Patch Antenna Microcavities THz Quantum Cascade Lasers

Patch Antenna Microcavities THz Quantum Cascade Lasers
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贴片天线微腔太赫兹量子级联激光器

DOI：
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发表时间：
2019
期刊：
International Conference on Infrared, Millimeter, and Terahertz Waves
影响因子：
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通讯作者：
K. Dani
K. Dani
中科院分区：
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文献类型：
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作者：
J. Pérez;J. Madéo;Y. Todorov;Lianhe H. Li;A. Davies;E. Linfield;C. Sirtori;K. Dani

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研究了贴片天线微腔阵列中THz量子级联激光器的发射特性。阵列几何形状是控制损耗和实现锁相的有效策略，允许光束整形和高光子外耦合效率。我们证明了一个40倍的增强发射相比，标准的脊波导和高斯光束发散度低至2° × 2°。
We study the emission of THz quantum cascade lasers (QCLs) designed in arrays of Patch Antenna Microcavities (PAM). The array geometry is an effective strategy to control the losses and to achieve phase locking, allowing for beam shaping and high photon outcoupling efficiency. We demonstrate a 40-fold enhanced emission compared to standard ridge waveguides and a gaussian beam divergence as low as 2° x 2°.