Uniaxial Stress's Influences Upon Transmission Characteristics Of Photonic Crystal Structure

With the continuous development in the field of photonic crystals, the research and application of the devices based on photonic crystal structure have gained more and more people's attention, which also contributed to the breakthrough made on the basic research of the related fields with continuous new development.Photonic crystal is greatly liable to replace the traditional electronic semiconductor materials and becomes a new favorite of the next generation in the field of communications and sensing.Especially in micro-electromechanical systems (MEMS) and nano electromechanical systems (NEMS), the continued miniaturization of the device has caused a constantly strengthened quantum effect. The inter-influencing factors as e-fermions have seriously hampered the development of technology..In order to adapt to the development of the times, breaking the traditional sensing mechanism of electromechanical conversion to explore the control principle of mechanical force upon photons, we have introduced photonic crystal to study mechanical force's modulation towards photon movements.In accordance with the requirements of the National Natural Science Foundation of China (No. 60776062), according to the theory of photonic crystal research and compared to the research ideas of piezoresistive effect in mesoscopic among 973 projects of national defense, this paper selects the one-dimensional photonic crystal structure as the research object and try to analyze the transformation of transmission spectrum line with the axial stress.First, the paper reviews the research results about theory and application of electronic crystal. Electronic in a semiconductor follows the Schrodinger equation and semiconductor materials have band characteristics. Electronic will produce the resonant tunneling effect when going through semiconductor barrier structures. We apply the tunnel effect's sensitivity towards the quantum well structures (including the width and height of the well barrier) to the electromechanical conversion in order to get the meso-piezoptic effect which is different from the piezoresistive effect. Secondly, through the analysis of the basic theory of photonic crystals, select the simplest one-dimensional structure to analyze the transmission spectrum of photonic crystals with the transfer matrix algorithm. And then we analyze mechanical quantities'influence upon the transmission spectrum line by the introduction of the influence factors of mechanical quantities over the photonic crystal structure.Finally, through the comparison of the stress situation under various structures, we find that the center transmission peak under the structure of defect mode shows a violently rapid change, and this change is named the mesoscopic effect. Finally, we give a pressure coefficient to measure the strength of this effect.To sum up,based on the analysis and understanding of the piezoresistive effect in mesoscopic, the paper tries to explore a similar effect in photonic crystals, to build an appropriate model to calculate and analyze the transmission conditions when the photons go through the photonic crystals with specific structures ,and finally to find the meso-piezoptic effect.