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Conservation relations and anisotropic transmission resonances in one-dimensional PT-symmetric photonic heterostructures
Li Ge, Y. D. Chong, A. D. Stone
We analyze the optical properties of one-dimensional (1D) PT-symmetric structures of arbitrary complexity. These structures violate normal unitarity (photon flux conservation) but…
Steady-State Ab Initio Laser Theory for N-level Lasers
Alexander Cerjan, Yidong Chong, Li Ge +1
We show that Steady-state Ab initio Laser Theory (SALT) can be applied to find the stationary multimode lasing properties of an N-level laser. This is achieved by mapping the N-lev…
Perfect coupling of light to surface plasmons by coherent absorption
Heeso Noh, Yidong Chong, A. Douglas Stone +1
We show theoretically that coherent light can be completely absorbed in a two-dimensional or three-dimensional metallic nanostructure by matching the frequency and field pattern of…
Pump-induced Exceptional Points in Lasers
M. Liertzer, Li Ge, A. Cerjan +3
We demonstrate that the above-threshold behavior of a laser can be strongly affected by exceptional points which are induced by pumping the laser nonuniformly. At these singulariti…
Hidden Black: Coherent Enhancement of Absorption in Strongly-scattering Media
Y. D. Chong, A. Douglas Stone
We show that a weakly absorbing, strongly scattering (white) medium can be made very strongly absorbing at any frequency within its strong-scattering bandwidth by optimizing the in…
Unconventional modes in lasers with spatially varying gain and loss
Li Ge, Y. D. Chong, S. Rotter +2
We discuss a class of lasing modes created by a spatially inhomogeneous gain profile. These lasing modes are "extra modes", in addition to, and very different from, conventional la…