Polland, Hans-Joachim and Zinth, Wolfgang
A difference detection system for high precision measurements of ultrafast transmission changes.
In: Journal of Physics E: Scientific Instruments, No. 18: pp. 399-400
Ultrafast transmission changes can be recorded with high precision by means of a difference detection system. Using single pulses of low energy (0.1 nJ) and low repetition rate, variations of the transmitted energy induced by an excitation pulse are measured with an accuracy of 10-4.