According to coupled wave theory, the volume hologram has a good property for light filtering and can be used as a kind of narrow-band filter.
根据耦合波理论，体积全息图有很好的滤光特性，可以作为一种窄带滤光片在实际中得到应用。
A photonic crystal narrow band filter at green light wave band is designed with optical transfer matrix method, and some factors affected are studied.
利用传输矩阵法设计了一种适用于绿光波段的光子晶体窄带滤波器，并研究了影响滤波器特性的多种因素。
Result characteristics of wave diagram, voice broad band spectrum, as well as the voice narrow band spectrum at the edit points were found.
结果找到剪辑点痕迹特征在时域波形图、宽带语谱图、窄带语谱图上的反映。
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