Volume 48 Issue 11
Dec.  2019
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Wu Xingzhi, Zhou Wenfa, Shen Lei, Xiao Jinchong, Song Yinglin. Conjugated twistacene as high-performance optical limiting material for ultrafast broadband laser protection[J]. Infrared and Laser Engineering, 2019, 48(11): 1103001-1103001(6). doi: 10.3788/IRLA201948.1103001
Citation: Wu Xingzhi, Zhou Wenfa, Shen Lei, Xiao Jinchong, Song Yinglin. Conjugated twistacene as high-performance optical limiting material for ultrafast broadband laser protection[J]. Infrared and Laser Engineering, 2019, 48(11): 1103001-1103001(6). doi: 10.3788/IRLA201948.1103001

Conjugated twistacene as high-performance optical limiting material for ultrafast broadband laser protection

doi: 10.3788/IRLA201948.1103001
  • Received Date: 2019-09-11
  • Rev Recd Date: 2019-10-21
  • Publish Date: 2019-11-25
  • High-performance optical limiting (OL) is of great importance in laser protection application. Although the research of OL lasts for decades, most existing material can not possess all the desired merits such as low threshold, high linear transmittance, especially broadband and ultrafast respondence. Here, the multi-functional OL in conjugated twistacene was reported through experiments and theory. Results show that broadband OL with fast switching speed can be achieved from 480 nm-700 nm based on effective three-photon absorption. Moreover, low OL thresholds (0.15 J/cm2) and extremely high linear transmittance (92% at 532 nm) are simultaneously observed. All these combined advantages in one material shows tremendous potential in ultrafast laser protection for human eye and photonic devices.
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Conjugated twistacene as high-performance optical limiting material for ultrafast broadband laser protection

doi: 10.3788/IRLA201948.1103001
  • 1. Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application,School of Mathematics and Physics,Suzhou University of Science and Technology,Suzhou 215009,China;
  • 2. Science and Technology on Electro-Optical Information Security Control Laboratory,Tianjin 300308,China;
  • 3. School of Physical Science and Technology,Soochow University,Suzhou 215006,China;
  • 4. Key Laboratory of Medicinal Chemistry and Molecular Diagnosis,Ministry of Education,Key Laboratory of Chemical Biology of Hebei Province,College of Chemistry and Environmental Science,Hebei University,Baoding 071002,China;
  • 5. Department of Physics,Harbin Institute of Technology,Harbin 150001,China

Abstract: High-performance optical limiting (OL) is of great importance in laser protection application. Although the research of OL lasts for decades, most existing material can not possess all the desired merits such as low threshold, high linear transmittance, especially broadband and ultrafast respondence. Here, the multi-functional OL in conjugated twistacene was reported through experiments and theory. Results show that broadband OL with fast switching speed can be achieved from 480 nm-700 nm based on effective three-photon absorption. Moreover, low OL thresholds (0.15 J/cm2) and extremely high linear transmittance (92% at 532 nm) are simultaneously observed. All these combined advantages in one material shows tremendous potential in ultrafast laser protection for human eye and photonic devices.

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