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介电体超晶格的研究
引用本文:闵乃本,朱永元,祝世宁,陆亚林,陆延青,陈延峰,王振林,王慧田,何京良.介电体超晶格的研究[J].物理,2008,37(1):1-10.
作者姓名:闵乃本  朱永元  祝世宁  陆亚林  陆延青  陈延峰  王振林  王慧田  何京良
作者单位:南京大学固体微结构物理国家重点实验室,南京,210093
基金项目:科技部"攀登计划" , 国家重点基础研究发展计划(973计划) , 国家高技术研究发展计划(863计划) , 国家自然科学基金
摘    要:介电体超晶格是一种新型的有序微结构材料.它具有通常均质材料所不具有的独特优异性能,展现出重要的应用前景.文章介绍了南京大学研究组关于介电体超晶格研究所取得的进展,如将多个光参量过程集成于一块介电体超晶格之中获得了多波长激光同时输出,研制成超晶格全固态三基色激光器原型,在介电体超晶格中将拉曼散射强度增强到104-105倍,用超晶格研制的器件填补了体波超声器件从几百MHz到几千MHz的空白频段,发现了微波与超晶格振动的强烈耦合以及极化激元(polariton)的激发与传播等.

关 键 词:介电体超晶格  准周期超晶格  准位相匹配  全固态白光激光器  极化激元  介电体超晶格  研究  superlattices  传播  激发  polariton  极化激元  耦合  晶格振动  微波  发现  频段  超声  体波  器件  强度增强  拉曼散射  原型  激光器  三基色
收稿时间:2007-10-13
修稿时间:2007年10月13

Dielectric superlattices
MIN Nai-Ben,ZHU Yong-Yuan,ZHU Shi-Ning,LU Ya-Lin,LU Yan-Qing,CHEN Yan-Feng,WANG Zhen-Lin,WANG Hui-Tian,HE Jing-Liang.Dielectric superlattices[J].Physics,2008,37(1):1-10.
Authors:MIN Nai-Ben  ZHU Yong-Yuan  ZHU Shi-Ning  LU Ya-Lin  LU Yan-Qing  CHEN Yan-Feng  WANG Zhen-Lin  WANG Hui-Tian  HE Jing-Liang
Institution:MIN(MING) Nai-Ben,ZHU Yong-Yuan,ZHU Shi-Ning,LU Ya-Lin,LU Yan-Qing,CHEN Yan-Feng,WANG Zhen-Lin,WANG Hui-Tian,HE Jing-Liang
Abstract:A dielectric superlattice is a type of material with an ordered microstructure. A series of results in this field have been obtained by our research group in Nanjing University. We proposed the theory of multiple quasi-phase-matching (QPM), developed all-solid-state lasers operating at multi-frequencies as well as white-light lasers, discovered a QPM enhanced optical scattering effect, and a new mechanism for optical bistability. We have also studied piezoelectric ultrasonic excitation and prepared bulk prototype ultrasonic devices working at frequencies from several hundreds megahertz to a few gigahertz, discovered the strong coupling between superlattice vibrations and microwaves, and investigated the excitation and propagation of polaritons.
Keywords:dielectric superlattice  quasiperiodic superlattice  quasi-phase matching  all-solid-state white-lightlaser  acoustic superlattice  polariton
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