Simulation Research Of "Mesoscopic Temperature And Light Effect" Based On Two Dimensional Photonic Crystal

Low dimensional and mesoscopic systems represent amajor field of condensed matter physics. This paper mainly deals with the study of the "mesoscopic temperature and light effect" of two dimensional triangular lattice photonic crystals. And design and research of a kind of micro cavity model sensor based on the structure. The results show that the temperature change has a great influence on the refractive index, the dielectric radius and the change of the photonic band gap of the photonic crystal. When the ambient temperature rises, the photonic band gap translation(the direction of the wave growth), the band gap becomes narrow, and the center wavelength of the band gap has a linear relationship with the temperature change. The micro cavity sensor research results show that the structure of micro cavity sensor has higher sensitivity and better linear change in resonant frequency, the sensor uses the mesoscopic temperature light effect is detected, namely using photonic crystal alternative original temperature measuring elements, using photonic crystal photonic band gap and resonant frequency with the characteristics of the external temperature changes, get the relationship between the photonic crystal resonant frequency and temperature, higher detection resolution.The first chapter of this paper mainly introduces the research background, the development trend and the significance of the research.The second chapter introduces the concept and properties of photonic crystal, preparation method, and then introduces some applications of photonic crystals.In the third chapter, the two dimensional photonic crystal is introduced from three aspects: the research method, the application software and the electromagnetic theory.The fourth chapter,The mesoscopic temperature and light effect on Two-dimensionaltriangular photonic crystals were studied by FDTD method. introduces coefficients of the mesoscopic temperature and light, get theoretical values =0.336nm/?. This provides a theoretical reference for production and use of A two-dimensional photonic crystal Optical device.In the fifth chapter, the point defect of two-dimensional photonic crystal is studied in detail, The effects of temperature change on the shape, refractive index and resonant frequency of micro cavity photonic crystals are discussed, The band structure and defect mode of photonic crystal are calculated and analyzed by using the plane wave expansion method; The structure and the structure of the defect mode are calculated with the change of the parameters, and the results are given in detail.The sixth chapter is a review and summary of the full text.