Abstract
In a triangular path cyclic interferometer employing a polarizing beam splitter (PBS), the two counterpropagating beams are orthogonally polarized. A sample placed almost equidistant from the PBS is imaged by a lens placed in the path of the emerging beams so that two defocused images of the sample are recorded on a CCD. Using a linear polarizer in the path of the orthogonally polarized imaging beams, it is possible to achieve amplitude subtraction between the two images, resulting in an edge-enhanced image of the sample. The proposed real-time edge-enhancement technique is experimentally demonstrated.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Sonali Chakraborty and K. Bhattacharya
Appl. Opt. 55(21) 5634-5639 (2016)
S. Sarkar, N. Ghosh, S. Chakraborty, and K. Bhattacharya
Appl. Opt. 51(1) 126-132 (2012)
Xin Lin, Junji Ohtsubo, and Tamiki Takemori
Appl. Opt. 35(17) 3148-3154 (1996)