TY - JOUR
T1 - Filtering properties of photonic crystal dual-channel tunable filter containing superconducting defects
AU - Liu, Jia Wei
AU - Chang, Tsung Wen
AU - Wu, Chien Jang
N1 - Funding Information:
Acknowledgements C.-J. Wu acknowledges the financial support from the National Science Council of the Republic of China (Taiwan) under Contract No. NSC-100-2112-M-003-005-MY3 and from the National Taiwan Normal University under NTNU100-D-01.
PY - 2014/1
Y1 - 2014/1
N2 - In this work, we analyze filtering properties in a photonic crystal (PC) dual-channel tunable filter. The filter structure containing twin superconducting thin films is denoted as (1/2) M S1(2/1) N S2(1/2) M . Here, 1 and 2 are dielectrics of SrTiO3 and Al2O3, respectively. S1 and S2 are two high-temperature superconducting thin films taken to be the typical system, YBa2Cu3O7-x . The two channel frequencies can be designed to locate within the photonic band gap (PBG) of the original PC (1/2) M . Channel frequencies can be significantly changed by changing N, the stack number of the center PC. With the use of superconducting defects, channel frequencies are temperature-dependent, that is, the filter is thermally tunable. The proposed filter structure is of technical use in superconducting photonic applications at terahertz frequency.
AB - In this work, we analyze filtering properties in a photonic crystal (PC) dual-channel tunable filter. The filter structure containing twin superconducting thin films is denoted as (1/2) M S1(2/1) N S2(1/2) M . Here, 1 and 2 are dielectrics of SrTiO3 and Al2O3, respectively. S1 and S2 are two high-temperature superconducting thin films taken to be the typical system, YBa2Cu3O7-x . The two channel frequencies can be designed to locate within the photonic band gap (PBG) of the original PC (1/2) M . Channel frequencies can be significantly changed by changing N, the stack number of the center PC. With the use of superconducting defects, channel frequencies are temperature-dependent, that is, the filter is thermally tunable. The proposed filter structure is of technical use in superconducting photonic applications at terahertz frequency.
KW - Filter
KW - Photonic band gap
KW - Photonic crystal
KW - Superconducting defect
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U2 - 10.1007/s10948-013-2259-4
DO - 10.1007/s10948-013-2259-4
M3 - Article
AN - SCOPUS:84894900579
SN - 1557-1939
VL - 27
SP - 67
EP - 72
JO - Journal of Superconductivity and Novel Magnetism
JF - Journal of Superconductivity and Novel Magnetism
IS - 1
ER -