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硅光子学中的光源问题

硅光子学中的光源问题. 冉广照 rangz@pku.edu.cn 北京大学物理学院 介 观物理国家重点实验室 2012.07. 04. SPP Excitation. Other?. Outline. Surface Plasmons Electrical Surface Plasmon Plasmon Laser. 直接电激发示意图例. A Pioneering work. Nat Mater 9, 21 ( 2010). D. M. Koller et al Nat. Photonics 2 , 684, 2008. 真空中偶极子辐射.

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硅光子学中的光源问题

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  1. 硅光子学中的光源问题 冉广照 rangz@pku.edu.cn 北京大学物理学院 介观物理国家重点实验室 2012.07. 04

  2. SPP Excitation Other?

  3. Outline • Surface Plasmons • Electrical Surface Plasmon • Plasmon Laser

  4. 直接电激发示意图例

  5. A Pioneering work Nat Mater 9, 21 ( 2010) • D. M. Koller et al Nat. Photonics 2, 684,2008.

  6. 真空中偶极子辐射 偶极子辐射的空间分布 近场区，过渡区，远场 偶极子的阻尼受迫振动 空间中的TM波

  7. 非自由空间偶极子模型 z dipole 1 d  2

  8. 有界面时的偶极子辐射场 当然也可写出K空间的分布

  9. k 空间偶极子功率谱的推导 Power dissipated by the dipole 振荡偶极子引起的电流

  10. k 空间电场表示及电场积分形式 -kz2-q12 Dipole 所在介质1中 把kz积分掉

  11. k 空间偶极子功率谱

  12. 均匀介质中偶极子k 空间功率谱 kz k k// 1 Free space 横轴坐标归一化

  13. 金属界面附近的偶极子 z dipole 考虑到金属界面的反射： d  1 2 Ag 原电场 反射场 k// p

  14. 金属界面附近的偶极子 依据各种模式的波矢的平行分量的大小

  15. 金属界面附近的偶极子 z dipole d x 1 2 Ag

  16. 金属上面有介质薄膜的情况 金属上面有介质薄膜的情况

  17. Superstrate mirror θ ki=kz+k// k//, Region 3 rs13, rp13 t Region 1 AlQ b rs12, rp12 Region 2 Substrate mirror 结构中的发光体 J. Lightwave Techn. 17 2170 (1999)

  18. M2 M1 For TE wave, (s-polarized) ; for TM wave,(p-polarized, p is replaced by q. Reflectivity/transmission coefficient • Characteristic matrix of an optical film Born & Wolf, Principles of Optics

  19. Power dissipation spectrum • I(k//) ki=nik0; J. Lightwave Techn. 17 2170 (1999)

  20. SPP DBR Gl Air Power dissipation spectrum b， 发光分子辐射功率 b0,发光体在自由空间的辐射功率 q,发光分子的辐射复合效率 k//面内波矢分量 I(k//)对应于k//的功率密度 J. Lightwave Techn. 17 2170 (1999)

  21. 应用 调控自发辐射，优化器件结构 设计SPP 发光管 和 SPP激光

  22. 结构对能量耗散谱的影响

  23. Surface plasmon –enhanced PL of nano-Si

  24. Surface plasmon –enhanced EL 增强3倍

  25. Electrical Excitation of Confined SPP in Metallic Slot Waveguides couple light emitted by the LED directly into waveguidedplasmon modes. Pol, Decay, Spectra Nano Letters10，1429 (2010)

  26. Gain-assisted propagation of SPP via electrically pumped quantum wells (a) InGaAsP QW controlled SPP waveguides (b) Calculated material gain at around 1:55 μm of three-layer InGaAsP QWs for different carrier densities OPTICS LETTERS 35,3075(2010)

  27. OLED as Electric SPP Source/WG Surface Plasmon Polariton (SPP) x (TM) Au organic z silicon y (TE) SPP Source WG Si-OLED is naturally a SPP source and waveguide (WG) waveguide waveguide source p-Si / NPB 60 nm / CBP: Irpiq3 45 nm / Bphen:Cs2CO3 15 nm /Sm/Au

  28. Some Pioneering work Organic plasmonic diode D. M. Koller et al Nat. Photonics 2, 684,2008.

  29. Our Work on Si-organic SPP source Ordinary OLEDwith Si anode Edge emission Polarized Electroluminescence (EL) observed p-Si / NPB 60 nm / CBP: Irpiq3 45 nm / Bphen:Cs2CO3 15 nm /Sm 5 nm /Au 30 nm Ran, et,al, Appl. Phys. Lett. 97, 233304 (2010)

  30. Surface Vs Edge (emission) x (TM) Surface-emission Edge-Emission z y (TE) Au-cathode OLED on Si y x™ z YTE

  31. Si-OLED as Electric SPP Source/WG air SPP org Spontaneous Power dissipation spectra SPP source

  32. Ag-cathode (Si-OLED) TM field TE field

  33. Ag-QW SchottkyPlasmonic diode

  34. OPTICS EXPRESS 20 , 8710 (2012)

  35. Next work High efficiency and suitable wavelength SPP Laser

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