TY - JOUR
T1 - Topologically protected vector edge states and polarization beam splitter by all-dielectric valley photonic crystal slabs
AU - He, Lu
AU - Zhang, Huizhen
AU - Zhang, Weixuan
AU - Wang, Yujing
AU - Zhang, Xiangdong
N1 - Publisher Copyright:
© 2021 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
PY - 2021/9
Y1 - 2021/9
N2 - The polarization beam splitter (PBS) is the essential optical component, which is widely used in various optical instruments. Its robustness against perturbation is very necessary to all-optical classical and quantum networks. Here, we report the design of topologically protected vector edge states (dual-polarization with transverse electric and transverse magnetic modes) and PBS based on all-dielectric topological valley photonic crystal slabs. The topologically protected vector edge states have been realized for the first time using germanium photonic crystal slab with silica substrate. Based on such edge states, the topologically protected PBS has been designed and its robust property has been demonstrated by exact numerical simulations. Our proposed PBS is expected to be widespread applications for photonic integrated circuits and quantum information processing.
AB - The polarization beam splitter (PBS) is the essential optical component, which is widely used in various optical instruments. Its robustness against perturbation is very necessary to all-optical classical and quantum networks. Here, we report the design of topologically protected vector edge states (dual-polarization with transverse electric and transverse magnetic modes) and PBS based on all-dielectric topological valley photonic crystal slabs. The topologically protected vector edge states have been realized for the first time using germanium photonic crystal slab with silica substrate. Based on such edge states, the topologically protected PBS has been designed and its robust property has been demonstrated by exact numerical simulations. Our proposed PBS is expected to be widespread applications for photonic integrated circuits and quantum information processing.
KW - polarization beam splitter
KW - topological vector edge state
KW - valley photonic crystals
UR - http://www.scopus.com/inward/record.url?scp=85116038583&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/ac20eb
DO - 10.1088/1367-2630/ac20eb
M3 - Article
AN - SCOPUS:85116038583
SN - 1367-2630
VL - 23
JO - New Journal of Physics
JF - New Journal of Physics
IS - 9
M1 - 093026
ER -