Two-dimensional tellurene nanosheets as saturable absorber of passively Q-switched Nd:YAG solid-state laser

Tianhong Tang; Fang Zhang; Mengxia Wang; Zhengping Wang; Xinguang Xu

doi:10.3788/COL202018.041403

Journals >Chinese Optics Letters >Volume 18 >Issue 4 >Page 041403 > Article

Chinese Optics Letters
Vol. 18, Issue 4, 041403 (2020)

Two-dimensional tellurene nanosheets as saturable absorber of passively Q-switched Nd:YAG solid-state laser

Tianhong Tang¹, Fang Zhang¹, Mengxia Wang¹, Zhengping Wang^1、2、*, and Xinguang Xu^1、2、**

Author Affiliations

¹State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

²Key Laboratory of Functional Crystal Materials and Device (Shandong University), Ministry of Education, Jinan 250100, China

show less

DOI: 10.3788/COL202018.041403 Cite this Article Set citation alerts

Tianhong Tang, Fang Zhang, Mengxia Wang, Zhengping Wang, Xinguang Xu. Two-dimensional tellurene nanosheets as saturable absorber of passively Q-switched Nd:YAG solid-state laser[J]. Chinese Optics Letters, 2020, 18(4): 041403 Copy Citation Text

EndNote(RIS)

BibTex

Plain Text

show less

(a) Original bulk tellurium crystal, (b) prepared tellurene nanosheets dispersion liquid, and (c) tellurene nanosheets SA-coated sapphire substrate.

Fig. 1. (a) Original bulk tellurium crystal, (b) prepared tellurene nanosheets dispersion liquid, and (c) tellurene nanosheets SA-coated sapphire substrate.

Download full size | View in the Article

Fig. 2. SEM images of (a) the bulk tellurium crystal and (b) the exfoliated tellurene nanosheet.

Download full size | View in the Article

Fig. 3. Characterizations of the tellurene thin film. (a) AFM image, (b) height profile, (c) HRTEM image, and (d) Raman spectrum.

Download full size | View in the Article

Fig. 4. (a) Linear transmission spectrum of the tellurene SA and (b) the nonlinear transmittance of the tellurene thin film.

Download full size | View in the Article

Fig. 5. Schematic diagram of the passively

Q

-switched laser based on the tellurene.

Download full size | View in the Article

Fig. 6. 1064 nm passively

Q

-switched laser characteristics of the tellurene SA. (a) The CW and PQS output powers. The inset shows the CW and PQS laser emission spectra. (b) The pulse duration and repetition frequency. (c) The single-pulse energy and peak power. (d) The pulse train and single-pulse profile.

Download full size | View in the Article

Fig. 7. 1.3 μm dual-wavelength passively

Q

-switched laser characteristics of the tellurene SA. (a) The CW and PQS output powers. The inset is the CW and PQS laser emission spectra. (b) The pulse duration and repetition frequency. (c) The single-pulse energy and peak power. (d) The pulse train and single-pulse profile.

Download full size | View in the Article

Fig. 8. (a) 2D and (b) 3D facula profile of the passively

Q

-switched 1.06 μm laser.

Download full size | View in the Article

Wavelength (μm)	SA material	Pulse properties					Reference
Wavelength (μm)	SA material	Pump threshold (W)	Average power (mW)	Repetition frequency (kHz)	Pulse width (ns)	Peak power (W)	Reference
1.06	Graphene	8.28	105	660	180.5	0.88	[39]
	BP	1.2	135	220	321	2	[40]
	${MoS}_{2}$	1.23	227	732	970	0.32	[41]
	${WS}_{2}$	1.49	201	481	112	3.72	[42]
	${ReS}_{2}$	4.4	670	274	1080	2.3	[38]
	Tellurene	0.72	140	535.8	97.5	2.68	This work
1.3	Graphene	2.2	890	135	466	14.14	[43]
	BP	0.9	157	175	363	3	[40]
	${MoS}_{2}$	6.9	52	77	729	0.93	[41]
	${ReS}_{2}$	0.12	78	214	403	0.9	[44]
	Tellurene	1.89	112	257.1	177.7	2.45	This work
2.0	Graphene	5.6	37	27.9	2080	0.84	[45]
	BP	–	12	17.7	3100	0.0002	[46]
	${MoS}_{2}$	1.65	100	48.09	800	2.59	[47]
	${WS}_{2}$	2.75	381	44.2	5600	1.54	[48]
	${ReS}_{2}$	1.15	245	677	415	0.87	[49]