RT Journal Article
T1 Grating pseudo-imaging with polychromatic and finite extension sources
A1 García Rodríguez, Lucas
A1 Alonso Fernández, José
A1 Bernabeu Martínez, Eusebio
AB The pseudo-imaging process in a system consisting of two periodic gratings and illuminated by an incoherent polychromatic and finite extension source placed at a finite distance from the gratings is studied. An analytical expression of the irradiance distribution on a plane, also located at a finite distance from the gratings, has been obtained from previous results on monochromatic illumination. In the analysis presented, different imaging regimes are found and related to the parameters which characterize the double grating system. The pseudo-imaging phenomenon strongly depends on both the spatial and temporal coherence of the incident illuminating field. Certain pseudo-images are observed with polychromatic and incoherent incident light under some restrictions. On the other hand, pseudo-image process analogous to Talbot effect appears only by monochromatic and plane illuminating wavefront.
PB The Optical Society Of America
SN 1094-4087
YR 2004
FD 2004-05-31
LK https://hdl.handle.net/20.500.14352/51203
UL https://hdl.handle.net/20.500.14352/51203
LA eng
NO © 2004 Optical Society of America.This work has been supported by the Ministerio de Ciencia y Tecnología of Spain (contracts no. DPI2001-1238 and DPI2001-1369).
NO Ministerio de Ciencia y Tecnología (MCYT), España
DS Docta Complutense
RD 21 abr 2025