Abstract:
:High quality factor (High-Q) and transmission optical devices are required for various applications in the fields of physics and engineering. Critical for these applications is the realization of a structure with high-Q, complete transmission and small volume. A robust high-Q filter with complete transmission by conjugated topological photonic crystals (CTPC) is presented. The study shows that an ultra-high-Q of more than 108 with complete transmission is obtained by the CTPC with 2 μm long due to the excitation of conjugated topological edge-states (CTES). It is also found that even though the quality factor of resonances increases as the periodic number of multilayers increases, these resonances are still complete transmission. A novel concept of CTES is first proposed in this study and investigated the effect of its topological phenomenon on high quality factor via CTPC. We theoretically realize the robust high-Q and complete transmission in the CTPC, which is different from those in periodic, quasi-periodic, Fabry-Perot photonic crystals and traditional topological photonic crystals (TPC).
journal_name
Sci Repjournal_title
Scientific reportsauthors
Lin YC,Chou SH,Hsueh WJdoi
10.1038/s41598-020-64076-3subject
Has Abstractpub_date
2020-04-27 00:00:00pages
7040issue
1issn
2045-2322pii
10.1038/s41598-020-64076-3journal_volume
10pub_type
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