An equivalent circuit model for terahertz quantum cascade lasers：Modeling and experiments

Terahertz quantum cascade lasers（THz QCLs） emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the five-level rate equations to describe their characteristics. In order to illustrate the capability of the model, the steady and dynamic performances...

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Published inChinese physics B Vol. 24; no. 9; pp. 257 - 260
Main Author 姚辰 徐天鸿 万文坚 朱永浩 曹俊诚
Format Journal Article
LanguageEnglish
Published 01.09.2015
Subjects
Computer simulation
Design engineering
Design optimization
Equivalent circuits
Mathematical analysis
Mathematical models
Optimization
Quantum cascade lasers
太赫兹
实验
建模
数值计算方法
等效电路模型
系统级设计
速率方程
量子级联激光器
Online AccessGet full text
ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/24/9/094208

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Abstract Terahertz quantum cascade lasers（THz QCLs） emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the five-level rate equations to describe their characteristics. In order to illustrate the capability of the model, the steady and dynamic performances of the fabricated THz QCLs are simulated by the model.Compared to the sophisticated numerical methods, the presented model has advantages of fast calculation and good compatibility with circuit simulation for system-level designs and optimizations. The validity of the model is verified by the experimental and numerical results.
AbstractList Terahertz quantum cascade lasers（THz QCLs） emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the five-level rate equations to describe their characteristics. In order to illustrate the capability of the model, the steady and dynamic performances of the fabricated THz QCLs are simulated by the model.Compared to the sophisticated numerical methods, the presented model has advantages of fast calculation and good compatibility with circuit simulation for system-level designs and optimizations. The validity of the model is verified by the experimental and numerical results.
Terahertz quantum cascade lasers (THz QCLs) emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the five-level rate equations to describe their characteristics. In order to illustrate the capability of the model, the steady and dynamic performances of the fabricated THz QCLs are simulated by the model. Compared to the sophisticated numerical methods, the presented model has advantages of fast calculation and good compatibility with circuit simulation for system-level designs and optimizations. The validity of the model is verified by the experimental and numerical results.
Author 姚辰 徐天鸿 万文坚 朱永浩 曹俊诚
AuthorAffiliation Key Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
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Notes terahertz,quantum cascade laser,equivalent circuit model,five-level rate equations
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Terahertz quantum cascade lasers（THz QCLs） emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the five-level rate equations to describe their characteristics. In order to illustrate the capability of the model, the steady and dynamic performances of the fabricated THz QCLs are simulated by the model.Compared to the sophisticated numerical methods, the presented model has advantages of fast calculation and good compatibility with circuit simulation for system-level designs and optimizations. The validity of the model is verified by the experimental and numerical results.
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Snippet Terahertz quantum cascade lasers（THz QCLs） emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the...
Terahertz quantum cascade lasers (THz QCLs) emitted at 4.4 THz are fabricated and characterized. An equivalent circuit model is established based on the...
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SubjectTerms Computer simulation
Design engineering
Design optimization
Equivalent circuits
Mathematical analysis
Mathematical models
Optimization
Quantum cascade lasers
太赫兹
实验
建模
数值计算方法
等效电路模型
系统级设计
速率方程
量子级联激光器
Title An equivalent circuit model for terahertz quantum cascade lasers：Modeling and experiments
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