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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >High Q vertical surface emitting photonic crystal surface-mode cavities with periodic perturbation
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High Q vertical surface emitting photonic crystal surface-mode cavities with periodic perturbation

机译：具有周期性扰动的高Q垂直表面发射光子晶体表面模式腔

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摘要

We introduce a periodical perturbation to realize photonic crystal vertical cavity surface emitting laser cavities based on surface modes (PCSM-VCSEL) and to enhance their quality factor. Different from the early reported direct periodical modulation to the cavity surface, a periodical perturbation under the surface can also result in the vertical emission due to the beaming effect. It is more important that this perturbation causes less energy diffraction loss or light output because the perturbation is imposed on not the center but the tail of the field of surface modes. Therefore, this modulation method greatly improves the quality factor of such PCSM-VCSEL cavities, which is favorable to their realization in practice. The numerical results demonstrate their characteristics and good performances in the application as light sources.
机译：我们引入周期性扰动，以基于表面模式（PCSM-VCSEL）实现光子晶体垂直腔表面发射激光腔，并提高其品质因数。与早期报道的对腔表面的直接周期性调制不同，由于射束效应，表面下的周期性扰动也可能导致垂直发射。更重要的是，这种扰动引起的能量衍射损失或光输出更少，因为这种扰动不是施加在表面模场的中心，而是施加在表面模场的尾部。因此，这种调制方法大大提高了这种PCSM-VCSEL腔的品质因数，有利于其在实践中的实现。数值结果证明了它们在光源应用中的特性和良好的性能。

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