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 Wang1,2,*, and Xinguang Xu1,2,**
- 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
For the first time, a group-VI single element nanomaterial was used as the optical saturable absorber (SA) to generate laser pulses. With two-dimensional (2D) tellurene as a passive Q-switch, 1.06 μm and 1.3 μm pulse laser operations were realized from a diode-pumped Nd:YAG crystal. The shortest pulse widths were 98 ns and 178 ns, and the highest peak powers were 2.68 W and 2.45 W, respectively. Our research determines that tellurene is an excellent SA material in the near-infrared region.
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