作为可饱和吸收体的反射型MXene碳化钼薄膜的非线性光学响应

Nonlinear Optical Response of Reflective MXene Molybdenum Carbide Films as Saturable Absorbers.

作者信息

Wang Jiang, Wang Yonggang, Liu Sicong, Li Guangying, Zhang Guodong, Cheng Guanghua

机构信息

Center of Optical Imagery Analysis and Learning, Electronic Information College, Northwestern Polytechnical University, Xi'an 710072, China.

School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.

出版信息

Nanomaterials (Basel). 2020 Nov 30;10(12):2391. doi: 10.3390/nano10122391.

DOI:10.3390/nano10122391

PMID:33265985

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7760165/

Abstract

Molybdenum carbide (MoC) is a two-dimensional (2D) MXene material which makes it a promising photoelectric material. In this study, reflective type MXene MoC 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 μm, respectively. The fabricated thin films of reflective type MXene MoC exhibited large modulation depth of 6.86% and 5.38% at the central wavelengths of 1064 and 1342 nm, respectively. By inserting the MoC 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 μJ, and 275 mW, respectively, at a wavelength of 1.06 μm. Similarly, shorter laser pulses were obtained in Nd:YVO laser at 1.34 μm. Our results illustrated potential of the 2D MXene MoC films for laser applications.

摘要

碳化钼（MoC）是一种二维（2D）MXene材料，这使其成为一种有前景的光电材料。在本研究中，通过磁控溅射法在银镜上涂覆反射型MXene MoC薄膜，随后分别用于中心波长为1.06和1.34μm的被动调Q固态脉冲激光发生器中。制备的反射型MXene MoC薄膜在1064和1342nm中心波长处分别表现出6.86%和5.38%的大调制深度。通过将MoC可饱和吸收体（SAs）插入V型Nd:YAG激光器中，在波长为1.06μm时产生了脉冲持续时间、脉冲能量和平均输出功率分别为254ns、2.96μJ和275mW的短脉冲。同样，在1.34μm的Nd:YVO激光器中获得了更短的激光脉冲。我们的结果表明了二维MXene MoC薄膜在激光应用中的潜力。