Lei Gao, Yunfei Yan, Xiaoqiang Sun et al. // Optical Engineering. 2009. <...> Detecting inhomogeneities of medium by the phase contrast method with Zernicke photothermal cell E. L. Bubis, Yu. <...> A. Mamaev, V. O. Martynov, A. S. Sergeev Institute of Applied Physics 46 Ul’yanov str., Nizhny Novgorod, 603950, Russia E-mail: bel@appl.sci-nnov.ru S. A. Gusev Institute for Physics of Microstructures GSP-105, Nizhny Novgorod, 603950, Russia E-mail: gusev@ipm.sci-nnov.ru I. E. Kozhevatov Research Radiophysical Institute (NIRFI) 25 Bolshaya Pecherskaya str., Nizhny Novgorod, 603950, Russia E-mail: kozhevatov@nirfi.sci-nnov.ru Certain questions of medium inhomogeneities detection by the phase contrast method with Zernicke photothermal cell are considered. <...> Рассмотрены некоторые вопросы детектирования неоднородности среды методом фазового контраста с фототермической ячейкой Цернике. <...>