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Title: Second harmonic generation polarization microscopy with tightly focused linearly and radially polarized beams
Authors: Yew, E.Y.S. 
Sheppard, C.J.R. 
Keywords: Nonlinear susceptibility tensor
Radially polarized
Second harmonic generation
Vectorial theory
Issue Date: 15-Jul-2007
Citation: Yew, E.Y.S., Sheppard, C.J.R. (2007-07-15). Second harmonic generation polarization microscopy with tightly focused linearly and radially polarized beams. Optics Communications 275 (2) : 453-457. ScholarBank@NUS Repository.
Abstract: Second harmonic generation microscopy was conducted on rat-tail tendons with linearly and radially polarized beams. Transverse and axial field components were generated in the focal region through tight focusing of linearly and radially polarized. It was found that the generated SHG signals could not be qualitatively explained with a scalar approximation to the electric field at the focus. Only by accounting for the interactions of the axial and transverse components of the electric field interacting through the nonlinear susceptibility χ(2) tensor could the SHG images be explained. For the case of collagen we find that the SHG signal varies as a function of the analyzer angle with a cos2 or sin2 dependency for linearly polarized beams. For tightly focused radially polarized beams we find that the output SHG is radially polarized after collimation and is independent of the analyzer angle. © 2007 Elsevier B.V. All rights reserved.
Source Title: Optics Communications
ISSN: 00304018
DOI: 10.1016/j.optcom.2007.03.065
Appears in Collections:Staff Publications

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