摘要
光子晶体因其具有光子局域和光子带隙这两大特征,而使得传统物理过程在光子晶体中有新的特点和变化,能量传递就是其中之一。分析了光子晶体中发光体的能量传递现象,并探索了其过程作用机制。采用了偶极-偶极共振相互作用模型,对理想一维光子晶体中带隙调制下的能量传递过程进行了研究,利用微扰法与色散关系的计算引入获得跃迁矩阵,并运用其对影响光子晶体中能量传递的因素和机制进行了相关讨论。
Photonic crystal materials （PCs） are the new research fields of materials in the recent years.Because of its features of photonic localization and photonic band gap （PBG）, the photonic crystals changed traditional physical processes in it, and some new features and phenomena occur. The energy transfer in the photonic crystals is also affected. Through the research of energy transfer in PCs, a theory basis of this process will be established to guide the preparation experiments of luminous materials based on the PCs. In this paper, a kind of semi-classical theory was proposed based on the theory of photonic crystals and energy transfer in solid state to explain and analyze the process of energy transfer in 1-D PBG. A method to solve the similar problems was also generalized. We found out that the resonance dipole-dipole interaction （RDDI） plays a major role in the energy transfer. Effects of the photonic band gap modulation are reflected on the dispersion relation. So the dispersion relation can be introduced into the calculation of transition matrix. The related factors and mechanisms of the discussion about the energy transfer in PCs are concluded, finaly.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2009年第2期157-161,共5页
Chinese Journal of Luminescence
基金
国家自然科学基金(10774087)资助项目
关键词
光子晶体
能量传递
光子带隙
色散关系
RDDI
photonic crystals
energy transfer
photonic band gap
dispersion relation
RDDI
