Electrically controlled white laser emission through liquid crystal/polymer multiphases

Alina Adamow; Adam Szukalski; Lech Sznitko; Luana Persano; Dario Pisignano; Andrea Camposeo; Jaroslaw Mysliwiec

doi:10.1038/s41377-020-0252-9

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Electrically controlled white laser emission through liquid crystal/polymer multiphases

Article

- Electrically controlled white laser emission through liquid crystal/polymer multiphases
- Light: Science & Applications Vol. 9, Issue 1, Pages: 167-175(2020)
- Affiliations：
  
  1.Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
  2.NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, 56127 Pisa, Italy
  3.Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo 3, 56127 Pisa, Italy
- Author bio：
  
  Luana Persano (luana.persano@nano.cnr.it)
  Andrea Camposeo (andrea.camposeo@nano.cnr.it)
  Jaroslaw Mysliwiec (jaroslaw.mysliwiec@pwr.edu.pl)
- Funds：
- DOI：10.1038/s41377-020-0252-9
  CLC：
- Published：2020，
  
  Published Online：11 February 2020，
  
  Received：25 April 2019，
  
  Revised：24 December 2019，
  
  Accepted：16 January 2020
- Accepted：
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Adamow, A. et al. Electrically controlled white laser emission through liquid crystal/polymer multiphases. Light: Science & Applications, 9, 167–175 (2020).
DOI：

Adamow, A. et al. Electrically controlled white laser emission through liquid crystal/polymer multiphases. Light: Science & Applications, 9, 167–175 (2020). DOI： 10.1038/s41377-020-0252-9.

摘要

Abstract

White lasers are becoming increasingly relevant in various fields since they exhibit unprecedented properties in terms of beam brightness and intensity modulation. Here w

e 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/cm

. 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.

关键词

Keywords

references

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