激光杂志
激光雜誌
격광잡지
LASER JOURNAL
2014年
6期
4-6
,共3页
光子晶体%传输矩阵%各向异性介质%缺陷模%禁带
光子晶體%傳輸矩陣%各嚮異性介質%缺陷模%禁帶
광자정체%전수구진%각향이성개질%결함모%금대
Photonic crystal%transmission matrix%anisotropic media%defect mode and forbidden band
本文提出了一种非对称一维各向异性掺杂光子晶体，通过传输矩阵法研究了这种新型光子晶体的光学特性，通过数值模拟得出：光通过该结构光子晶体后TE波和TM波缺陷模的透过率及中心波长位置随缺陷层介质的光学厚度、缺陷层两侧周期数的非对称性的变化规律，两种偏振光波能完全分开，缺陷层介质的光学厚度及掺杂层两侧的周期数层差越大，缺陷模的透过率越小，当光学厚度及层差达到某一极限值时，将产生完全光子禁带，这是对称结构光子晶体所不具备的光学特性，其光学特性将为光子器件的转换制作及应用提供理论依据。
本文提齣瞭一種非對稱一維各嚮異性摻雜光子晶體，通過傳輸矩陣法研究瞭這種新型光子晶體的光學特性，通過數值模擬得齣：光通過該結構光子晶體後TE波和TM波缺陷模的透過率及中心波長位置隨缺陷層介質的光學厚度、缺陷層兩側週期數的非對稱性的變化規律，兩種偏振光波能完全分開，缺陷層介質的光學厚度及摻雜層兩側的週期數層差越大，缺陷模的透過率越小，噹光學厚度及層差達到某一極限值時，將產生完全光子禁帶，這是對稱結構光子晶體所不具備的光學特性，其光學特性將為光子器件的轉換製作及應用提供理論依據。
본문제출료일충비대칭일유각향이성참잡광자정체，통과전수구진법연구료저충신형광자정체적광학특성，통과수치모의득출：광통과해결구광자정체후TE파화TM파결함모적투과솔급중심파장위치수결함층개질적광학후도、결함층량측주기수적비대칭성적변화규률，량충편진광파능완전분개，결함층개질적광학후도급참잡층량측적주기수층차월대，결함모적투과솔월소，당광학후도급층차체도모일겁한치시，장산생완전광자금대，저시대칭결구광자정체소불구비적광학특성，기광학특성장위광자기건적전환제작급응용제공이론의거。
The paper proposed a one-dimensional structure of asymmetrical anisotropic mingled photonic crys-tal. Optical characteristics of the new type of photonic crystal are studied herein with transmission matrix method. The theory has been deduced through numerical simulation that transmittance of light through photonic crystal rear TE wave and TM wave defect mode of the structure and asymmetrical varying patten of central wavelength location varying with optical thickness of defect layer media, periodicity at two sides of defect layer;two type of polarization optical wave can be completely separated;the larger optical thickness of defect layer media and layer difference of periodicity at two sides of mingling layer are, the smaller transmittance of defect mode will be;once optical thick-ness and layer difference reach a certain limit value, full photonic bandgap will be produced. This is the optical char-acteristic which does not exist in photonic crystal of symmetrical structure. Its optical characteristics will lay founda-tion for transformation production and application of photonic device.
