论文标题
光子晶体纳米梁腔中的横向磁模式激光器
Transverse Magnetic Mode Laser in Photonic Crystal Nanobeam Cavity
论文作者
论文摘要
我们首先在室温下在光子晶体（PHC）平板结构中进行实验证明了横向磁性（TM）模式激光。这项研究提出了PHC纳米梁（NB）腔，以支持高质量的因子（Q-Factor）TM模式。对于大而完整的光子带隙，PHC NB结构由厚的介电板中的大空气孔组成。通过数值对超过1,000,000的高Q因子TM模式优化PHC NB腔，通过将空调的半径从PHC NB的中心四次缩小到边缘，通过将空气孔的半径四次减少。在室温下通过光脉冲泵化在室温下，在INGAASP量子 - 孔（QW）将优化的PHC NB空腔结构中观察到单个TM模式激光动作，在室温下，QW层被轻轻蚀刻。我们认为，具有轻微蚀刻QW的PHC NB NB腔中的TM模式激光器可能是表面等离子体激发源或高度敏感的光学传感器的良好候选者。
We first experimentally demonstrated a transverse magnetic (TM) mode laser in a Photonic crystal (PhC) slab structure at room temperature. This study proposes a PhC nanobeam (NB) cavity to support a high-quality-factor (Q-factor) TM mode. For a large and complete photonic bandgap, the PhC NB structures consist of large air holes in a thick dielectric slab. The PhC NB cavity was optimized numerically for a high-Q-factor TM mode of over 1,000,000 by reducing the radii of the air holes quadratically from the center to the edge of the PhC NB. A single TM mode lasing action was observed in an InGaAsP quantum-well (QW)-embedded optimized PhC NB cavity structure at room temperature via optical pulse pumping, where the QW layer was lightly etched. We believe that the TM mode lasers in PhC NB cavities with a lightly etched QW can be good candidates for a surface plasmon excitation source or a highly sensitive optical sensor.
