33 citations · 74 across the 4 of their papers we have counts for
4 papers
Cavity controlled spectral singularity
K. Nireekshan Reddy, S. Dutta Gupta
We study theoretically a PT-symmetric saturable balanced gain-loss system in a ring cavity configuration. The saturable gain and loss are modeled by two-level medium with or withou…
Gap solitons with null-scattering
K. Nireekshan Reddy, S. Dutta Gupta
We study excitation of gap solitons under the conditions of coherent perfect absorption (CPA). Our system consists of a symmetric periodic structure with alternating Kerr nonlinear…
Light-controlled perfect absorption of light
K. Nireekshan Reddy, S. Dutta Gupta
We study coherent perfect absorption (CPA) of light in a Kerr nonlinear metal-dielectric composite medium, illuminated from the opposite ends. Elementary symmetry considerations re…
Nonlinearity Induced Critical Coupling
K. Nireekshan Reddy, Achanta Venu Gopal, S. Dutta Gupta
We study a critically coupled system (Opt. Lett., \textbf{32}, 1483 (2007)) with a Kerr-nonlinear spacer layer. Nonlinearity is shown to inhibit null-scattering in a critically cou…