13 citations · 17 across the 3 of their papers we have counts for
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physics.optics2012★ 3 cited
Asymmetric optical amplifier based on parity-time symmetry
Rujiang Li, Pengfei Li, Lu Li
We design and optimize a waveguide structure consisted of three segments of PT-symmetric coupler. It can amplify the difference mode with the attenuation of the sum mode, so perfor…
physics.optics2012★ 1 cited
Beam Dynamics in a Double-Channel Waveguide with Gain and Loss
Pengfei Li, Rujiang Li, Lu Li
A double-channel waveguide with gain and loss is addressed and the corresponding coupled-mode equations are established by employing the coupled mode approach. Based on the coupled…
physics.optics2012★ 13 cited
Optical Modes in PT-Symmetric Double-Channel Waveguides
Li Chen, Rujiang Li, Na Yang +2
We investigate the unique properties of various analytical optical modes, including the fundamental modes and the excited modes, in a double-channel waveguide with parity-time (PT)…