The cross section eigenmodes of micrometric cylinders were measured in the range of several tenth of MHz to about 0:5 GHz. The vibrations were excited using subnanosecond laser pulses. The cross section eigenmodes were simulated using nite element modeling in a 2D geometry. Using the method of resonant ultrasound spectroscopy, the vibration spectrum of an aluminum wire of diameter 33 μm served to determine the transverse Young modulus and Poisson ratio with a precision of 0.7% and 0.3%, respectively. The calculated and measured frequencies of cross section eigenmodes were tted with a precision better than 0.5% in the 50-500MHz range.
