Dual-Wavelength Lasing with Orthogonal Circular Polarizations Generated in a Single Layer of a Polymer–Cholesteric Liquid Crystal Superstructure

Donghao Yang; Marouen Chemingui; Yu Wang; Xinzheng Zhang; Irena Drevensek-Olenik; Faheem Hassan; Qiang Wu; Yigang Li; Lotfi Saadaoui; Jingjun Xu

doi:10.3390/polym15051226

Polymers (Feb 2023)

Dual-Wavelength Lasing with Orthogonal Circular Polarizations Generated in a Single Layer of a Polymer–Cholesteric Liquid Crystal Superstructure

Donghao Yang,
Marouen Chemingui,
Yu Wang,
Xinzheng Zhang,
Irena Drevensek-Olenik,
Faheem Hassan,
Qiang Wu,
Yigang Li,
Lotfi Saadaoui,
Jingjun Xu

Affiliations

Donghao Yang: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Marouen Chemingui: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Yu Wang: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Xinzheng Zhang: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Irena Drevensek-Olenik: Faculty of Mathematics and Physics, University of Ljubljana, Department of Complex Matter, J. Stefan Institute, SI-1000 Ljubljana, Slovenia
Faheem Hassan: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Qiang Wu: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Yigang Li: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Lotfi Saadaoui: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China
Jingjun Xu: The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Joint Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics, School of Physics, Nankai University, Tianjin 300457, China

DOI: https://doi.org/10.3390/polym15051226
Journal volume & issue: Vol. 15, no. 5
p. 1226

Abstract

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We investigate the laser emission from a polymer–cholesteric liquid crystal superstructure with coexisting opposite chiralities fabricated by refilling a right-handed polymeric scaffold with a left-handed cholesteric liquid crystalline material. The superstructure exhibits two photonic band gaps corresponding to the right- and left-circularly polarized light. By adding a suitable dye, dual-wavelength lasing with orthogonal circular polarizations is realized in this single-layer structure. The wavelength of the left-circularly polarized laser emission is thermally tunable, while the wavelength of the right-circularly polarized emission is relatively stable. Due to its relative simplicity and tunability characteristics, our design might have broad application prospects in various fields of photonics and display technology.

Published in Polymers

ISSN: 2073-4360 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/polymers/

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