Angular Talbot effect

José Azaña (1) , Hugues Guillet de Chatellus (2)

1 INRS - Institut National de la Recherche Scientifique [Québec]
2 OPTIMA-LIPhy - OPTique et IMAgeries [Grenoble]

We predict the possibility of observing integer and fractional self-imaging (Talbot) phenomena on the discrete angular spectrum of periodic diffraction gratings illuminated by a suitable spherical wave front. Our predictions are experimentally validated, reporting what we believe to be the first observation of self-imaging effects in the far-field diffraction regime.

Domaines: Optique [physics.optics]

José Azaña, Hugues Guillet de Chatellus. Angular Talbot effect. Physical Review Letters, 2014, pp.112-213902-1 à 112-213902-5. ⟨10.1103/PhysRevLett.112.213902⟩. ⟨hal-00998967⟩