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晶格常数对光子晶体量子阱透射谱的影响
  • ISSN号:1007-2276
  • 期刊名称:《红外与激光工程》
  • 时间:0
  • 分类:O411.9[理学—理论物理;理学—物理] O431[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构:[1]河池学院物理与电子工程系,广西宜州546300
  • 相关基金:国家自然科学基金(51161003,50661001);广西自然科学基金(2011GxNSFA018145);广西教育厅科研(201012MS206);广西高校优秀人才资助计划项目(桂教人[2011]40号)
作者: 苏安[1]
中文摘要:

为设计高品质光学滤波器、光开关等量子光学器件,用传输矩阵法理论研究晶格常数对一维光量子阱(AB)5(CD)2(BA)5透射谱的影响,结果发现:当A、B介质层的晶格常数偶数倍增加时,禁带中心频率处的窄透射峰变成宽透射带,透射带两侧对称分布着2条透射率为100%的窄透射峰;当A介质层的晶格常数奇数倍增加时,禁带中心频率处出现透射率为100%单务窄透射峰;当B介质层的晶格常数奇数倍增加,或D介质层的晶格常数按整数倍增加时,禁带中心频率处恒定出现3条透射率为100%的窄透射峰,且三者之间距离随着B、D介质层晶格常数的增大而逐步向禁带中心靠拢;当D介质层晶格常数按整数增加时,不仅禁带中心频率处恒定出现3条透射率为100%的窄带透射峰,同时两侧对称出现与晶格常数倍数密切相关的双透射峰结构,且双透射峰的透射率随晶格常数倍数增大而增高。这些特性可实现可调通道光滤波和光开关功能,并为实验制备工作提供理论指导。

英文摘要:

To design high-quality optical devices, such as filters and switches, the effect of lattice constant on the transmission spectra of one-dimensional optical crystal quantum well(AB)s(CD)z(BA)~ was studied with transfer matrix method. The result shows that when the lattice constants of layer A and layer B separately increase with even times, the narrow transmission peaks at center frequency of band gap turns into wide transmission band, both sides of which are symmetrically distributed with two narrow transmission peaks of 100% transmittance; when lattice constants of layer A increases with odd times, a single transmission peak of 100% transmittance appears at the center frequency; when the lattice constants of layer B increases with odd times or that of layer D increases with integral multiple, three transmission peaks of 100% transmittance constantly turn up at the center frequency of band gap, and the three ones draw closer to the center of band gap as lattice constants of layer B and D are increasing; when lattice constant of layer D increases with integral multiple, three transmission peaks of 100% transmittance constantly present at the center frequency of band gap, besides, double-transmission-peak structure, which is closely related to the lattice constants,symmetrically appears on its two sides. Meanwhile, the transmittances of each double-transmission-peak enlarge with the integral multiple of lattice constants increasing. All these features can be applied to adjustable-channel optical filtering and switching, and can offer theoretical direction for experiment preparation.

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期刊信息
  • 《红外与激光工程》
  • 中国科技核心期刊
  • 主管单位:中国航天科工集团
  • 主办单位:天津津航技术物理研究所
  • 主编:张锋
  • 地址:天津市空港经济区中环西路58号
  • 邮编:300308
  • 邮箱:irla@csoe.org.cn
  • 电话:022-58168883 /4/5
  • 国际标准刊号:ISSN:1007-2276
  • 国内统一刊号:ISSN:12-1261/TN
  • 邮发代号:6-133
  • 获奖情况:
  • 1996年获航天系统第五次科技期刊评比三等奖,1998年获航天系统第六次科技期刊评比二等奖,1997-2001年在天津市科技期刊评估中被评为一级期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:17466