  Almost-common path interferometer using the separation of polarization states for digital phase-shifting shearographyRosso, Vanessa  ; Michel, Fabrice ; Renotte, Yvon et alin Optical Engineering : The Journal of the Society of Photo-Optical Instrumentation Engineers (2007), 46(10), An original experimental setup for shearography with metrological applications is presented. The simplicity and the efficiency of the setup are provided by a shearing device, a prism that separates the TE ... [more ▼] An original experimental setup for shearography with metrological applications is presented. The simplicity and the efficiency of the setup are provided by a shearing device, a prism that separates the TE and TM polarization modes with a coating and a thin glass plate placed on its face. The use of this shearing device enables an in-line and almost-common path configuration for the shearing interferometer, a path that leads to high stability and a low sensitivity to external disturbances. Moreover, the sensitivity of the interferometer can be easily adjusted for different applications by varying the shearing amount with glass plates of different thicknesses or by moving the shearing device between two lenses along the optical axis. The temporal phase-shifting method is applied through the use of a liquid crystal variable retarder. (c) 2007 Society of Photo-Optical Instrumentation Engineers. [less ▲] Detailed reference viewed: 17 (2 ULg) High transmission efficiency for surface plasmon resonance by use of a dielectric gratingLenaerts, Cedric ; Michel, Fabrice ; et alin Applied Optics (2005), 44(28), 6017-6022 The efficiency of the transmission of surface plasmon waves by use of a dielectric diffraction grating is discussed. The Kretschmann device allows us to obtain a surface plasmon resonance that consists of ... [more ▼] The efficiency of the transmission of surface plasmon waves by use of a dielectric diffraction grating is discussed. The Kretschmann device allows us to obtain a surface plasmon resonance that consists of an absorption peak in the reflection spectrum. When surface plasmon resonance occurs, the TM-polarization mode of the incident electromagnetic wave is neither transmitted nor reflected. The procedure to transform an absorption peak into a transmission peak is described. Transmittivity of 68% is obtained for a simple structure that consists of a thin-film layer of Ag coated on a volume diffraction grating and embedded between two dielectric media. The results presented herein were obtained by numerical simulations that were carried out by use of an algorithm based on the rigorous coupled-wave theory. [less ▲] Detailed reference viewed: 29 (8 ULg)At the crossing of physics and Aercheology : the OSIRIS projectRenotte, Yvon ; Laboury, Dimitri ; et alin Europhysics News (2004), 35/6 How physics can help aercheology, including a path to the parket Detailed reference viewed: 21 (4 ULg)Le Projet OSIRIS (Optical Systems for Interferometric Relief Investigation and Scanning). Projet de développement d'un système de relevé numérique des documents archéologiques en trois dimensions par des procédés optoélectroniquesLaboury, Dimitri ; Renotte, Yvon ; et alin L'archéométrie au service des monuments et des livres d'art (2003) Detailed reference viewed: 58 (6 ULg)The OSIRIS Project (Optical Systems for Interferometric-Photogrammetric Relief Investigation and Scanning). Development of a device for 3D numerical recording of archaeological and epigraphic documents by optoelectronic processesLaboury, Dimitri ; Renotte, Yvon ; et alin Boehler, Wolfgang (Ed.) PROCEEDINGS OF THE CIPA WG 6 INTERNATIONAL WORKSHOP ON SCANNING FOR CULTURAL HERITAGE RECORDING (2002, September) Detailed reference viewed: 77 (8 ULg)The OSIRIS Project (Optical Systems for Interferometric-Photogrammetric Relief Investigation and scanning), Development of a device for 3D numerical recording of archaeological and epigraphic documents by optoelectronic processesLaboury, Dimitri ; Renotte, Yvon ; et alin Proceedings of the CIPA WG6 international workshop on Scanning for Cultural Heritage Recording (2002) Detailed reference viewed: 52 (12 ULg)Développement d'un système de relevé numérique des documents archéologiques en trois dimensions par des procédés optoélectroniques; ; et al Poster (2001, November) Detailed reference viewed: 17 (0 ULg)Projet de développement d'un système de relevé numérique des documents archéologiques en trois dimensions par des procédés optoélectroniques; ; et al Poster (2000, November) Detailed reference viewed: 16 (0 ULg) |
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