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  Z-polarized confocal microscopy

Huse, N., Schoenle, A., & Hell, S. W. (2001). Z-polarized confocal microscopy. Journal of Biomedical Optics, 6(4), 480-484. Retrieved from http://spiedigitallibrary.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JBOPFO000006000004000480000001&idtype=cvips&prog=normal.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-F52E-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-E375-A
Genre: Journal Article

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 Creators:
Huse, N.1, Author              
Schoenle, A.1, Author              
Hell, S. W.1, Author              
Affiliations:
1Department of NanoBiophotonics, MPI for biophysical chemistry, Max Planck Society, ou_578627              

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Free keywords: single molecule spectroscopy; longitudinal field; microscopy; confocal; transition dipole; z polarization
 Abstract: In light microscopy the transverse nature of the electromagnetic field precludes a strongly focused longitudinal field component, thus confining polarization spectroscopy and imaging to two dimensions (xy). Here we describe a simple confocal microscopy arrangement that optimizes for signal from molecules with transition dipoles oriented parallel to the optic axis. In the proposed arrangement, we not only generate a predominant longitudinally (z) polarized focal field, but also engineer the detection scheme in such a way that in a bulk of randomly oriented molecules, the microscope's effective point- spread function is dominated by the contribution of those molecules that are oriented along the optic axis. Our arrangement not only implicitly allows for the determination of the orientation of transition dipoles of single molecules in three dimensions, but also highlights the contribution of z- oriented molecules in three-dimensional imaging. (C) 2001 Society of Photo-optical Instrumentation Engineers

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Language(s): eng - English
 Dates: 2001-10
 Publication Status: Published in print
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Title: Journal of Biomedical Optics
  Alternative Title : .
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 6 (4) Sequence Number: - Start / End Page: 480 - 484 Identifier: -