56 citations · 70 across the 4 of their papers we have counts for
6 papers
Selective Excitation of Subwavelength Atomic Clouds
Rasoul Alaee, Akbar Safari, Robert W. Boyd
A dense cloud of atoms with randomly changing positions exhibits coherent and incoherent scattering. We show that an atomic cloud of subwavelength dimensions can be modeled as a si…
Superscattering, Superabsorption, and Nonreciprocity in Nonlinear Antennas
Lin Cheng, Rasoul Alaee, Akbar Safari +3
We propose tunable nonlinear antennas based on an epsilon-near-zero material with a large optical nonlinearity. We show that the absorption and scattering cross sections of the ant…
Kerker Effect, Superscattering, and Scattering Dark State in Atomic Antennas
Rasoul Alaee, Akbar Safari, Vahid Sandoghdar +1
We study scattering phenomena such as the Kerker effect, superscattering, and scattering dark states in a subwavelength atomic antenna consisting of atoms with only electric dipole…
Terahertz Nonlinear Optical Response of Water Vapor
Payman Rasekh, Akbar Safari, Murat Yildirim +4
We report on the nonlinear spectroscopy of water vapor at THz frequencies. Atmospheric water vapor has a rich spectrum with several strong resonances at frequencies below 3 THz, fa…
Measurement of the Photon-Plasmon Coupling Phase
Akbar Safari, Robert Fickler, Enno Giese +3
Scattering processes have played a crucial role in the development of quantum theory. In the field of optics, scattering phase shifts have been utilized to unveil interesting forms…
Generation of Caustics and Spatial Rogue Waves from Nonlinear Instability
Akbar Safari, Robert Fickler, Miles J. Padgett +1
Caustics are natural phenomena in which nature concentrates the energy of waves. Although, they are known mostly in optics, caustics are intrinsic to all wave phenomena. For exampl…