multiple quantum well regions
MBE grown GaAsBi/GaAs multiple quantum well structures : structural and optical characterization
... GaAsBi/GaAs multiple quantum well p–i–n diodes were grown by molecular beam ...that multiple quantum well regions with clearly de fi ned well periodicities were ...
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The Effects of Strained Multiple Quantum Well on the Chirped DFB-SOA All Optical Flip-Flop
... quasi static condition. In order to characterize the device behavior, we need to calculate the ratio of the output power to the small signal input power, known as the optical transmittivity, as a function of the ...
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Double-barrier Superlattice Infrared Photodetector Integrated with Multiple Quantum-Well Infrared Photodetector to Improve Performance
... In this paper, we utilize superlattice (SL) and multiple quantum well (MQW) as active regions to achieve multi-color detection. The thick and graded barriers are used for photoelectrons to ...
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A study of distributed Bragg reflector stacks and quantum wells for 1.55 micron Fabry-Perot modulators
... Fabry-Pérot multiple quantum well reflection modulators grown monolithically on indium phosphide substrates using III-V ...n regions, and a bias tuneable absorber is used in the intrinsic ...
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Calculating Transmittivity of Photonic Multiple Quantum Well for S Polarized Incidence
... alternating regions of higher and lower dielectric constants where localization of propagating electromagnetic wave can be obtained by thicknesses and refractive indices of the ...[12], quantum information ...
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Cathodoluminescence studies of chevron features in semi-polar (11-22) InGaN/GaN multiple quantum well structures
... etching of GaN microrods in a regular array. GaN over- growth begins from the sidewalls of the microrods, along the [0001] direction and the ½11 20 direction. Growth continues in these directions until they coalesce, and ...
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Finite-Difference Time-Domain Simulations on Overgrown InGaN/GaN Multiple Quantum Well (MQW) Light Emitting Diode (LED).
... computational requirements. MEEP also includes some unusual features ranging from calculat- ing the eigen-mode frequencies for a periodic structure to advanced signal processing techniques for analyzing the resonant ...
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Aperiodic and Asymmetric Multiple Quantum Well Photonic Devices: A Novel Transfer Matrix Based Model
... the well are different from those in the barrier as they are of different ...and well widths in the second structure are different from one ...the well and barrier widths are all unequal, the ...
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Efficiency of True-Green Light Emitting Diodes: Non-Uniformity and Temperature Effects
... of quantum well growth temperature on the recombination efficiency of InGaN/GaN multiple quantum wells that emit in the green and blue spectral ...
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Graphene Electron States in a Quantum Well
... studied quantum electron states in free-standing graphene monolayer with a rectangular quantum ...the quantum well, may exist in such structure if the QW potential has enough ...peculiar ...
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Quantum well intermixing by ion implantation
... cKcqcKcKcqcKc cKcqcKcKcqcKc cKcqcKcKcqcKc cKcqcKcKcqcKc cKcqcKcKcqcKc.. cKcqcKcKc cKcqcKcKc cKcqcKcKc cKcqcKcKc cKcqcKcKc.[r] ...
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Research on Some New Results Arising from Multiple q-Calculus
... 2. Generalizations of some elementary functions belonging to q-calculus As it has been q-calculus, there doesn’t exist a general chain rule for multiple q-derivatives. That is, if we consider the function f(u(x)), ...
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Theory of terahertz intervalence band polaritons and antipolaritons
... The work presented in this thesis is a theoretical investigation of the interaction of terahertz (THz) radiation with intersubband excitations in micro cavities lead ing to THz polaritons and antipolaritons. The ...
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Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light emitting diodes
... Another way to achieve high efficiency in OLEDs is to confine excitons inside the EML using the multiple quantum well [MQW] structure [7]. Only a few reports concerning the MQW structure with good ...
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Physical model of quantum-well infrared photodetectors
... fully quantum mechanical model for electron transport in quantum well infrared photodetectors is presented, based on a self-consistent solution of the coupled rate ...
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Study of GaN-based Materials for Light-emitting Applications
... Speaking of Europeans, I would like to extend my gratitude to Trevor Grantham and Matt Benham of Thomas Swan Scientific for assisting in the installation of my MOCVD equipment. Dr. Ken Hess, Thomas Swan’s stateside ...
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Observation of anomalous linear photogalvanic effect and its dependence on wavelength in undoped InGaAs/AlGaAs multiple quantum well
... and R is the resistance between the two electrodes. As shown in Figure 2a, Equation (5) fits well with the exper- imental data. The small deviation of experimental data from the fitting line might be attributed to ...
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Hitting statistics from quantum jumps
... of quantum trajectories in ...that quantum trajectories offer an efficient means of simulating quantum walks and have the advantage of providing a visualisation of the ...using quantum ...
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Enhancing the Efficacy of the EuroMed Partnership through intensified Iterations. EUMA Papers, Vol. 5, No.1 January 2008
... of well-functioning IOs lead to absolute gains 2 for all states who are members of the IO/regime, large and small, (though under sub-optimal conditions) and, as a result also effect more peaceful cooperation ...
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Modelling, assessment and applications of multiple quantum well optical absorption modulators
... The dom inant features at the band edge are transitions between the conduction and valence n = l subbands and their associated exdtons. Miller,D.A.B. et al. [1985] was the first to consider the changes in absorption ...
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