Enhancement of Blue Light Emission Using Surface Plasmons Coupling With Quantum Wells

Abstract

Abstract-3-dimension finite-difference time-domain (FDTD) method is used to simulate the enhanced blue light emission of gallium nitride light emitting diode (GaN-LED) using the surface-plasmons (SPs) coupling with the quantum wells. The numerical simulation results demonstrate that when the silver film is coated on GaN-LED, the excited SPs play a key role in the enhanced blue light emission, and the enhancement depends on the geometries of GaN-LED and silver film. An enhancement factor is given to describe the enhancement effect of light emission. By changing the structure parameters of GaN-LED and silver film, the enhanced peak of the light emission in the visible region can be controlled. Under the optimal parameters, about 17 times enhancement at 460 nm can be obtained, and the enhancement effect is evidently demonstrated by the SPs field distribution.

Improved Surface Plasmonic Wave Propagation of a Prism Coupler through Optimal Grating Structure Design

“…Kretschmann-Raether configuration [2,4], another prism coupling system, is three-layered system consisting of the thin metal film sandwiched between the prism and dielectric material commonly employed in the spectrophotometer devices. Zhao et al [5] verified the effect of the thin silver film coating in the enhancement of blue light emission of gallium nitride light emitting diode using the surface plasmon effect.…”

A Compact Monopole Array with Increased Port Isolation

“…In the past years, the effect of mutual coupling has been studied intensively [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] and many mutual coupling compensation methods have been suggested [19][20][21][22][23][24][25][26][27][28][29][30]. In [19][20][21], decoupling is achieved by changing the geometry of the antenna.…”

A RESONANCE TUNABLE AND DURABLE LSPR NANO-PARTICLE SENSOR: AL₂O₃ CAPPED SILVER NANO-DISKS

“…Enhancement of the blue light emission from gallium nitride LEDs (GaN-LED) using the enhanced surface electric fields is another application, where silver metal-films are coated by n/p GaN-LED and quantum walls of the LED are in between [5].…”