Block diagram modeling of quantum laser sources

Mahmoud, Imbaby I.; El_Tokhy, Mohamed S.; Mashade, Mohamed B. El

doi:10.1016/j.optlastec.2009.09.009

Cited by 6 publications

(6 citation statements)

References 22 publications

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“…2 and 3) self−consistently, we need to attain N i which can be fined from the laser rate equations [8,16] …”

Section: Simulation and Theoretical Modelmentioning

confidence: 99%

“…The performance of QCLs, how− ever, is fundamentally limited owing to continuous elec− tronic spectrum in quantum wells (QWs), which leads to fast depletion of the upper laser level by means of longitudi− nal optical phonon emission, as well as high optical loss and strong heating arising from free−carrier absorption. These fundamental limitations can, in principle, be avoided if all carriers in a cascade structure are confined in all three di− mensions [8].…”

Section: Introductionmentioning

confidence: 99%

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Modelling of GaN quantum dot terahertz cascade laser

Asgari

Khorrami

2013

Opto-Electronics Review

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In this paper GaN based spherical quantum dot cascade lasers has been modelled, where the generation of the terahertz waves are obtained. The Schrödinger, Poisson, and the laser rate equations have been solved self-consistently including all dominant physical effects such as piezoelectric and spontaneous polarization in nitride-based QDs and the effects of the temperature. The exact value of the energy levels, the wavefunctions, the lifetimes of electron levels, and the lasing frequency are calculated. Also the laser parameters such as the optical gain, the output power and the threshold current density have been calculated at different temperatures and applied electric fields.

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“…2 and 3) self−consistently, we need to attain N i which can be fined from the laser rate equations [8,16] …”

Section: Simulation and Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling of GaN quantum dot terahertz cascade laser

Asgari

Khorrami

2013

Opto-Electronics Review

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“…The following are some possible reasons for the widespread popularity of the VisSim simulation [7][8][9][10] 1. Most complex, real-world systems with stochastic elements cannot be accurately described by a mathematical model which can be evaluated analytically.…”

Section: Vissim Simulatormentioning

confidence: 99%

Block Diagram Programming of Quantum Dot Sources and Infrared Photodetectors for Gamma Radiation Detection Through VisSim

El_Tokhy¹,

Mahmoud²,

Konber³

2012

State-of-the-Art of Quantum Dot System Fabrications

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“…The following are some possible reasons for the widespread popularity of the VisSim simulation [7][8][9][10]:…”

Section: Vissim Simulatormentioning

confidence: 99%

“…They show the epitaxial Si capping layer formed with the same crystallographic orientation as those of Si ( 001) substrates and of the underlying QDs and substrates. To investigate the quantum size effect, we formed epitaxial Ge 0.85 Sn 0.15 QDs with various QD diameters d (7, 9, and 13 nm) under the epitaxail QD growth condition by changing the deposition amounts (5,8,and 14 ML) and covered these QDs with 60 nm Si capping layers. RHEED patterns of these Si capping layers indicated all Si capping layers were epitaxially grown.…”

Section: Optical Propertiesmentioning

confidence: 99%

State-of-the-Art of Quantum Dot System Fabrications

Al‐Ahmadi¹

2012

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Quantum dots are one of the most promising types of nanoparticles, which are exceptionally useful for variety of new applications because of their unique properties. This is a collaborative book sharing and providing the academic community with a base text that could serve as a reference in research by presenting up-to-date research work on the field of quantum dot systems. We are most grateful to all authors of the chapters for highlighting the important issue of the potential applications of quantum dot system with a high quality work of their research. We are especially thankful for the cooperation and support from InTech team who helped in publishing this book, in particular the publishing process manager of this book, Ms. Molly Kaliman for her hard effort and patience during the process of publishing the book.

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Block diagram modeling of quantum laser sources

Cited by 6 publications

References 22 publications

Modelling of GaN quantum dot terahertz cascade laser

Modelling of GaN quantum dot terahertz cascade laser

Block Diagram Programming of Quantum Dot Sources and Infrared Photodetectors for Gamma Radiation Detection Through VisSim

State-of-the-Art of Quantum Dot System Fabrications

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