Characteristic analysis of photonic crystal resonant cavity in the terahertz region

Abstract

In this letter, a kind of two-dimensional photonic crystal structure applicable to THz devices is designed, and how to form a microcavity in this structure is discussed. The primary properties of the resonant cavity are analyzed, in which plane wave expansion method is used to make the calculation and the simulation. We’ve studied the variation of the bandgap structure and resonant frequency in THz region by changing the parameters, such as lattice constant, dielectric constant contrast and filling factor. The research results provided theoretical support for manufacturing the THz devices and the application of THz system.

References

[1] SiegelP.H.Microwave Theory and TechniquesIEEE Transactions, 2002, 50: 910

[2] KohlerR., TredicucciA., BeltramF., Beere HarveyE., Linfield EdmundH., GilesD. A., Ritchie DavidA., Lotti RitaC., FaustoR.. Nature, 2002, 417: 156

[3] HuB.B., NussM.C.. Optics Letters, 1995, 20: 1716

[4] KodoK., YuichiO., YuukiW., HiroyukiI.. Optics Express, 2003, 11: 2549

[5] HanP.Y., ChoG.C., ZhangX.C.. Opt.Lett., 2000, 25: 242

[6] YablonovitchE.. Phys.Rev.Lett, 1987, 58: 2059

[7] JohnS.. Phys.Rev.Lett, 1987, 58: 2486

[8] VilleneuveP.R., FanS., JoannopoulosJ.D.. Phys.Rev.B, 1996, 54: 7837

[9] YarivA.. Optical Electronics in Modern Communications, 2004, Beijing, Publishing House of Electronics Industry, 109-111

[10] WAN Jun, ZHANG Chun, WANG Ling-jun and ZI Jian, Physics, 28 (1999).

[11] GuoS., AlbinS.. Opti.Exp, 2003, 11: 167

[12] GuoS.-hong.. Electrodynamics, 2001, Beijing, Higher Education Press, 19-24

[13] HuangK.. Solid State Physic, 2001, Beijing, Higher Education Press, 154-157

[14] Zi-Gui Huang and Tsung-Tsong Wu, IEEE Ultrasonics Symposium, (2005), 77

[15] TianY., WangY., SunG.. Modern Scientific Instruments, 2006, 2: 51

[16] Prather D.W and Chunchen Lin, 3^rd IEEE International Conference, (2006), 240