Multi-Band Up-Converted Lasing Behavior in NaYF₄:Yb/Er Nanocrystals

Ya-Pei Peng; Wei Lu; Pengpeng Ren; Yiquan Ni; Yunfeng Wang; Peiguang Yan; Yu-Jia Zeng; Wenfei Zhang; Shuangchen Ruan

doi:10.3390/nano8070497

Multi-Band Up-Converted Lasing Behavior in NaYF₄:Yb/Er Nanocrystals

Nanomaterials (Basel). 2018 Jul 5;8(7):497. doi: 10.3390/nano8070497.

Authors

Ya-Pei Peng¹, Wei Lu², Pengpeng Ren³, Yiquan Ni⁴, Yunfeng Wang⁵, Peiguang Yan⁶, Yu-Jia Zeng⁷, Wenfei Zhang⁸, Shuangchen Ruan⁹

Affiliations

¹ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. yypeng@szu.edu.cn.
² University Research Facility in Materials Characterization and Device Fabrication, The Hong Kong Polytechnic University, Hong Kong 999077, China. wei.lu@polyu.edu.hk.
³ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. ncurenpeng@outlook.com.
⁴ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. 18394667281@163.com.
⁵ Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong 999077, China. heybabyruthless@hotmail.com.
⁶ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. yanpg@szu.edu.cn.
⁷ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. yjzeng@szu.edu.cn.
⁸ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. zhangwf@szu.edu.cn.
⁹ Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China. scruan@szu.edu.cn.

Abstract

Random lasers have attracted great interests and extensively investigation owing to their promising applications. Here, we explored unambiguously the multi-band up-converted random lasing from NaYF₄:Yb,Er nanocrystals (NCs). NaYF₄:Yb,Er NCs exhibit high effective up-conversion luminescence when they are excited by continuous wave 980 nm laser. We investigated a planar microcavities approach wherein the NaYF₄:Yb,Er NCs showed up-converted lasing behavior. The optical pumping of NaYF₄:Yb,Er NCs by 980 nm pulsed laser excitation exhibited multi-band lasing. The NaYF₄:Yb,Er NCs showed multi-band lasing emission with a line width of 0.2 nm at 540 nm and 0.4 nm at 660 nm. This research promotes potential application in bioimaging and biomedical fields.

Keywords: nanomaterials; random laser; up-conversion.