Using metallic photonic crystals as visible light sources

Article

关键词: THERMAL EMISSION;    BAND;    TRANSMISSION;    EMITTER;   

DOI  :  10.1103/PhysRevB.86.174201

来源: SCIE

【 摘 要 】

In this paper we study numerically and experimentally the possibility of using metallic photonic crystals (PC's) of different geometries (log-piles, direct and inverse opals) as visible light sources. It is found that by tuning geometrical parameters of a direct opal PC one can achieve substantial reduction of the emissivity in the infrared along with its increase in the visible. We take into account disorder of the PC elements in their sizes and positions, and we get quantitative agreement between the numerical and experimental results. We analyze the influence of known temperature-resistant refractory host materials necessary for fixing the PC elements, and we find that PC effects become completely destroyed at high temperatures due to the host absorption. Therefore, creating PC-based visible light sources requires that low-absorbing refractory materials for the embedding medium be found.

【 授权许可】

Free