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Opt Express. 2010 Jun 7;18(12):13136-50. doi: 10.1364/OE.18.013136.

Zeeman laser scanning confocal microscope and its ability on reduction of specimen-induced spherical aberration.

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Department of Optics and Photonics, National Central University, Jhongli 320, Taiwan.


The spherical aberration induced by refractive-index mismatch results in the degradation on the quality of sectioning images in conventional confocal laser scanning microscope (CLSM). In this research, we have derived the theory of image formation in a Zeeman laser scanning confocal microscope (ZLSCM) and conducted experiments in order to verify the ability of reducing spherical aberration in ZLSCM. A Zeeman laser is used as the light source and produces the linearly polarized photon-pairs (LPPP) laser beam. With the features of common-path propagation of LPPP and optical heterodyne detection, ZLSCM shows the ability of reducing the specimen-induced spherical aberration and improving the axial resolution simultaneously.

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