8 citations · 9 across the 4 of their papers we have counts for
4 papers
High-Directional Wave Propagation in Periodic Gain/Loss Modulated Materials
N. Kumar, M. Botey, R. Herrero +2
Amplification/attenuation of light waves in artificial materials with a gain/loss modulation on the wavelength scale can be sensitive to the propagation direction. We give a numeri…
Localization of light by magnetically tuned correlated disorder: Trapping of light in ferrofluids
M. Shalini, Hema Ramachandran, N. Kumar
The mean free path of light () calculated for elastic scattering on a system of nanoparticles with spatially correlated disorder is found to have a minimum when the correlatio…
Deflection of ultra slow light under gravity
N. Kumar
Recent experiments on ultra slow light in strongly dispersive media by several research groups reporting slowing down of the optical pulses down to speeds of a few metres per secon…
Levy statistical fluctuations from a Random Amplifying Medium
Divya Sharma, Hema Ramachandran, N. Kumar
We report the studies of emission from a novel random amplifying medium that we term a ``Levy Laser'' due to the non-Gaussian statistical nature of its emission over the ensemble o…