Spherical aberration cancellation in a polarized photon-pairs confocal laser scanning microscope

Chi Hui Chang*, Chien Chou, Hsiu Fong Chang, Hon Fai Yau, Huan Jang Huang, Wen Chuan Kuo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Refractive-index mismatch in conventional confocal microscopy produces severe degradation on axial resolution of sectioning image because the spherical aberration is generated in specimen. In this study, we propose a polarized photon-pairs confocal laser scanning microscope (PCLSM) in which a two-frequency linear polarized photon-pairs (LPPPs) laser beam is produced. The common-path propagation of LPPPs integrated with optical heterodyne technique not only can reduce the spherical aberration but also decreases scattering effect in specimen at same time. Therefore, the better axial and lateral resolutions of the sectioning image are produced simultaneously. In the experiment, a verification and comparison between PCLSM and conventional confocal laser scanning microscope (CLSM) on the ability of cancellation of spherical aberration induced by cover glass are demonstrated experimentally. Finally, the ability of PCLSM which can decrease the spherical aberration based on the common-path propagation of LPPPs associated with polarization gating, spatial coherence gating and spatial filtering gating is discussed.

Original languageEnglish
Title of host publicationConfocal, Multiphoton, and Nonlinear Microscopic Imaging III
PublisherOptical Society of America
ISBN (Print)081946774X, 9780819467744
DOIs
StatePublished - Jun 2007
EventEuropean Conference on Biomedical Optics, ECBO 2007 - Munich, Germany
Duration: 17 Jun 200717 Jun 2007

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6630
ISSN (Print)1605-7422

Conference

ConferenceEuropean Conference on Biomedical Optics, ECBO 2007
Country/TerritoryGermany
CityMunich
Period17/06/0717/06/07

Keywords

  • Confocal microscopy
  • Linearly polarized photon-pairs (LPPPs)
  • Optical heterodyne
  • Refractive-index mismatch
  • Spherical aberration cancellation

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