Optik Pub Date : 2020-09-21 , DOI: 10.1016/j.ijleo.2020.165636 Tao Zhang , Ming-Yu Mao , Yu Ma , Dan Zhang , Hai-Feng Zhang
In this paper, the graphene hyperbolic metamaterial (GHMM) and one-dimensional (1D) superconductor (YBa2Cu3O7-x) photonic crystals are combined to observe the Goos Hänchen (GH) shift by studying the lateral shift under the TE wave in the terahertz (THz) regime. GHMM consists of a monolayer of graphene and a layer of conventional dielectric. It indicates that the proposed 1D dielectric structure can produce a larger GH shift. The movements of the GH shifts can be observed through tailoring the dielectric length and three parameters of graphene which are chemical potential, phenomenon scattering rate, and temperature, respectively. Moreover, the relationship between the GH shift and the real part of nG for the GHMM (RnG) also is studied. We find that altering the above four parameters to produce the larger GH shifts is mainly concentrated in the frequency range of 30-50 THz and 70- 90 THz, and the larger RnG can lead to the more obvious GH shift.
中文翻译:
石墨烯双曲线超材料和一维超导光子晶体的混合物传输的光的GoosHänchen位移的影响
通过研究石墨烯双曲超材料(GHMM)和一维(1D)超导体(YBa 2 Cu 3 O 7-x)光子晶体,通过研究TE下的横向位移来观察GoosHänchen(GH)位移。太赫兹(THz)模式的电磁波。GHMM由单层石墨烯和一层常规电介质组成。这表明所提出的一维电介质结构可以产生更大的GH位移。可以通过调整介电长度和石墨烯的三个参数(分别是化学势,现象散射率和温度)来观察GH位移的运动。而且,GH偏移与GHMM的n G的实部之间的关系(Rn G)也被研究。我们发现,改变以上四个参数产生较大的GH偏移主要集中在30-50 THz和70-90 THz的频率范围内,而较大的Rn G可以导致更明显的GH偏移。