Quantum 3D finite-difference-time-domain (Q-FDTD) analysis of InGaAs-GaAsP quantum-dot nanostructures

Yik-Khoon Ee; Yush P. Gupta; Ronald A. Arif; Nelson Tansu

doi:10.1117/12.700775

22 March 2007 Quantum 3D finite-difference-time-domain (Q-FDTD) analysis of InGaAs-GaAsP quantum-dot nanostructures

Yik-Khoon Ee, Yush P. Gupta, Ronald A. Arif, Nelson Tansu

Proceedings Volume 6468, Physics and Simulation of Optoelectronic Devices XV; 64681D (2007) https://doi.org/10.1117/12.700775
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Here we present a full 3-D numerical model based on Quantum-Finite-Difference-Time-Domain (Q-FDTD) method, with Perfectly Matched Layer (PML) boundary condition, as a versatile tool to accurately analyze 3-D QD nanostructure with arbitrary shape. Model solid theory has been utilized to determine the 3-D band lineup of the QD heterostructure. The effects of strain distribution, and effective mass distribution on the band structure of the QD nanostructure are also taken into account in the model. The Q-FDTD computation has been applied for analyzing MOCVD-grown InGaAs QDs with GaAs_1-xP_x barriers on GaAs. The Q-FDTD simulation, using the QDs shape measured by TEM and AFM, shows good agreement with the experimental results obtained from the as-grown InGaAs QDs with GaAs_1-xP_x barriers.

Citation Download Citation

Yik-Khoon Ee, Yush P. Gupta, Ronald A. Arif, and Nelson Tansu "Quantum 3D finite-difference-time-domain (Q-FDTD) analysis of InGaAs-GaAsP quantum-dot nanostructures", Proc. SPIE 6468, Physics and Simulation of Optoelectronic Devices XV, 64681D (22 March 2007); https://doi.org/10.1117/12.700775

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