Showing 2 results for Imaging.
G. Moghimislam, H. Latifi, M. R. Riahi,
Volume 3, Issue 1 (3-2009)
Abstract
The average velocity of water flow has been simultaneously measured with fluorescent and speckle imaging methods. The measured velocities with two methods are in good agreement with each other and it confirms that the speckle imaging method can be used as a confident method to measure the velocity of water flow in a dry leaf. Also the velocity of water flow through thick and thin xylems of a leaf can be measured with speckle imaging method and the ratio of thick xylem’s radius to thin xylem’s radius can be estimated with this method. Also the ratio was measured by monitoring the cross section of the leaf. The two measurements were in agreement.
Neda Roostaei, Nizar Salim Shnan, Mohammad Mosleh, Seyedeh Mehri Hamidi,
Volume 16, Issue 2 (7-2022)
Abstract
Optical diffusers are optical elements for smoothing the spatial distribution of light through irregular light scattering. Recently, the fabrication and engineering of optical diffusers has attracted many attentions. In this research, an optical diffuser was fabricated using silicon carbide ceramic powder and by placing the diffuser in the optical path of the experimental setup of optical transmission microscope, the spatial intensity distribution was investigated. The uniform and symmetric spatial distribution was achieved after placing the diffuser in the optical path, and the intensity distribution diagrams were obtained corresponding to the Gaussian distribution. Finally, two-dimensional samples based on polydimethylsiloxane substrate and Kapton tape were fabricated using a low cost and simple soft nano-lithography technique and the colorimetry and imaging of the fabricated 2D samples were investigated using this experimental setup.
