其它波长的光需要被过滤以免产生背景噪声，引起成像质量下降或淹没被激发的荧光信号。

The other wavelengths need to be suppressed to avoid background noise that reduces image contrast and obscures the fluorescent light emissions.

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光线在进入这个格子时，一些特定波长的光便被加强，而其它波长的光则被滤掉，以此种方式反射光线以产生色彩。

Light entering this lattice gets bounced around in ways that generate colour by reinforcing the peaks of some wavelengths and cancelling out those of others.

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而其它类型的激光器发出的激光波长是固定的。

Other laser weapons emit at fixed wavelengths.

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