ENHANCEMENT OF BLUE LIGHT EMISSION USING SURFACE PLASMONS COUPLING WITH QUANTUM WELLS | Zendy

Jia Zhao | Zendy; Kang Li | Zendy; Fanmin Kong | Zendy; Du Liuge | Zendy

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ENHANCEMENT OF BLUE LIGHT EMISSION USING SURFACE PLASMONS COUPLING WITH QUANTUM WELLS

Author(s) -

Jia Zhao,

Kang Li,

Fanmin Kong,

Du Liuge

Publication year - 2010

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier10072906

Subject(s) - quantum well , surface plasmon , optoelectronics , plasmon , blue light , coupling (piping) , light emission , materials science , physics , optics , composite material , laser

dimension flnite-difierence 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) cou- pling with the quantum wells. The numerical simulation results demon- strate that when the silver fllm is coated on GaN-LED, the excited SPs play a key role in the enhanced blue light emission, and the en- hancement depends on the geometries of GaN-LED and silver fllm. An enhancement factor is given to describe the enhancement efiect of light emission. By changing the structure parameters of GaN-LED and sil- ver fllm, the enhanced peak of the light emission in the visible region can be controlled. Under the optimal parameters, about 17 times en- hancement at 460nm can be obtained, and the enhancement efiect is evidently demonstrated by the SPs fleld distribution.

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