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

doi:10.1002/advs.201900916

Advanced Science (Nov 2019)

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

Affiliations

Junfeng Lu: 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
Fangtao Li: 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
Wenda Ma: 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
Jufang Hu: 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
Yiyao Peng: 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
Zheng Yang: 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
Qiushuo Chen: 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
Chunxiang Xu: State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Nanjing 210096 P. R. China
Caofeng Pan: 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
Zhong Lin Wang: 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

DOI: https://doi.org/10.1002/advs.201900916
Journal volume & issue: Vol. 6, no. 22
pp. n/a – n/a

Abstract

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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.

Published in Advanced Science

ISSN: 2198-3844 (Online)
Publisher: Wiley
Country of publisher: Germany
LCC subjects: Science
Website: https://onlinelibrary.wiley.com/journal/21983844

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