Optical spectrometer for measuring anti-Stokes luminescence initiated by single or double impulses

Abstract

A spectrometer with a data acquisition module for measuring light spectrum into the 330 -1000 nm range is built. The interface module produces periodical signals of single or double pulses with given width and duty cycle whish are used to control the light for illumination of the investigated material. The purpose of the spectrometer is to measure the light radiated from anti-Stokes phosphors which emission is a result of a sequential multiple photon absorption activated by these pulses.