Electrically controlled white laser emission through liquid crystal/polymer multiphases.

Light, Science & Applications
Alina AdamowJaroslaw Mysliwiec

Abstract

White lasers are becoming increasingly relevant in various fields since they exhibit unprecedented properties in terms of beam brightness and intensity modulation. Here we introduce a white laser based on a polymer matrix encompassing liquid crystals and multiple organic chromophores in a multifunctional phase-separation system. The separation of the hydrophilic matrix and the hydrophobic liquid crystals leads to the formation of a complex optically active layer, featuring lasing emission tuneable from blue to red. White laser emission is found with an optical excitation threshold of approximately 12 mJ/cm2. Importantly, an external electric field can be used to control the device emission intensity. White lasers with low-voltage (≤10 V) controllable emission might pave the way for a new generation of broadband light sources for analytical, computational, and communication applications.

References

Oct 1, 1996·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·D S Wiersma, A Lagendijk
Feb 9, 2005·Physical Review Letters·Stefano GottardoDiederik S Wiersma
Mar 28, 2007·Chemical Reviews·I D W Samuel, G A Turnbull
Dec 25, 2012·Optics Express·G CossuE Ciaramella
Jul 28, 2015·Nature Nanotechnology·Fan FanC Z Ning
Feb 26, 2016·Optics Express·C FoucherM D Dawson
Aug 9, 2016·Chemical Reviews·Alexander J C Kuehne, Malte C Gather
May 17, 2017·Science Advances·Atula S D SandanayakaChihaya Adachi
Aug 15, 2017·Soft Matter·Gia PetriashviliGabriella Cipparrone
Feb 11, 2018·Scientific Reports·Shu-Wei ChangYang-Fang Chen
May 3, 2018·Nature Communications·Markus KarlMalte C Gather
Feb 23, 2019·Nature Communications·Jinyang ZhaoYong Sheng Zhao

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Methods Mentioned

BETA
optical
confocal microscopy
light scattering

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