| 离子型声子晶体中的长波光学性质 |
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| 引用本文： | 陆延青,朱永元,陈延峰,祝世宁,闵乃本,冯一军. 离子型声子晶体中的长波光学性质[J]. 材料研究学报, 2001, 15(1): 65-68 |
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| 作者姓名： | 陆延青 朱永元 陈延峰 祝世宁 闵乃本 冯一军 |
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| 作者单位： | 1. 南京大学固体微结构物理国家重点实验室
2. 南京大学电子科学与工程系 |
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| 基金项目： | 八六三计划新材料领域资助项目!863－715－002－0090 |
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| 摘 要： | 提出了离子型声子晶体的概念，制备出一维离子型声子晶体材料，研究了一维离子型声子晶体中的超晶格振动与电磁波的耦合效应，将黄昆方程所预言的一系列长波光学行为，如：极化激元、红外吸收、介导异常等。从红外波段推广到微波波段，并得到了实验验证，预测了这种材料在微波与声学方面可能的应用。
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| 关 键 词： | 离子型声子晶体 介电体超晶格 耦合效应 超晶格振动 电磁波 长波光学性质 |
| 文章编号： | 1005-3093(2001)01-0065-04 |
| 修稿时间： | 2000-12-05 |
LONG-WAVELENGTH OPTICAL PROPERTIES OF AN IONIC-TYPE PHONONIC CRYSTAL |
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| LU Yanqing,ZHU Yongyuan,CHEN Yanfeng,ZHU Shining,MING Naiben. LONG-WAVELENGTH OPTICAL PROPERTIES OF AN IONIC-TYPE PHONONIC CRYSTAL[J]. Chinese Journal of Materials Research, 2001, 15(1): 65-68 |
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| Authors: | LU Yanqing ZHU Yongyuan CHEN Yanfeng ZHU Shining MING Naiben |
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| Abstract: | Concept of ionic-type phononic crystal (ITPC) was proposed. With one-dimensional ITPCs prepared by growth striation method, coupling between superlattice vibrations and the electromagnetic waves was studied. Various long-wavelength optical properties, such as polariton, microwave absorption and dielectric abnormality, were predicted theoretically and verified experimentally. Thus the long-wavelength optical properties, predicted by K.Huang in real ionic crystals. were extended from infrared to microwave band. The possible applications of ITPC in microwave and acoustic field were discussed. |
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| Keywords: | Ionic-type phononic crystal dielectric superlattice coupling effect |
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