The possibility of measuring small harmonic surface oscillations with the help of a femtosecond laser is analyzed. It is shown that the large number of laser radiation modes allows a considerable increase in the signal-to-noise ratio. The potentialities of the method make possible to increase this ratio by a factor of N, where N is the number of laser radiation modes. The sensitivity improvement provides a decrease of the measurement time, which is important in many practical applications.
|Autori interni:||BEVERINI, NICOLO'|
|Autori:||Baklanov EV; Denisov VI; Beverini N; Carelli G|
|Titolo:||Measurement of small oscillations with the help of a femtosecond laser|
|Anno del prodotto:||2004|
|Digital Object Identifier (DOI):||10.1002/lapl.200410125|
|Appare nelle tipologie:||1.1 Articolo in rivista|