光子晶体Dirac点周围的性质是国际的一个研究热点,我们基于厄米算符本征方程形式的麦克斯韦方程和微扰论,引入破坏空间反演对称性和时间反演对称性的扰动,严格推导出Dirac点被打开后其周围的等效哈密顿量,并指出前人工作的一些基本错误.该哈密顿量具有广泛的用途,例如,可以用来描述光在光子晶体块材(bulk)中的传播性质和求解有限光子晶体的边界态等等.
参考文献
| [1] | Qi, X.-L.;Zhang, S.-C. .Topological insulators and superconductors[J].Reviews of Modern Physics,2011(4):1057-1110. |
| [2] | S. Raghu;F. D. M. Haldane .Analogs of quantum-Hall-effect edge states in photonic crystals[J].Physical Review, A,2008(3 Pt.2):033834:1-033834:21. |
| [3] | F.D.M. Haldane;S. Raghu .Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry[J].Physical review letters,2008(1):013904.1-013904.4. |
| [4] | Zheng Wang;Y. D. Chong;John D. Joannopoulos;Marin Soljacic .Reflection-Free One-Way Edge Modes in a Gyromagnetic Photonic Crystal[J].Physical review letters,2008(1):013905.1-013905.4. |
| [5] | Zheng Wang;Yidong Chong;J. D. Joannopoulos;Marin Soljacic .Observation of unidirectional backscattering-immune topological electromagnetic states[J].Nature,2009(Oct.8 TN.7265):702-703. |
| [6] | Jin-Xin Fu;Rong-Juan Liu;Zhi-Yuan Li .Robust one-way modes in gyromagnetic photonic crystal waveguides with different interfaces[J].Applied physics letters,2010(4):041112-1-041112-3. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%