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Optical force-induced nonlinearity and self-guiding of light in human red blood cell suspensions

Light(Science & Applications) 2019年第1期8卷 927-935页

作者： Rekha Gautam Yinxiao Xiang josh lamstein Yi Liang Anna Bezryadina Guo Liang Tobias Hansson Benjamin Wetzel Daryl Preece Adam White Matthew Silverman Susan Kazarian Jingjun Xu Roberto Morandotti Zhigang Chen Department of Physics and Astronomy San Francisco State UniversitySan FranciscoCA 94132USA Department of Biomedical Engineering Vanderbilt UniversityNashvilleTN 37240USA MOE Key Lab of Weak-Light Nonlinear Photonics TEDA Applied Physics Institute and School of PhysicsNankai UniversityTianjin 300457China Guangxi Key Lab for Relativistic Astrophysics Guangxi Colleges and Universities Key Lab of Novel Energy Materials and Related TechnologySchool of Physical Science and TechnologyGuangxi UniversityNanningGuangxi 530004China Department of Physics and Astronomy California State University NorthridgeNorthridgeCA 91330USA Institut National de la Recherche Scientifique Universite du QuebecVarennesQC J3X 1S2Canada Department of Physics Chemistry and BiologyLinkoping UniversityLinkoping SE-58183Sweden School of Mathematical and Physical Sciences University of SussexSussex HouseFalmerBrighton BN19RHUK Department of Biomedical Engineering University of California IrvineIrvineCAUSA Clinical Laboratory Science Program San Francisco State UniversitySan FranciscoCA 94132USA Institute of Fundamental and Frontier Sciences University of Electronic Science and Tech.of ChinaChengdu 610054China ITMO University Saint Petersburg 197101Russia

Osmotic conditions play an important role in the cell properties of human red blood cells(RBCs),which are crucial for the pathological analysis of some blood diseases such as *** the past decades,numerous efforts have mainly focused on the study of the RBC biomechanical properties that arise from the unique deformability of ***,we demonstrate nonlinear optical effects from human RBCs suspended in different osmotic ***,we observe self-trapping and scattering-resistant nonlinear propagation of a laser beam through RBC suspensions under all three osmotic conditions,where the strength of the optical nonlinearity increases with osmotic pressure on the *** tunable nonlinearity is attributed to optical forces,particularly the forward-scattering and gradient ***,in aged blood samples(with lysed cells),a notably different nonlinear behavior is observed due to the presence of free *** use a theoretical model with an optical force-mediated nonlocal nonlinearity to explain the experimental *** work on light self-guiding through scattering biosoft-matter may introduce new photonic tools for noninvasive biomedical imaging and medical diagnosis.

关键词： nonlinearity suspensions nonlinear

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