Giant gyrotropy due to electromagnetic-field coupling in a bilayered chiral structure
Rogacheva, A.V., Fedotov, V.A., Schwanecke, A.S. and Zheludev, N.I. (2006) Giant gyrotropy due to electromagnetic-field coupling in a bilayered chiral structure. Physical Review Letters, 97, (17), 177401-[4pp]. (doi:10.1103/PhysRevLett.97.177401).
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We report experimental evidence that electromagnetic coupling between physically separated planar metal patterns located in parallel planes provides for extremely strong polarization rotatory power if one pattern is twisted with respect to the other, creating a chiral object. In terms of a rotary power per sample thickness equal to one wavelength, the bilayered structure rotates 5 orders of magnitude stronger than a gyrotropic crystal of quartz in the visible spectrum.
|Subjects:||T Technology > T Technology (General)
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy > Quantum, Light and Matter
University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||11 Sep 2007|
|Last Modified:||28 Mar 2014 15:20|
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Funded by: EPSRC (EP/C511786/1)
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