Tunneling effect in cavity-resonator-coupled arrays
Ma Hua (马华)a, Qu Shao-Bo (屈绍波)b, Liang Chang-Hong (梁昌红)c, Zhang Jie-Qiu (张介秋)b, Xu Zhuo (徐卓)a, Wang Jia-Fu (王甲富)b
a Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China; b The College of Science, Air Force University of Engineering, Xi'an 710051, China; c The College of electronic Engineering, Xidian University, Xi'an 710126, China
Abstract The quantum tunneling effect (QTE) in a cavity-resonator-coupled (CRC) array was analytically and numerically investigated. The underlying mechanism was interpreted by treating electromagnetic waves as photons, and then was generalized to acoustic waves and matter waves. It is indicated that for the three kinds of waves, the QTE can be excited by cavity resonance in a CRC array, resulting in sub-wavelength transparency through the narrow splits between cavities. This opens up opportunities for designing new types of crystals based on CRC arrays, which may find potential applications such as quantum devices, micro-optic transmission, and acoustic manipulation.
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