The Optical Properties Of Resonance Mode In Metal-Dielectric Hybrid Crystal

Micro-and nano-photonic structures are one of the main research subjects in optoelectronics currently, involving photonic crystals, surface plasmon polaritons (SPP) and metamaterials. Through these photonic structures, we can control the characteristics of electromagnetic wave. So far, micro-and nano-photonic structures have already developed for about30years. During this time, several problems have been solved and its application prospects have attracted great interest in various fields such as communications, military and aerospace. However, it is undeniable that there are still many difficulties and challenges. Among them, high dissipation in metal structure is one of the most prominent problems.In this thesis, the fabrication, theoretical simulation and spectral characterization techniques of micro-and nano-photonic structures have been discussed. Based on these, the modulation of spontaneous emission via surface modes in metal-dielectric hybrid crystal have been analyzed and studied deeply. It mainly includes:Firstly, the conventional self-assembly method of capillary cavity has been improved. By selecting the suitable concentration of polystyrene micro-spheres and the diameter of copper wire, a monolayer array of micro-spheres can be prepared at low cost under the effect of capillary force and surface tension.Secondly, based on the transmission characteristics of electromagnetic waves in periodic nano-material, macro-and micro-angle resolution spectrum systems have been designed and built. They can measure the characteristics of spectral response at different angles. The micro system, in particular, has the unique advantage in angular resolution and size of incident light spot. Moreover, according to these systems, we can obtain the information of photonic isofrequency curves and band structures with a snapshot.Thirdly, the optical response of a structure, which consists of a low-cost metallic surface coated with a monolayer array of PS sub-micrometre spheres, has been investigated. The results show that this periodic metal-dielectric hybrid system supports Guide modes and SPP modes and both of them have obvious dispersion characteristics. Compared with the all-metal construction, SPP modes in this structure have less material absorption and longer transmission distance. This kind of periodic metal-dielectric hybrid system might be a good choice to realize new SPP devices in the future. Fourthly, spontaneous emission modulation via surface resonance mode in our periodic metal-dielectric hybrid system has been studied. When the spatial and spectral overlap between emitters and the surface resonance modes is achieved, the enhancement of directional spontaneous emission and the modulation of coherence can be observed successfully. So based on the concept presented here, novel coherent fluorescence-based light sources with low energy consumption may be developed. This will have important potential applications on imaging, sensing and even new generation energy technologies.Finally, based on our metal-dielectric hybrid system, some novel optical properties of our structure has been studied with FDTD. The result shows that our hybrid structure is very sensitive to the compressive stress, which could provide a reference to the design of pressure sensor based on SPP. At the same time, for the existence of surface mode and the strong local electromagnetic fields, our sample shows a strong geometry chirality. When the electromagnetic wave incident obliquely, our metal-dielectric hybrid system shows different responses to left-handed and right-handed light.