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20 February 2017 Analytical study of optical activity of chiral-shape nanocrystals
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We present here a simple quantum-mechanical model that describes interband optical activity of cubical semiconductor nanocrystals with chiral shape irregularities. Using the developed model, we derive the analytical expression for the rotatory strengths of interband transitions and show that the circular dichroism spectra of the chiral-shape nanocrystal consists only of the electric dipole allowed transitions. Taking into account the splitting of the valence band, one can interpret experimental circular dichroism spectra using just a few fitting parameters. The results of our study may prove useful for various branches of nanophotonics, chiral chemistry, and biomedicine.
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Nikita V. Tepliakov, Anvar S. Baimuratov, Alexander V. Baranov, Anatoly V. Fedorov, and Ivan D. Rukhlenko "Analytical study of optical activity of chiral-shape nanocrystals", Proc. SPIE 10114, Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XIV, 1011418 (20 February 2017);

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