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The Application of the Transient Optical Switch Based on Gradient Organic Heterojunctions

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Abstract

Anisotropy photoresponse can be effectively achieved based on gradient organic heterojunction. However, the gradient heterojunction has yet been studied due to the complicated process and great random error inside. Especially in the field of transient optics, the light on/off in femto/picosecond range is vitally important for high-speed optical systems, such as application in fiber communications. In this paper, the wedge-structured organic heterojunction was fabricated based on molecular beam epitaxy. The devices were combined with both wedge-structured heterojunction and half-wave plate. When the probe light was tuned to 2.0 eV, a narrow passband was instantly observed once the pump and probe light were perpendicular to each other. The photoresponse can be achieved within 0.84 ps which can tune the optical signals on and off in transient optics. The results have demonstrated an exciting application in photo sensing.

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Funding

The project is supported by Natural Science Foundation of the Higher Education Institutions of Jiangsu Province, China (Grant Nos. BK20180601 and BK20180596), the Fundamental Research Funds for the Central Universities (Grant Nos. JUSRP11834, JUSRP21935 and JUSRP11834B), and the Jiangsu Postdoctoral Science Foundation (Grant Nos. 2018K112C and 2018K113C).

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Authors and Affiliations

  1. School of Science, Jiangnan University, Wuxi, 214122, Jiangsu, China

    Guilin Liu, Jianbo Shao, Xi Xi & Guoqing Chen

  2. School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, Jiangsu, China

    Guilin Liu, Weifu Dong & Yuming Dong

  3. International Joint Research Center for Photoresponse Functional Molecular Materials, Wuxi, 214122, Jiangsu, China

    Guilin Liu, Weifu Dong & Yuming Dong

  4. College of ocean, Zhejiang University, Hangzhou, 310058, Zhejiang, China

    Zhongyang Zhang

  5. WuXi Sunteck-power Co. Ltd., Wuxi, 214028, Jiangsu, China

    Liping Chen & Rulong Chen

Authors
  1. Guilin Liu
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  2. Zhongyang Zhang
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  3. Jianbo Shao
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  4. Xi Xi
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  5. Weifu Dong
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  6. Yuming Dong
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  7. Guoqing Chen
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  8. Liping Chen
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  9. Rulong Chen
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Correspondence to Guilin Liu.

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Liu, G., Zhang, Z., Shao, J. et al. The Application of the Transient Optical Switch Based on Gradient Organic Heterojunctions. Plasmonics 14, 1405–1410 (2019). https://doi.org/10.1007/s11468-019-00924-x

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  • DOI: https://doi.org/10.1007/s11468-019-00924-x

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