FSQ型光电直读光谱仪
Photoelectric Direct Reading Spectrometer Model FSQ
Photoelectric Direct Reading Spectrometer Model FS
GaAs光电阴极表面污染
The surface contaminants of NEA GaAs photocathode
GaN光电阴极激活
activation of GaN photo-cathodes
N结光电二极管
P-N junction photodiode P