In the case of type I down-conversion, the polarization of the signal and the idler photons will be identical, its direction being determined by the polarization of the pump.是什么意思_In the case of type I down-conversion, the polarization of the signal and the idler photons will be identical, its direction being determined by the polarization of the pump.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句