具有窄带发射的稀土配合物发光材料，因其具有高荧光量子效率，高色纯度等特点，被用于制备有机电致发光器件。

Rare earth complex materials have been widely used in organic electroluminescence devices because of their high photoluminescence quantum efficiencies, narrow emission spectra and high color purity.

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光纤光栅作为光纤无源器件，利用其能在窄带内形成滤波器或反射镜这一特性，在光纤通信、光纤传感等领域得到了广泛的应用。

Fiber grating which is a passive fiber parts, has been used widely in the field of fiber communication and fiber sensing because it can form filter or reflector in narrow strap.

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本文提出用于声光器件的窄带及宽带匹配网络，并详细讨论了它们的特性。

This article presents the narrow band and broad band matching networks for acoustooptic devices Their characteristics are discussed in detail.

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