Observation of thermally induced tuning of lasing emission from melamine-formaldehyde resin microspheres

被引：0
|
作者：
Li, Hanyang [1 ]
Liu, Shuangqiang [1 ]
Peng, Feng [1 ]
Yang, Jun [1 ]
Li, Jin [2 ]
Zhang, Yundong [3 ]
机构：
[1] Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150080, Heilongjiang, Peoples R China
[2] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
[3] Harbin Inst Technol, Inst Optoelect, Natl Key Lab Tunable Laser Technol, Harbin 150080, Heilongjiang, Peoples R China
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2017年 / 56卷 / 03期
基金：
中国国家自然科学基金;
关键词：
WHISPERING-GALLERY MODES; OPTICAL MICROCAVITIES; LABEL-FREE; MICRORESONATORS; LASER;
D O I：
10.7567/JJAP.56.030305
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the observation of the thermally induced tuning of the whispering gallery mode lasing emission from active microcavities. Melamine-formaldehyde resin microspheres were doped with a fluorescent dye and pumped by a 532 nm pulse laser. We show that microspheres with different sizes display lasing emissions in different parts of the spectrum, with a varying number of lasing modes present in the spectrum. The dominant thermo-optic effect leads to a blue shift of the whispering gallery mode lasing. The thermal sensing with a sensitivity of 0.33 nm/degrees C is higher than that of conventional polymer microcavities. (c) 2017 The Japan Society of Applied Physics
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页数：4
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