Mathematics

Reports from University of Colorado highlight recent research in applied optics

  2008 MAR 24 - (VerticalNews.com) -- According to recent research published in the journal Applied Optics, "We introduce a quantitative phase imaging method for homogeneous objects with a bright field transmission microscope by using an amplitude mask and a digital processing algorithm."

  "A known amplitude pattern is imaged on the sample plane containing a thick phase object by placing an amplitude mask in the field diaphragm of the microscope. The phase object distorts the amplitude pattern according to its optical path length (OPL) profile, and the distorted pattern is recorded in a CCD detector," wrote S.R.P. Pavani and colleagues, University of Colorado.

  The researchers concluded: "A digital processing algorithm then estimates the object's quantitative OPL profile based on a closed form analytical solution, which is derived using a ray optics model for objects with small OPL gradients."

  Pavani and colleagues published their study in Applied Optics (Quantitative structured-illumination phase microscopy. Applied Optics, 2008;47(1):15-24).

  For additional information, contact S.R.P. Pavani, University of Colorado, Micro Optical Imaging Systems Laboratory, Dept. of Electrical & Computational Engineering, Campus Box 425, Boulder, CO 80309, USA.

  The publisher's contact information for the journal Applied Optics is: Optical Society American, 2010 Massachusetts Avenue NW, Washington, DC 20036, USA.

  Keywords: Algorithms, Applied Optics, Computational, Computers, Engineering, Isango limited, Mathematics, Physics, Processing Algorithm, Software.

  This article was prepared by VerticalNews Mathematics editors from staff and other reports. Copyright 2008, VerticalNews Mathematics via VerticalNews.com.