surface plasmon and coupled directly to waveguide<br />5<br />Walters, R. J., R...
We use microdisk laser cavity structure to obtain high intensity output<br />6<br />metal<br />Radius = 1 µm<br />Layer th...
Finite-difference time domain method with realistic solid-state model and Lorentz-Drude model is used for simulation<br />...
Conventional microdisk shows whispering gallery mode<br />8<br />Total electric field at the centre plane of the microdisk...
Attaching metal layers hybridize the whispering gallery mode with surface plasmonpolariton mode<br />9<br />Total electric...
We can couple the plasmonic source to an MIM waveguide with high efficiency<br />10<br />Metal<br />Metal<br />Semiconduct...
We observed the surface plasmonpolariton wave traveling along the waveguide and the coupling efficiency is about 60%<br />...
Summary<br />12<br />
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Surface Plasmon Hybridization of Whispering Gallery Mode Microdisk Laser

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Surface Plasmon Hybridization of Whispering Gallery Mode Microdisk Laser

  1. 1. Surface Plasmon Hybridization of Whispering Gallery Mode Microdisk Laser<br />Oka Kurniawan<br />Iftikhar Ahmed<br />Er Ping Li<br />Photonics Global<br />14th to 16th December 2010<br />Singapore<br />
  2. 2. Plasmonics promises both high speed and miniaturization<br />2<br />NanoPlasmonics (A*STAR-SERC)<br />
  3. 3. Research on Plasmonics source is essential<br />3<br />kx<br />light cone  = c k<br />w<br />k<br />
  4. 4. Previous works have shown progress though having low intensity<br />4<br />Akimov, A. V., A. Mukherjee, C. L. Yu, D. E. Chang, A. S. Zibrov, P. R. Hemmer, H. Park, and M. D. Lukin. “Generation of single optical plasmons in metallic nanowires coupled to quantum dots.” Nature 450, no. 7168 (November 2007): 402-406. <br />KollerD.M. “Organic plasmon-emitting diode.” Nat Photon 2, no. 11 (November 2008): 684-687.<br />
  5. 5. Metal-insulator-metal structure can excite surface plasmon and coupled directly to waveguide<br />5<br />Walters, R. J., R. V. A. van Loon, I. Brunets, J. Schmitz, and A. Polman. “A silicon-based electrical source of surface plasmonpolaritons.” Nat Mater 9, no. 1 (January 2010): 21-25. <br />
  6. 6. We use microdisk laser cavity structure to obtain high intensity output<br />6<br />metal<br />Radius = 1 µm<br />Layer thicknesses = 120 nm<br />semiconductor<br />metal<br />MSM<br />source<br />MIM<br />waveguide<br />MIM<br />circuits<br />
  7. 7. Finite-difference time domain method with realistic solid-state model and Lorentz-Drude model is used for simulation<br />7<br />Multi-electron multi-level model for modeling electron dynamic in semiconductor. The model can model stimulated emission in laser.<br />
  8. 8. Conventional microdisk shows whispering gallery mode<br />8<br />Total electric field at the centre plane of the microdisk<br />Electric field peak intensity at 1.47 µm.<br />
  9. 9. Attaching metal layers hybridize the whispering gallery mode with surface plasmonpolariton mode<br />9<br />Total electric field at middle plane of the plasmonicmicrodisk.<br />Comparison of whispering gallery mode and surface plasmonpolariton mode.<br />Electric field enhancement is about 20,000 times at 1.47 µm.<br />
  10. 10. We can couple the plasmonic source to an MIM waveguide with high efficiency<br />10<br />Metal<br />Metal<br />Semiconductor<br />Insulator<br />Metal<br />Metal<br />Gap = 20 nm<br />Side view<br />
  11. 11. We observed the surface plasmonpolariton wave traveling along the waveguide and the coupling efficiency is about 60%<br />11<br />Normalized electric field at the middle of the plane.<br />The intensity at the waveguide is 60% of the microdisk.<br />
  12. 12. Summary<br />12<br />

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