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

Journals >Opto-Electronic Advances >Volume 4 >Issue 7 >Page 200032-1 > Article

Opto-Electronic Advances
Vol. 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 Gong^1、*, Yupeng Zhang¹, and Han Zhang¹

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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DOI: 10.29026/oea.2021.200032 Cite this Article

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 Copy Citation Text

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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.

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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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

Table 1. The relaxation time constants of current state-of-the-art materials.

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