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Tambov State Technical University, Russian Federation
The method of sign-sensitive one specific velocity (OSV) mapping of flow with a complex geometry based on the principles of Doppler optical coherence tomography (OCT) is described. Structural and one specific velocity images are obtained using the signal of a scanning interferometer processed in frequency domain. Analog and digital filtering was also applied. Standard structural image is decomposed into three parts: stationary object, positive and negative OSV images. The latter two show equivelocity maps of the flow. The final image is represented as the complexation of the three ones.
BSDF calculation in Zemax using 3D Profilometry
Lihong LIU1, Pierre PFEIFFER1, Thierry ENGEL1,2, Manuel FLURY1,2
1Laboratoire des Sciences de l’Ingénieur, de l’Informatique et de l’Imagerie (ICube), UMR CNRS 7357, 300 bd Sébastien Brant, CS 10413, F-67412 Illkirch Cedex, France; 2Institut National des Sciences Appliquées de Strasbourg (INSA Strasbourg) – 24 Boulevard de la Victoire, 67084 Strasbourg Cedex, France
A tutorial method to calculate BSDF for the K-correlation scattering model is presented under Zemax OpticStudio 16. The calculation is based on the measurement results obtained with ZYGO’s NewView 72001 3D optical profilometer. Non-sequential raytracing results with the application of scattering model are given.
Glint Filtering At Marine Environment
Roy Yosef Avrahamy, Benny Milgrom, Shlomo Hava
Ben Gurion University, Israel
At marine environment, there is a collection of glints reflected on the water, which changes faster than the eye can discern. As for observation and detection systems at marine environment, these glints may produce severe saturation in some areas of photography. Saturation causes great difficulty for the observers, creating blinding glares and increasing fatigue. In addition, these glints increases marine target detection difficulty.
We have explored the glints at the Red-Sea and examined their reduction by adding linear polarizers to the observation camera. Experiments carried out an analysis in a qualitative and quantitative manner using image processing. A survey with observers was performed to examine the effectiveness of the solution.
Novel fluid materials for CMOS photonic WDM systems
Joaquin Faneca1,2, Benjamin T. Hogan1,2, Geoffrey R Nash1, Anna Baldycheva1,3
1University of Exeter, United Kingdom; 2EPSRC Centre for Doctoral Training in Electromagnetic Metamaterials University of Exeter, EX4 4QL, UK; 3Department of Electronic and Electrical Engineering, University of Dublin Trinity College, Dublin 2, Ireland
Recently commercialised CMOS photonics promises dramatic miniaturisation, substantially lower cost, and significant power savings. However, this technology is still in its infancy and its further advance relies on the development of new photonic materials and structures capable of efficiently controlling the propagation of electromagnetic radiation and of modifying light matter interactions on chip at high-speed.
Among all the currently developed photonic materials, only graphene and graphene related materials have been shown to be truly outstanding for application in reconfigurable CMOS photonics, facilitating endless opportunities for truly reconfigurable operation in electronic-photonic devices, which will further increase functional processing capacity.