Observation Of Vibrational Modes Of Irregular Drums

Olivier Haeberlé (1, 2) , Bernard Savopal (1) , Kristen Menou (3) , Holger Vach (3)

1 Laboratoire de Physique de la Matière Condensée
2 MIPS - Modélisation, Intelligence, Processus et Système
3 Laboratoire d'Optique Quantique

Vibrational modes of irregular or prefractal drums have been calculated using a correspondence between the wave propagation and the diffusion equations. The resonance frequencies and the vibrational-mode structures measured on low thickness plastic film membranes using a holographic setup are found to be in good agreement with theoretical predictions.

Domaines: Optique / photonique

Olivier Haeberlé, Bernard Savopal, Kristen Menou, Holger Vach. Observation Of Vibrational Modes Of Irregular Drums. Applied Physics Letters, 1998, 73 (23), pp.3357-3359. ⟨10.1063/1.122768⟩. ⟨hal-00958099⟩