阴极的平均量子效率15%，且短波响应与长波响应几乎相当。

Average quantum efficiency is 15% and short wavelength responses are almost equivalent to long wavelength ones.

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这类器件需要同时具备高速、高量子效率、超窄光谱响应线宽的性能。

This type of devices are required to have high-speed, high quantum efficiency and ultra-narrow spectral linewidth simultaneously.

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