Learn More
We demonstrate that stress engineering is an effective tool to modify or eliminate polarization dispersion in silicon-on-insulator (SOI) waveguide devices, for a wide range of waveguide cross-section shapes and dimensions. The stress-induced effects on the modal birefringence of SOI waveguides are investigated numerically and experimentally. Finite-element(More)
In recent years, high-resolution recording of heritage sites has stimulated a lot of research in fields like photogrammetry, computer vision, and computer graphics. Numerous algorithms and methodologies have been proposed in the literature for heritage recording from photogrammetry and laser scanner 3D data. In practice, what a 3D photographer needs for(More)
This paper presents a summary of the 3D modelling work that was accomplished in preparing multimedia products about the Byzantine Crypt of Santa Cristina, Apulia and some partial results on an ongoing project to re-build temple C of Selinunte, Sicily. An effective approach based upon high-resolution photo-realistic texture mapping onto 3D models generated(More)
This paper presents an overview of our recent work on several fundamental optical elements and their integration on the silicon-on-insulator (SOI) waveguide platform. Theory, design and experimental results are presented for monolithically integrated asymmetric graded-index waveguide couplers, as well as output couplers based on total internal reflection(More)
This paper presents the work that was accomplished in preparing a multimedia CDROM about the history of a Byzantine Crypt. An effective approach based upon high-resolution photo-realistic texture mapping onto 3D models generated from range images is used to present the spatial information about the Crypt. Usually, this information is presented on 2D images(More)
The National Research Council of Canada (NRC) has collaborated with numerous Canadian and international heritage institutions on the development of a complete suite of 3D imaging technologies for archival quality imaging, analysis and display of 3D models of museum objects and heritage sites including ancient crypt and grottos. The technology includes(More)
This paper presents the 3D modelling work that was accomplished in preparing a multimedia CDROM about the history of a Byzantine Crypt. An effective approach based upon high-resolution photorealistic texture mapping onto 3D models generated from range images is used to present the spatial information about the Crypt. Usually, this information is presented(More)
The control system for the SSRL injector for SPEAR is based on one central VAX/VMS workstation with additional workstations as consoles and standard CAMAC equipment for data transmission and hardware interfacing. The CAMAC crates are connected to the central workstation by using a serial highway. The central computer has the database that describes all the(More)
  • 1