Abstract:
:Polarization of optical fields is a crucial degree of freedom in the all-optical analogue of electromagnetically induced transparency (EIT). However, the physical origins of EIT and polarization-induced phenomena have not been well distinguished, which can lead to confusion in associated applications such as slow light and optical/quantum storage. Here we study the polarization effects in various optical EIT systems. We find that a polarization mismatch between whispering gallery modes in two indirectly coupled resonators can induce a narrow transparency window in the transmission spectrum resembling the EIT lineshape. However, such polarization-induced transparency (PIT) is distinct from EIT: It originates from strong polarization rotation effects and shows a unidirectional feature. The coexistence of PIT and EIT provides additional routes for the manipulation of light flow in optical resonator systems.
journal_name
Proc Natl Acad Sci U S Aauthors
Wang C,Jiang X,Sweeney WR,Hsu CW,Liu Y,Zhao G,Peng B,Zhang M,Jiang L,Stone AD,Yang Ldoi
10.1073/pnas.2012982118subject
Has Abstractpub_date
2021-01-19 00:00:00issue
3eissn
0027-8424issn
1091-6490pii
2012982118journal_volume
118pub_type
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