【摘 要】
：
A high quality-factor(Q) cavity based on a one-dimensional(1D) photonic crystal with gradated elliptical holes was designed using FDTD simulation. Different gra
【机 构】
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State Key Laboratory of Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Sc
【出 处】
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Chinese Physics B
论文部分内容阅读
A high quality-factor(Q) cavity based on a one-dimensional(1D) photonic crystal with gradated elliptical holes was designed using FDTD simulation. Different gradient profiles of the mirror holes were found to correspond to different Qvalues of the cavities. A simple strategy is proposed to construct high-Q cavities by using an S-shaped gradient profile for the elliptical holes’ minor axes, such as a cosine function or Gaussian function. Using such a strategy, a Q value exceeding two million is obtained with only ten mirror holes in a cavity.
A high quality-factor (Q) cavity based on a one-dimensional (1D) photonic crystal with gradated elliptical holes was designed using FDTD simulation. Different gradient profiles of the mirror holes were found to correspond to different to Qvalues of the cavities. A simple strategy is proposed to construct high-Q cavities by using an S-shaped gradient profile for the elliptical holes’ minor axes, such as a cosine function or Gaussian function. using such a strategy, a Q value exceeding two million is obtained with only ten mirror holes in a cavity.
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