Broadband nonlinear optical resonance and all-optical switching of liquid phase exfoliated tungsten diselenide

Yue Jia; Youxian Shan; Leiming Wu; Xiaoyu Dai; Dianyuan Fan; Yuanjiang Xiang

doi:10.1364/PRJ.6.001040

Journals >Photonics Research >Volume 6 >Issue 11 >Page 1040 > Article

Photonics Research
Vol. 6, Issue 11, 1040 (2018)

Broadband nonlinear optical resonance and all-optical switching of liquid phase exfoliated tungsten diselenide

Yue Jia^1、2, Youxian Shan^1、2, Leiming Wu^1、2, Xiaoyu Dai^1、2, Dianyuan Fan^1、2, and Yuanjiang Xiang^2、*

Author Affiliations

¹SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

²Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

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DOI: 10.1364/PRJ.6.001040 Cite this Article Set citation alerts

Yue Jia, Youxian Shan, Leiming Wu, Xiaoyu Dai, Dianyuan Fan, Yuanjiang Xiang. Broadband nonlinear optical resonance and all-optical switching of liquid phase exfoliated tungsten diselenide[J]. Photonics Research, 2018, 6(11): 1040 Copy Citation Text

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Characterization of WSe2 nanoparticles after stable storing for two weeks. (a) TEM image, (b) HRTEM image, (c) AFM image, (d) transmittance spectrum, (e) Raman spectrum, and (f) XRD pattern.

Fig. 1. Characterization of WSe2 nanoparticles after stable storing for two weeks. (a) TEM image, (b) HRTEM image, (c) AFM image, (d) transmittance spectrum, (e) Raman spectrum, and (f) XRD pattern.

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Fig. 2. Diagrammatic sketch of the measuring experimental setup.

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$(a)–(c) Diffraction rings received by a CCD of SSPM transformation; (d) schematic of the distortion for WSe2 nanoparticle dispersions.$

Fig. 3. (a)–(c) Diffraction rings received by a CCD of SSPM transformation; (d) schematic of the distortion for WSe2 nanoparticle dispersions.

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$(a) Variation of the half-cone angle (θH) with incident intensity; (b) variation of the distortion angle (θD) with incident intensity; (c) change in the nonlinear refractive index of WSe2 after distortion.$

Fig. 4. (a) Variation of the half-cone angle (θH) with incident intensity; (b) variation of the distortion angle (θD) with incident intensity; (c) change in the nonlinear refractive index of WSe2 after distortion.

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$Variation of diffraction ring numbers with incident intensity at λ=532 nm, λ=671 nm, and λ=457 nm, respectively.$

Fig. 5. Variation of diffraction ring numbers with incident intensity at λ=532 nm, λ=671 nm, and λ=457 nm, respectively.

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$(a) Transformation of SSPM. (1)–(3): continuous wave; (4)–(6): ultrafast wave. (b) Variation of diffraction ring numbers with continuous wave and ultrafast wave.$

Fig. 6. (a) Transformation of SSPM. (1)–(3): continuous wave; (4)–(6): ultrafast wave. (b) Variation of diffraction ring numbers with continuous wave and ultrafast wave.

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Fig. 7. Schematic of the experimental configuration for all-optical switching.

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Fig. 8. (a) Results obtained by using a relatively strong λ=532 nm laser beam to control the other laser beam with relatively weak power at λ=671 nm; (b), (c) images obtained from white screen.

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2D Materials	Wavelength (nm)	$n_{2}$ ( ${cm}^{2} / W$ )	$χ_{monolayer}^{(3)}$ (e.s.u.)	References
Graphene	473	$10^{- 7}$	$10^{- 7}$	Ref. [38]
Graphene	532	$10^{- 7}$	$10^{- 7}$	Ref. [38]
${Bi}_{2} {Se}_{3}$	350	$10^{- 8}$	$10^{- 8}$	Ref. [39]
	600	$10^{- 9}$	$10^{- 8}$
	700	$10^{- 9}$	$10^{- 9}$
Black phosphorus	600	$10^{- 5}$	$10^{- 8}$	Ref. [40]
	700	$10^{- 5}$	$10^{- 8}$
	1160	$10^{- 5}$	$10^{- 8}$
${WSe}_{2}$	457	$10^{- 9}$	$10^{- 6}$	Our work
	532	$10^{- 10}$	$10^{- 6}$
	671	$10^{- 11}$	$10^{- 6}$