Title :
Numerical simulation of contrast inversion process when focusing laser beam in the absorbing medium
Author :
Bubis, E.L. ; Martynov, V.O.
Author_Institution :
Inst. of Appl. Phys., Nizhny Novgorod, Russia
fDate :
June 30 2014-July 4 2014
Abstract :
A numerical simulation of the inverse image formation of opaque objects by focusing the transmitted radiation into the absorbing medium is performed. It is shown that the process strongly depends on the ratio of the size of the object and the illuminating beam. Inverse image conversion exceeds 350% for small-scale objects, relative to the initial intensity of the beam.
Keywords :
image convertors; image processing; inverse problems; laser beam effects; numerical analysis; opacity; optical focusing; absorbing medium; contrast inversion process; focusing laser; illuminating beam; initial beam intensity; inverse image conversion; inverse image formation; numerical simulation; object size; opaque objects; small-scale objects; transmitted radiation; Computational modeling; Heat sinks; Inverse problems; Lead; Numerical models; Strips; Thermal conductivity; contrast inversion; nonlinear Zernike phase-contrast; thermal self-action;
Conference_Titel :
Laser Optics, 2014 International Conference
Conference_Location :
Saint Petersburg
Print_ISBN :
978-1-4799-3884-1
DOI :
10.1109/LO.2014.6886497
