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In this paper we propose an infrared photodetector, based on plasmonic antenna with gold back-reflector. We analyze near-field components of electrical field of metallic circular hole array plasmonic antenna and their contribution to infrared photodetector enhancement. The enhancement is based on reflection from back side of the structure which increase light trapping in the structure and leads to...
In this letter, we propose a new design for a multicolor InAs/GaAs quantum dot (QD) infrared photodetector based on metallic nanoslits array. The proposed device has an absorption coefficient of more than 50% for designed wavelengths in the infrared (IR) range. We analyze the absorption characteristics of the InAs/GaAs QDs affected by metallic nanoslits. Distributed Bragg reflector layers with a buried...
Using two dimensional FD method, we analyze the effects of photonic crystal parameters on threshold current in photonic crystal vertical cavity surface emitting laser. Results show that threshold current increases with PC holes diameter and decreases with pitch.
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