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Insect wing deformation measurements using high speed digital holographic interferometry

2010; Optica Publishing Group; Volume: 18; Issue: 6 Linguagem: Inglês

10.1364/oe.18.005661

1094-4087

Daniel D. Aguayo, Fernando Mendoza Santoyo, Manuel De la Torre-Ibarra, Manuel D. Salas-Araiza, Cristian Caloca-Mendez, David Asael Gutiérrez Hernández,

Optical measurement and interference techniques

An out-of-plane digital holographic interferometry system is used to detect and measure insect's wing micro deformations. The in-vivo phenomenon of the flapping is registered using a high power cw laser and a high speed camera. A series of digital holograms with the deformation encoded are obtained. Full field deformation maps are presented for an eastern tiger swallowtail butterfly (Pterourus multicaudata). Results show no uniform or symmetrical deformations between wings. These deformations are in the order of hundreds of nanometers over the entire surface. Out-of-plane deformation maps are presented using the unwrapped phase maps.