Share Email Print
cover

Proceedings Paper

Novel cholesteric materials doped with CdSe/ZnS quantum dots with photo- and electrotunable circularly polarized emission
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Optical materials based on cholesteric liquid crystals (LCs) doped with fluorescent CdSe/ZnS quantum dots (QDs) have been developed and demonstrated to have a wide photonic band gap. It has been shown that the fluorescence emission of QDs embedded in LCs is circularly polarized and that the dissymmetry factor of this polarization may be optically or electrically controlled via conformational changes in the helical structure of the LC matrix. The possibility of photochemical patterning or image recording using these materials has been demonstrated; the recorded information can be read through changes in the dissymmetry factor of circular polarization of QDs emission. The developed photo- and electro-active materials with a controlled degree of fluorescence circular polarization may be used as on-demand single photon sources in photonics, optoelectronics, and quantum cryptography, as well as for development of nanophotonic systems capable of low-threshold lasing.

Paper Details

Date Published: 11 October 2012
PDF: 9 pages
Proc. SPIE 8475, Liquid Crystals XVI, 847514 (11 October 2012); doi: 10.1117/12.929729
Show Author Affiliations
Konstantin E. Mochalov, Moscow Engineering Physics Institute (Russian Federation)
Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry (Russian Federation)
Alexey Yu. Bobrovsky, Moscow State Univ. (Russian Federation)
Vladimir A. Oleinikov, Moscow Engineering Physics Institute (Russian Federation)
Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry (Russian Federation)
Alyona V. Sukhanova, Moscow Engineering Physics Institute (Russian Federation)
Trinity College Dublin (Ireland)
Anton E. Efimov, Scientific Research Institute of Transplantology and Artificial Organs (Russian Federation)
Valery Shibaev, Moscow State Univ. (Russian Federation)
Igor Nabiev, Moscow Engineering Physics Institute (Russian Federation)
Trinity College Dublin (Ireland)


Published in SPIE Proceedings Vol. 8475:
Liquid Crystals XVI
Iam Choon Khoo, Editor(s)

© SPIE. Terms of Use
Back to Top