Title :
Contrast inversion by focusing laser beam in an absorbing medium
Author :
Bubis, E.L. ; Lozhkarev, V.V. ; Kozhevatov, I.E. ; Martynov, V.O. ; Silin, D.E. ; Stepanov, A.N. ; Gusev, S.A.
Author_Institution :
Inst. of Appl. Phys., Nizhny Novgorod, Russia
fDate :
June 30 2014-July 4 2014
Abstract :
Method for obtaining an inverted brightness image of opaque objects is described. Obtained transformation to a positive image up to 350%, relative to the intensity of the incident beam, is in agreement with numerical calculations.
Keywords :
brightness; laser beams; nonlinear optics; opacity; optical focusing; optical images; absorbing medium; contrast inversion; inverted brightness image; laser beam focusing; numerical calculations; opaque objects; Cameras; Focusing; Heating; Visualization; 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.2014.6886322
