313 citations · 849 across the 19 of their papers we have counts for
19 papers
Broadband Omni-resonant Coherent Perfect Absorption in Graphene
Ali K. Jahromi, Massimo L. Villinger, Ahmed El Halawany +4
Coherent perfect absorption (CPA) refers to interferometrically induced complete absorption of incident light by a partial absorber independently of its intrinsic absorption (which…
Non-diffracting broadband incoherent space-time fields
Murat Yessenov, Basanta Bhaduri, H. Esat Kondakci +3
Space-time (ST) wave packets are coherent pulsed beams that propagate diffraction-free and dispersion-free by virtue of tight correlations introduced between their spatial and temp…
What is the maximum differential group delay achievable by a space-time wave packet in free space?
Murat Yessenov, Lam Mach, Basanta Bhaduri +5
The group velocity of 'space-time' wave packets propagation-invariant pulsed beams endowed with tight spatio-temporal spectral correlations can take on arbitrary values in…
Self-healing of space-time light sheets
H. Esat Kondakci, Ayman F. Abouraddy
Space-time wave packets are diffraction-free, dispersion-free pulsed beams whose propagation-invariance stems from correlations introduced into their spatio-temporal spectrum. We d…
Classical entanglement underpins the propagation invariance of space-time wave packets
H. Esat Kondakci, Miguel A. Alonso, Ayman F. Abouraddy
Space-time wave packets are propagation-invariant pulsed beams that travel in free space without diffraction or dispersion by virtue of tight correlations introduced into their spa…
Optical space-time wave packets having arbitrary group velocities in free space
H. Esat Kondakci, Ayman F. Abouraddy
Controlling the group velocity of an optical pulse typically requires traversing a material or structure whose dispersion is judiciously crafted. Alternatively, the group velocity…
Classification of propagation-invariant space-time wave packets in free space: Theory and experiments
Murat Yessenov, Basanta Bhaduri, H. Esat Kondakci +1
Introducing correlations between the spatial and temporal degrees of freedom of a pulsed optical beam (or wave packet) can profoundly alter its propagation in free space. Indeed, a…
Diffraction-free space-time beams
H. Esat Kondakci, Ayman F. Abouraddy
Diffraction-free optical beams propagate freely without change in shape and scale. Monochromatic beams that avoid diffractive spreading require two-dimensional transverse profiles,…
Interferometric control of the photon-number distribution
H. Esat Kondakci, Alexander Szameit, Ayman F. Abouraddy +2
We demonstrate deterministic control over the photon-number distribution by interfering two coherent beams within a disordered photonic lattice. By sweeping a relative phase betwee…
Compressive optical interferometry
Davood Mardani, H. Esat Kondakci, Lane Martin +2
Compressive sensing (CS) combines data acquisition with compression coding to reduce the number of measurements required to reconstruct a sparse signal. In optics, this usually tak…
Demonstration of an optical-coherence converter
Chukwuemeka O. Okoro, H. Esat Kondakci, Ayman F. Abouraddy +1
Studying the coherence of an optical field is typically compartmentalized with respect to its different optical degrees of freedom (DoFs) -- spatial, temporal, and polarization. Al…
Transparent Perfect Mirror
Ali K. Jahromi, Soroush Shabahang, H. Esat Kondakci +3
A mirror that reflects light fully and yet is transparent appears paradoxical. Current so-called transparent or "one-way" mirrors are not perfectly reflective and thus can be disti…
Incoherent lensless imaging via coherency back-propagation
Ahmed El-Halawany, Andre Beckus, H. Esat Kondakci +4
The two-point complex coherence function constitutes a complete representation for scalar quasi-monochromatic optical fields. Exploiting dynamically reconfigurable slits implemente…
Coherence measurements of scattered incoherent light for lensless identification of an object's location and size
H. Esat Kondakci, Andre Beckus, Ahmed El Halawany +3
In absence of a lens to form an image, incoherent or partially coherent light scattering off an obstructive or reflective object forms a broad intensity distribution in the far fie…
Omni-resonant optical micro-cavity
Soroush Shabahang, H. Esat Kondakci, Massimo L. Villinger +3
Optical cavities are a cornerstone of photonics. They are indispensable in lasers, optical filters, optical combs and clocks, in quantum physics, and have enabled the detection of…
Basis-neutral Hilbert-space analyzers
Lane Martin, Davood Mardani, H. Esat Kondakci +7
Interferometry is one of the central organizing principles of optics. Key to interferometry is the concept of optical delay, which facilitates spectral analysis in terms of time-ha…
A photonic thermalization gap in disordered lattices
H. E. Kondakci, A. F. Abouraddy, B. E. A. Saleh
The formation of gaps -- forbidden ranges in the values of a physical parameter -- is a ubiquitous feature of a variety of physical systems: from energy bandgaps of electrons in pe…
Sub-thermal to super-thermal light statistics from a disordered lattice via deterministic control of excitation symmetry
H. E. Kondakci, A. Szameit, A. F. Abouraddy +2
Monochromatic coherent light traversing a disordered photonic medium evolves into a random field whose statistics are dictated by the disorder level. Here we demonstrate experiment…
Hanbury Brown and Twiss anticorrelation in disordered photonic lattices
H. Esat Kondakci, Lane Martin, Robert Keil +5
We report measurements of Hanbury Brown and Twiss correlation of coherent light transmitted through disordered one-dimensional photonic lattices. Although such a lattice exhibits t…