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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 9 — Sep. 4, 2009

Evidence of induced chirality in stirred solutions of supramolecular nanofibers

Oriol Arteaga, Adolf Canillas, Roberto Purrello, and Josep M. Ribó  »View Author Affiliations


Optics Letters, Vol. 34, Issue 14, pp. 2177-2179 (2009)
http://dx.doi.org/10.1364/OL.34.002177


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Abstract

Two-modulator generalized ellipsometry is used to determine the spectroscopic Mueller matrix of a solution of porphyrin supramolecular aggregates that have fibrous form. During the measurements the solutions were stirred in clockwise and anticlockwise directions. The pseudopolar decompostion is applied to the experimental Mueller matrices to unveil the birefringent and dichroics properties of the sample. The vortex flow in the stirred solution is found to modify the optical response of the aggregates to polarized light, and, in particular, its chiral signature is determined by the stirring direction in a totally reversible process. The data found show that chirality can be induced by stirring in solutions of supramolecular fibers and that a effective transfer of chirality from a macroscopic phenomenon to the supramolecular structures takes place.

© 2009 Optical Society of America

OCIS Codes
(260.2130) Physical optics : Ellipsometry and polarimetry
(160.1585) Materials : Chiral media
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

ToC Category:
Materials

History
Original Manuscript: May 18, 2009
Revised Manuscript: June 10, 2009
Manuscript Accepted: June 10, 2009
Published: July 10, 2009

Virtual Issues
Vol. 4, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Oriol Arteaga, Adolf Canillas, Roberto Purrello, and Josep M. Ribó, "Evidence of induced chirality in stirred solutions of supramolecular nanofibers," Opt. Lett. 34, 2177-2179 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-34-14-2177


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References

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