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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 11 — Jun. 1, 2010
  • pp: 1822–1824

Method for artifact-free circular dichroism measurements based on polarization grating

Clementina Provenzano, Pasquale Pagliusi, Alfredo Mazzulla, and Gabriella Cipparrone  »View Author Affiliations


Optics Letters, Vol. 35, Issue 11, pp. 1822-1824 (2010)
http://dx.doi.org/10.1364/OL.35.001822


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Abstract

We propose a simple method to perform real-time measurements of circular dichroism (CD), which suppresses the artifacts introduced by anisotropic samples and nonideal optical elements in conventional spectrometers. A single polarization holographic grating is adopted, whose first orders of diffraction have amplitudes that are proportional to the right and left circular polarization component of the input light. We demonstrate that, exploiting unpolarized white light and the intrinsic spectral selectivity of the grating, the true CD spectrum is evaluated in parallel in the spectral range of interest from the intensities of the two diffraction orders, I + 1 and I 1 .

© 2010 Optical Society of America

OCIS Codes
(090.2890) Holography : Holographic optical elements
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(230.5440) Optical devices : Polarization-selective devices
(260.2130) Physical optics : Ellipsometry and polarimetry
(300.0300) Spectroscopy : Spectroscopy

ToC Category:
Spectroscopy

History
Original Manuscript: February 11, 2010
Revised Manuscript: April 21, 2010
Manuscript Accepted: April 23, 2010
Published: May 24, 2010

Citation
Clementina Provenzano, Pasquale Pagliusi, Alfredo Mazzulla, and Gabriella Cipparrone, "Method for artifact-free circular dichroism measurements based on polarization grating," Opt. Lett. 35, 1822-1824 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-11-1822


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References

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