Frontiers of Optoelectronics, Volume. 7, Issue 1, 53(2014)
Misalignments among stacked layers of metamaterial terahertz absorbers
Misalignment among stacked layers of absorbers is inevitable in practice. Adverse effects induced by this undesired factor was investigated and analyzed in this paper. The absorption responses of thin terahertz metamaterial (MM) absorber with different degree of misalignment were simulated by finite-difference time-domain (FDTD) method under both transverse magnetic (TM) and transverse electric (TE) polarization. Results show that slight misalignment deteriorates absorption response due to the decreased spatial resolution. The analyses are given in terms of the magnetic field distribution in the cross section. In addition, the depravation is changed with polarization, which depends on the direction of excursion.
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Yinghui GUO, Lianshan YAN, Wei PAN, Bin LUO, Xiantao ZHANG, Xiangang LUO. Misalignments among stacked layers of metamaterial terahertz absorbers[J]. Frontiers of Optoelectronics, 2014, 7(1): 53
Received: Sep. 22, 2013
Accepted: Nov. 1, 2013
Published Online: Jul. 10, 2014
The Author Email: YAN Lianshan (lsyan@home.swjtu.edu.com)