Absorption loss influence on optical characteristics of multilayer distributed Bragg reflector: wavelength-scale analysis by the method of single expression

被引:23
|
作者
Baghdasaryan, H. V. [1 ]
Knyazyan, T. M. [1 ]
Baghdasaryan, T. H. [2 ]
Witzigmann, B. [3 ]
Roemer, F. [3 ]
机构
[1] State Engn Univ Armenia, Fiber Opt Commun Lab, Yerevan 0009, Armenia
[2] Yerevan State Univ, Dept Opt, Yerevan 0025, Armenia
[3] Univ Kassel, Computat Elect & Photon Grp, D-34121 Kassel, Germany
基金
瑞士国家科学基金会;
关键词
quarter-wave layers; lossy DBR; transparent DBR; method of single expression (MSE); wavelength-scale analysis; boundary problem solution; optical field distribution; MATRIX-METHOD; SIMULATION; LIGHT; PHOTODETECTORS; GRATINGS; LASER;
D O I
10.2478/s11772-010-0049-0
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Electrodynamical model of a classical distributed Bragg reflector (DBR) consisting of alternating quarter-wave layers of high and low permittivity is considered at the plane wave normal incidence. Reflective characteristics of DBR possessing absorption loss in constituting layers are analysed via correct wavelength-scale boundary problem solution by the method of single expression (MSE). Analysis of optical field and power flow density distributions within the lossy DBR structures explained the peculiarities of their reflective characteristics. Optimal configurations of lossless and lossy DBRs are revealed. Specific DBR structures possessing full transparency at definite number of layers are also analysed.
引用
收藏
页码:438 / 445
页数:8
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