激光阈值
纳米线
升华(心理学)
材料科学
光电子学
紫外线
激光器
氮化镓
纳米技术
光学
波长
心理学
物理
图层(电子)
心理治疗师
作者
Sylvain Sergent,B. Damilano,S. Vézian,Sébastien Chenot,Tai Tsuchizawa,Masaya Notomi
摘要
We report on GaN nanowire lasers fabricated by selective-area sublimation, and we show that sublimated GaN nanowires can exhibit ultraviolet lasing action under optical pumping beyond room temperature, up to 380 K. We study by microphotoluminescence the temperature-dependent behavior of single nanowire lasers between 7 K and 380 K and extract a characteristic temperature of T = 126 K. We finally present a statistical study of the maximum lasing temperature in individual sublimated GaN nanowires and use it to assess the performance of the selective-area sublimation method for nanowire-based lasing applications.
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