Method for processing a response light signal of an element analysed by spectroscopy, device for its implementation and uses of this device or of this method

摘要

In the processing method, the response light signal (A) is sent onto an opto-optical gate (1, P) which produces a frequency shift, and samples the said signal. This opto-optical gate (1, P) comprises, in particular, a crystal of LiIO3 or of KDP as well as a pulsed pump signal source. <IMAGE>