CAJ | 학술논문

薄膜滤光片中心波长的稳定性是非常重要的参量.这不仅取决于膜层的聚集密度，而且与薄膜材料和基板的折射率温度系数及线性膨胀系数有着紧密的关系.本文根据滤光片的实验参量，分析计算了它们对滤光片中心波长漂移影响的大小，并提出了改善稳定性的途径.
박막려광편중심파장적은정성시비상중요적삼량.저불부취결우막층적취집밀도，이차여박막재료화기판적절사솔온도계수급선성팽창계수유착긴밀적관계.본문근거려광편적실험삼량，분석계산료타문대려광편중심파장표이영향적대소，병제출료개선은정성적도경.
The stability of central wavelength of a thin film filter is a very important parameter.The optical stability of a narrow band filter strongly depends not only on the packing density of individual thin film layer but also on the temperature coefficient of refractive index and thermal expansion of the film materials and substrate.Based on the experimental results for TiO2/SiO2 band pass filters，the effects on central wavelength shift of filters are analyzed and calculated and the methods for stability improvement are presented.