in this method of measuring time-resolved spectrum, a special light beam modulator translates the time-distribution of an optical spectrum into a space-distribution of light intensity of the light beam, and the space-distribution spectrum is dispersed by a multi-spectrometer, then it is detected by an ordinary 2-d ccd array detector 瞬態(tài)時(shí)間分辨譜測(cè)量方法的主要思想:使用特殊光束調(diào)制器把光譜隨時(shí)間的變化過程轉(zhuǎn)化為光強(qiáng)的空間分布,經(jīng)色散后,以二維探測(cè)器接收并轉(zhuǎn)換光信號(hào)為電信號(hào),用通用計(jì)算機(jī)控制采集并處理光譜數(shù)據(jù)。