Volume 10, Issue 12 pp. 1756-1760
Full Article

Propagation of Gaussian and Laguerre-Gaussian vortex beams through mouse brain tissue

Lingyan Shi

Corresponding Author

Lingyan Shi

Institute for Ultrafast Spectroscopy and Lasers, Department of Physics, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031, USA

Department of Biology, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031 USA

Department of Chemistry, Columbia University, New York, NY 10027 USA

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Lukas Lindwasser

Lukas Lindwasser

Institute for Ultrafast Spectroscopy and Lasers, Department of Physics, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031, USA

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Wubao Wang

Wubao Wang

Institute for Ultrafast Spectroscopy and Lasers, Department of Physics, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031, USA

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Robert Alfano

Robert Alfano

Institute for Ultrafast Spectroscopy and Lasers, Department of Physics, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031, USA

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Adrián Rodríguez-Contreras

Adrián Rodríguez-Contreras

Department of Biology, The City College of the City University of New York, 160 Convent Avenue, New York, NY 10031 USA

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First published: 21 June 2017
Citations: 19

Abstract

Light transmission of Gaussian (G) and Laguerre-Gaussian (LG) vortex beams in mouse brain tissue is investigated. Transmittance is measured with different orbital angular momentums (OAM) at various tissue thicknesses. In both ballistic and diffusive regions, transmittances of G and LG beams show no significant difference. The transition point from ballistic to diffusive region for the mouse brain tissue is determined at about 480 μm. The observed transmittances of the G and LG beams show independence on OAM modes, which may be attributed to poorly understood interference effects from brain tissue.

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