Liquid Crystals, volume 45, issue 1, pages 122-128
Enhancement of the optical absorption in cholesteric liquid crystals due to photonic effects: an experimental study
1
Department of Condensed Matter Physics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Bilbao, Spain
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2
Department of Applied Physics II, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Bilbao, Spain
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Publication type: Journal Article
Publication date: 2017-03-16
Journal:
Liquid Crystals
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 2.2
ISSN: 02678292, 13665855
General Chemistry
Condensed Matter Physics
General Materials Science
Abstract
ABSTRACT An anomalous strong optical absorption was measured in a cholesteric liquid crystal (CLC) at both edges of its photonic band gap. The experiment was carried out by studying the luminescence generated by the CLC sample doped with a small amount of fluorescent dye. The material was excited with monochromatic light at different angles of incidence and polarisations. Clear peaks were found in the luminescence response at angles for which the pumping wavelength coincides with the positions of the gap edges. The effect is especially noticeable for excitation under circularly polarised light of the same handedness as that of the CLC helix, and it is the highest at the long-wavelength edge. The modification of the absorption is originated by the helicoidal (photonic) structure of the material, which drastically influences the propagation of electromagnetic waves at certain frequencies and polarisations. The results were analysed numerically using an extension of the Berreman method that incorporates absorption effects. Good agreement with the experiment was found. Graphical Abstract
Citations by journals
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Journal of Molecular Liquids
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JETP Letters
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Springer Series in Optical Sciences
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Citations by publishers
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Taylor & Francis
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Taylor & Francis
7 publications, 63.64%
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
1 publication, 9.09%
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Elsevier
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Elsevier
1 publication, 9.09%
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Pleiades Publishing
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Pleiades Publishing
1 publication, 9.09%
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Springer Nature
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Springer Nature
1 publication, 9.09%
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- We do not take into account publications that without a DOI.
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- Statistics recalculated weekly.
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Etxebarria J., Ortega J., Folcia C. L. Enhancement of the optical absorption in cholesteric liquid crystals due to photonic effects: an experimental study // Liquid Crystals. 2017. Vol. 45. No. 1. pp. 122-128.
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Etxebarria J., Ortega J., Folcia C. L. Enhancement of the optical absorption in cholesteric liquid crystals due to photonic effects: an experimental study // Liquid Crystals. 2017. Vol. 45. No. 1. pp. 122-128.
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TY - JOUR
DO - 10.1080/02678292.2017.1302010
UR - https://doi.org/10.1080%2F02678292.2017.1302010
TI - Enhancement of the optical absorption in cholesteric liquid crystals due to photonic effects: an experimental study
T2 - Liquid Crystals
AU - Etxebarria, Jesus
AU - Ortega, J
AU - Folcia, C. L.
PY - 2017
DA - 2017/03/16 00:00:00
PB - Taylor & Francis
SP - 122-128
IS - 1
VL - 45
SN - 0267-8292
SN - 1366-5855
ER -
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@article{2017_Etxebarria,
author = {Jesus Etxebarria and J Ortega and C. L. Folcia},
title = {Enhancement of the optical absorption in cholesteric liquid crystals due to photonic effects: an experimental study},
journal = {Liquid Crystals},
year = {2017},
volume = {45},
publisher = {Taylor & Francis},
month = {mar},
url = {https://doi.org/10.1080%2F02678292.2017.1302010},
number = {1},
pages = {122--128},
doi = {10.1080/02678292.2017.1302010}
}
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Etxebarria, Jesus, et al. “Enhancement of the optical absorption in cholesteric liquid crystals due to photonic effects: an experimental study.” Liquid Crystals, vol. 45, no. 1, Mar. 2017, pp. 122-128. https://doi.org/10.1080%2F02678292.2017.1302010.