DataVXAdvanced SciencePaper
journal article·2019-11Open access

Two Photon–Pumped Whispering‐Gallery Mode Lasing and Dynamic Regulation

Junfeng Lu, Fangtao Li, Wenda Ma, Jufang Hu, Yiyao Peng, Zheng Yang, Qiushuo Chen, Chunxiang Xu, Caofeng Pan, Zhong Lin Wang

Advanced Science· Volume 6· Issue 22
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Source abstract

Abstract

Abstract Realizing the dynamic regulation of nonlinear optical signals has a great scientific significance for the development of new‐type nonlinear optoelectronic devices and expands its application in the field of laser technology, spectroscopy, material structure analysis, etc. Here, two photon absorption–induced whispering‐gallery mode lasing from a single ZnO microresonator with a relatively low lasing threshold (15 µW) and high quality factor (Q ≈ 3200) under ambient conditions is demonstrated. Furthermore, success is achieved in obtaining the dynamic regulation of two photon–pumped lasing mode in the UV gain region. The corresponding resonant wavelength can be tuned dynamically from 388.99 and 391.12 to 390.01 and 392.12 nm for TE33 and TE32 modes, respectively. This work provides a new strategy for building high‐performance mode‐adjustable frequency upconversion lasers.
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Research context

Electronic materials

OpenAlex topics: Advanced Fiber Laser Technologies · Photonic and Optical Devices · Nonlinear Optical Materials Studies

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Affiliations

CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro‐Nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 P. R. China

School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China

State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Nanjing 210096 P. R. China

School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332‐0245 USA

Funding

National Natural Science Foundation of China · Ministry of Science and Technology of the People's Republic of China · China Postdoctoral Science Foundation · Natural Science Foundation of Beijing Municipality

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