期刊
NANOMATERIALS
卷 10, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/nano10122391
关键词
Molybdenum carbide; films; nonlinear optical materials; saturable absorbers; Q-switched
类别
资金
- Fundamental Research Funds for the Central Universities [31020200QD039]
- National Key Research and Development Program of China [2018YFB11074]
Molybdenum carbide (Mo2C) is a two-dimensional (2D) MXene material which makes it a promising photoelectric material. In this study, reflective type MXene Mo2C thin films were coated on a silver mirror by a magnetron sputtering method and were subsequently used in a passively Q-switched solid-state pulsed laser generator at the central wavelengths of 1.06 and 1.34 mu m, respectively. The fabricated thin films of reflective type MXene Mo2C exhibited large modulation depth of 6.86% and 5.38% at the central wavelengths of 1064 and 1342 nm, respectively. By inserting the Mo2C saturable absorbers (SAs) into V-shaped Nd:YAG laser, short pulses were generated having a pulse duration, pulse energy, and average output power of 254 ns, 2.96 mu J, and 275 mW, respectively, at a wavelength of 1.06 mu m. Similarly, shorter laser pulses were obtained in Nd:YVO4 laser at 1.34 mu m. Our results illustrated potential of the 2D MXene Mo2C films for laser applications.
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