CAJ | 학술논문

为了改善滤波光谱的次极大,提高透过滤波片观察像的衬度,设计了减小次极大光强的石英晶体旋光滤波结构,并从理论上分析了滤波特性.以3级石英晶体旋光滤波器为例,由分析可知,在第3级之后增加1级与第1级或第2级相同的结构,均有效地减小了次极大的光强:比较发现,增加1级第2级的结构效果较好.结果表明,此设计对改善石英晶旋光滤波器次极大应用于观测光谱中提供了理论依据.
위료개선려파광보적차겁대,제고투과려파편관찰상적츤도,설계료감소차겁대광강적석영정체선광려파결구,병종이론상분석료려파특성.이3급석영정체선광려파기위례,유분석가지,재제3급지후증가1급여제1급혹제2급상동적결구,균유효지감소료차겁대적광강:비교발현,증가1급제2급적결구효과교호.결과표명,차설계대개선석영정선광려파기차겁대응용우관측광보중제공료이론의거.
In order to reduce sideband spectral energy and improve image lining of a quartz filter,a novel filter structure was designed and its characteristics were analyzed theoretically.Taking a three-level quartz filter for example,its sideband energy can be reduced efficiently by adding the same structure as the first or second level after the third level.Comparatively speaking,it is better to add a structure the same as the second level.The outcome provides academic gist to reduce sideband energy in spectral observation.