Optical activity of helical quantum-dot supercrystals
- Authors: Baimuratov A.S.1, Tepliakov N.V.1, Gun’ko Y.K.1,2, Baranov A.V.1, Federov A.V.1, Rukhlenko I.D.1,3
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Affiliations:
- ITMO University
- School of Chemistry and CRANN Institute
- Monash University, Clayton Campus
- Issue: Vol 122, No 1 (2017)
- Pages: 42-47
- Section: International Conference “Photonic Colloidal Nanostructures: Synthesis, Properties, and Applications” (PCNSPA-2016)
- URL: https://journal-vniispk.ru/0030-400X/article/view/165293
- DOI: https://doi.org/10.1134/S0030400X17010039
- ID: 165293
Cite item
Abstract
The size of chiral nanoparticles is much smaller than the optical wavelength. As a result, the difference in interaction of enantiomers with circularly polarized light of different handedness is practically unobservable. Due to the large mismatch in scale, the problem of enhancement of enantioselectivity of optical properties of nanoparticles is particularly important for modern photonics. In this work, we show that ordering of achiral nanoparticles into a chiral supercrystal with dimensions comparable to the wavelength of light allows achieving nearly total dissymmetry of optical absorption and demonstrate this using a helical super-crystal made of semiconductor quantum dots as an example. The proposed approach may find numerous applications in various optical and analytical methods used in biomedicine, chemistry, and pharmacology.
About the authors
A. S. Baimuratov
ITMO University
Email: tepliakov.nikita@gmail.com
Russian Federation, St. Petersburg, 197101
N. V. Tepliakov
ITMO University
Author for correspondence.
Email: tepliakov.nikita@gmail.com
Russian Federation, St. Petersburg, 197101
Yu. K. Gun’ko
ITMO University; School of Chemistry and CRANN Institute
Email: tepliakov.nikita@gmail.com
Russian Federation, St. Petersburg, 197101; Dublin 2
A. V. Baranov
ITMO University
Email: tepliakov.nikita@gmail.com
Russian Federation, St. Petersburg, 197101
A. V. Federov
ITMO University
Email: tepliakov.nikita@gmail.com
Russian Federation, St. Petersburg, 197101
I. D. Rukhlenko
ITMO University; Monash University, Clayton Campus
Email: tepliakov.nikita@gmail.com
Russian Federation, St. Petersburg, 197101; Clayton, Victoria, 3800
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