AN IMPROVED METHOD OF MEASURING LASER-INDUCED PRESSURE TRANSIENTS

Piezoelectric detectors are very versatile detectors for laser induced pressure signals in liquids and solids. For a reliable interpretation of these signals the large bandwidth of acoustic pulses (up to 250 MH z) and especially the high-frequency response of the experimental setu p have to be taken into account. Such measurements require a special c onsideration of the electric setup which substantially affects the int erpretation of the signals. In this paper we analyze these considerati ons and derive an algorithm that permits the correction of measured pr essure transients.