Boron quantum dots all-optical modulator based on efficient photothermal effect

Cong Wang; Qianyuan Chen; Hualong Chen; Jun Liu; Yufeng Song; Jie Liu; Delong Li; Yanqi Ge; Youning Gong; Yupeng Zhang; Han Zhang

doi:10.29026/oea.2021.200032

Opto-Electronic Advances, Volume. 4, Issue 7, 200032-1(2021)

Boron quantum dots all-optical modulator based on efficient photothermal effect

Cong Wang1... Qianyuan Chen2, Hualong Chen1, Jun Liu1, Yufeng Song1, Jie Liu3, Delong Li1, Yanqi Ge1, Youning Gong1,*, Yupeng Zhang1 and Han Zhang1 |Show fewer author(s)

Author Affiliations

¹Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China

²School of Physics and Technology, and MOE Key Laboratory of Artificial Micro-and Nano-Structures, Wuhan University, Wuhan 430072, China

³Shandong Provincial Engineering and Technical Center of Light Manipulation & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China

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Figures & Tables(2)

Fig. 1. The work principle of pump probe setup. (a) The relationship between pump light and probe light in time domain and space domain. (b) The schematic diagram of pump probe setup.

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Table 1. The relaxation time constants of current state-of-the-art materials.
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Table 1. The relaxation time constants of current state-of-the-art materials.
Materials Wavelength (nm) τ₁ (fs) τ₂ (ps) Ref.
BQDs 970 194 15.1 This work
Graphene - 210 1.67 ref.¹
Cu_2-xS 1300 315 34 ref.²
SnS ~1000 620 153 ref.³
WS₂ ~564–689 1300 100 ref.⁴
Graphdiyne ~ 900 1400 24 ref.⁵

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Cong Wang, Qianyuan Chen, Hualong Chen, Jun Liu, Yufeng Song, Jie Liu, Delong Li, Yanqi Ge, Youning Gong, Yupeng Zhang, Han Zhang. Boron quantum dots all-optical modulator based on efficient photothermal effect[J]. Opto-Electronic Advances, 2021, 4(7): 200032-1

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