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Vol.2 , No. 6, Publication Date: Jan. 21, 2016, Page: 116-121
 has been studied theoretically within unified transfer matrix approach. The characterisation of light-emitting one-dimensional photonic quasicrystals based on excitonic resonances is reported. The structures consist of GaAs/AlGaAs multiple quantum wells satisfying a Fibonacci sequence. The resulting band structure causes photons to become confined within the wells, where they occupy discrete quantized states. We have obtained an expression for the transmission coefficient of the Fibonacci series MQW nanostructures using analytical Transfer matrix method (ATMM) and found the resonance state within the photonic wells. These resonant states occur due to split pairs and coupling between degenerate states. The active photonic quasicrystals are good light emitters. The lack of periodicity in the Fibonacci series MQW results in resonant tunneling and strong emission. The resonant state describe here can be used to develop new types of optical devices, photonic- switching devices, detectors and optoelectronic devices.&picture=http://www.aascit.org/aascit/decorators/img/journal/909.jpg)
| [1] | Jatindranath Gain, Department of Physics, Derozio Memorial College (WBSU), Kolkata, India. |
Tunneling of electrons through the Fibonacci series multiple quantum wells (FMQWs) has been studied theoretically within unified transfer matrix approach. The characterisation of light-emitting one-dimensional photonic quasicrystals based on excitonic resonances is reported. The structures consist of GaAs/AlGaAs multiple quantum wells satisfying a Fibonacci sequence. The resulting band structure causes photons to become confined within the wells, where they occupy discrete quantized states. We have obtained an expression for the transmission coefficient of the Fibonacci series MQW nanostructures using analytical Transfer matrix method (ATMM) and found the resonance state within the photonic wells. These resonant states occur due to split pairs and coupling between degenerate states. The active photonic quasicrystals are good light emitters. The lack of periodicity in the Fibonacci series MQW results in resonant tunneling and strong emission. The resonant state describe here can be used to develop new types of optical devices, photonic- switching devices, detectors and optoelectronic devices.
Keywords
Multiple Quantum Wells, Transfer Matrix Method, Photonics Devices, Quantum Tunneling, Resonant Tunneling, Nanophotonics
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