TY - JOUR
T1 - Observation of localized ground and excited orbitals in graphene photonic ribbons
AU - Cantillano, Camilo
AU - Mukherjee, Sebabrata
AU - Morales-Inostroza , Luis
AU - Real, Bastian
AU - Cáceres, Gabriel
AU - Hermann, Carla
AU - Thomson, Robert R.
AU - Vicencio, Rodrigo A.
PY - 2018/3/29
Y1 - 2018/3/29
N2 - We report on the experimental realization of a quasi-one-dimensional photonic graphene ribbon supporting four flat-bands. We study the dynamics of fundamental and dipolar modes, which are analogous to the s and p orbitals, respectively. In the experiment, both modes (orbitals) are effectively decoupled from each other, implying two sets of six bands, where two of them are completely flat (dispersionless). Using an image generator setup, we excite the s and p flat-band modes and demonstrate their non-diffracting propagation for the first time. Our results open an exciting route towards photonic emulation of higher orbital dynamics.
AB - We report on the experimental realization of a quasi-one-dimensional photonic graphene ribbon supporting four flat-bands. We study the dynamics of fundamental and dipolar modes, which are analogous to the s and p orbitals, respectively. In the experiment, both modes (orbitals) are effectively decoupled from each other, implying two sets of six bands, where two of them are completely flat (dispersionless). Using an image generator setup, we excite the s and p flat-band modes and demonstrate their non-diffracting propagation for the first time. Our results open an exciting route towards photonic emulation of higher orbital dynamics.
KW - Waveguide lattices
KW - Periodic structures
KW - Flat-bands
KW - Orbital excitation
U2 - 10.1088/1367-2630/aab483
DO - 10.1088/1367-2630/aab483
M3 - Article
SN - 1367-2630
VL - 20
JO - New Journal of Physics
JF - New Journal of Physics
M1 - 033028
ER -