6 May 2008 Photonic crystal slab mirrors for an ultimate vertical and lateral confinement of light in vertical Fabry Perot cavities
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Abstract
Vertical Fabry Perot cavities (VFPCs) have enabled the realization of devices of great interest, like filters, photodetectors, VCSELs. In traditional VFPCs, the optical feedback is provided by two distributed Bragg Mirrors (DBRs). However, DBRs present two major drawbacks: they are generally rather thick mirrors, and they do not allow for a very high control on the lateral losses of the VFPC. We propose the use of a novel type of mirror, the photonic crystal slab mirror (PCM) which is able to overcome these limitations. In fact, we demonstrate that PCMs are ultra-thin single-layer mirrors that exhibit a very high reflectivity, and that allow also for a very tight control of the lateral velocity of photons, by a convenient engineering of the PCM Bloch modes. This concept will lead to the realization of ultra-compact and highly resonant VFPCs, interesting for VCSELs, non-linear optics-based devices, imaging, highly sensitive detectors, or 3D optical communication routing.
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S. Boutami, S. Boutami, B. Ben Bakir, B. Ben Bakir, X. Letartre, X. Letartre, J. L. Leclercq, J. L. Leclercq, P. Viktorovitch, P. Viktorovitch, } "Photonic crystal slab mirrors for an ultimate vertical and lateral confinement of light in vertical Fabry Perot cavities", Proc. SPIE 6989, Photonic Crystal Materials and Devices VIII, 69890V (6 May 2008); doi: 10.1117/12.781233; https://doi.org/10.1117/12.781233
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