激光杂志
激光雜誌
격광잡지
LASER JOURNAL
2014年
8期
3-5
,共3页
光子晶体%传输矩阵法%隧穿效应%全反射
光子晶體%傳輸矩陣法%隧穿效應%全反射
광자정체%전수구진법%수천효응%전반사
Photonic Crystals%Transfer Matrix Method%Tunnelling effect%Total reflection
为了考察一维光子晶体(ODPCs)受抑全反射的特殊作用,本文设计出置于玻璃中的多周期的一维光子晶体。对于用氟化镁(MgF2)和硫化锌(ZnS)为基本材料制作的5周期的ODPCs,利用传输矩阵法对其可见光波透射率谱进行数值计算。结果发现,这种ODPCs对于可见光存在光子隧穿效应。这种效应使ODPCs对TE可见光波来说是干涉截止滤光片,而对于TM可见光波是透射的。减少基本周期内MgF2层的厚度,发现ODPCs对TE可见光波来说依然有光子禁带效应。对ODPCs的一个基本周期层改变为中心对称层,利用相同的方法进行可见光波透射率谱的数值计算发现,S1和S3结构的ODPCs的禁带内出现多个透射峰;而S2结构的ODPCs其作用不变。
為瞭攷察一維光子晶體(ODPCs)受抑全反射的特殊作用,本文設計齣置于玻璃中的多週期的一維光子晶體。對于用氟化鎂(MgF2)和硫化鋅(ZnS)為基本材料製作的5週期的ODPCs,利用傳輸矩陣法對其可見光波透射率譜進行數值計算。結果髮現,這種ODPCs對于可見光存在光子隧穿效應。這種效應使ODPCs對TE可見光波來說是榦涉截止濾光片,而對于TM可見光波是透射的。減少基本週期內MgF2層的厚度,髮現ODPCs對TE可見光波來說依然有光子禁帶效應。對ODPCs的一箇基本週期層改變為中心對稱層,利用相同的方法進行可見光波透射率譜的數值計算髮現,S1和S3結構的ODPCs的禁帶內齣現多箇透射峰;而S2結構的ODPCs其作用不變。
위료고찰일유광자정체(ODPCs)수억전반사적특수작용,본문설계출치우파리중적다주기적일유광자정체。대우용불화미(MgF2)화류화자(ZnS)위기본재료제작적5주기적ODPCs,이용전수구진법대기가견광파투사솔보진행수치계산。결과발현,저충ODPCs대우가견광존재광자수천효응。저충효응사ODPCs대TE가견광파래설시간섭절지려광편,이대우TM가견광파시투사적。감소기본주기내MgF2층적후도,발현ODPCs대TE가견광파래설의연유광자금대효응。대ODPCs적일개기본주기층개변위중심대칭층,이용상동적방법진행가견광파투사솔보적수치계산발현,S1화S3결구적ODPCs적금대내출현다개투사봉;이S2결구적ODPCs기작용불변。
In order to investigate the function of one dimension photonic crystals(ODPCs) in frustrated total re-flection, multi-periodic ODPCs which was embodied in glass were designed. The visible transmitted spectra(VTS) of 5-periodic ODPCs using magnesium fluoride(MgF2) and zinc sulfide(ZnS) to make basic period were numerically evaluated and that the photonic tunneling effect(PTE) for visible light is presence in such ODPCs were clearly stated. By PTE, ODPCs with MgF2/ZnS became interference filters for TE visible light wave, although they are transmitting for TM visible light wave. And such ODPCs are still provided with photonic forbidden band for TE visible light wave, in spite of the decrease of thickness of MgF2 layer in basic period. The VTS of ODPCs with basic period con-taining centrosymmetric layers were also numerically evaluated and that the transmission peaks appeared in photonic forbidden band for ODPCs with S1and S3 structure and that the function of ODPCs with S2 structure is fixed were in-dicated.