297 citations · 1.2k across the 18 of their papers we have counts for
19 papers
Spiraling light: Generating optical tornados
Dimitris Mansour, Apostolos Brimis, Konstantinos G. Makris +1
We experimentally generate optical tornado waves using spatial multiplexing on a single-phase modulation device. In their focal region, the intensity pattern outlines a spiral of d…
Thermalization of the Ablowitz-Ladik lattice in the presence of non-integrable perturbations
Mahmoud A. Selim, Georgios G. Pyrialakos, Fan O. Wu +4
We investigate the statistical mechanics of the photonic Ablowitz-Ladik lattice, the integrable version of the discrete nonlinear Schrödinger equation. In this regard, we demonstra…
Thermalization of light's orbital angular momentum in nonlinear multimode waveguide systems
Fan O. Wu, Qi Zhong, Huizhong Ren +3
We show that the orbital angular momentum (OAM) of a light field can be thermalized in a nonlinear cylindrical multimode optical waveguide. We find, that upon thermal equilibrium,…
Transforming space with non-Hermitian dielectrics
Ivor Krešić, Konstantinos G. Makris, Ulf Leonhardt +1
Coordinate transformations are a versatile tool to mould the flow of light, enabling a host of astonishing phenomena such as optical cloaking with metamaterials. Moving away from t…
Light confinement by local index tailoring in inhomogeneous dielectrics
I. Krešić, K. G. Makris, S. Rotter
The engineering of light confinement is a topic with a long history in optics and with significant implications for the control of light-matter interaction. In inhomogeneous and di…
Nonlinear control of PT-symmetry and non-Hermitian topological states
Shiqi Xia, Dimitrios Kaltsas, Daohong Song +6
Advances in topological photonics and non-Hermitian optics have drastically changed our perception on how interdisciplinary concepts may empower unprecedented applications. Bridgin…
Transport and spectral features in non-Hermitian open systems
A. F. Tzortzakakis, K. G. Makris, A. Szameit +1
We study the transport and spectral properties of a non-Hermitian one-dimensional disordered lattice, the diagonal matrix elements of which are random complex variables taking both…
Non-Hermitian disorder in two-dimensional optical lattices
A. F. Tzortzakakis, K. G. Makris, E. N. Economou
In this paper, we study the properties of two-dimensional lattices in the presence of non-Hermitian disorder. In the context of coupled mode theory, we consider random gain-loss di…
Thermodynamic conditions governing the optical temperature and chemical potential in nonlinear highly multimoded photonic systems
Midya Parto, Fan O. Wu, Pawel S. Jung +2
We show that, in general, any complex weakly nonlinear highly multimode system can reach thermodynamic equilibrium that is characterized by a unique temperature and chemical potent…
Scattering-free pulse propagation through invisible non-Hermitian disorder
Andre Brandstötter, Konstantinos G. Makris, Stefan Rotter
We demonstrate a new design principle for unidirectionally invisible non-Hermitian structures that are not only invisible for one specific wavelength but rather for a broad frequen…
Constant-pressure sound waves in non-Hermitian disordered media
Etienne Rivet, Andre Brandstötter, Konstantinos G. Makris +3
When waves impinge on a disordered material they are back-scattered and form a highly complex interference pattern. Suppressing any such distortions in the free propagation of a wa…
Optical fluxes in coupled -symmetric photonic structures
Li Ge, Konstantinos G. Makris, Lingxuan Zhang
In this work we first examine transverse and longitudinal fluxes in a -symmetric photonic dimer using a coupled-mode theory. Several surprising understandings are obtained…
Wave propagation through disordered media without backscattering and intensity variations
Konstantinos G. Makris, Andre Brandstötter, Philipp Ambichl +2
A fundamental manifestation of wave scattering in a disordered medium is the highly complex intensity pattern the waves acquire due to multi-path interference. Here we show that th…
Nonparaxial abruptly autofocusing beams
Raluca-Sorina Penciu, Konstantinos G. Makris, Nikolaos K. Efremidis
We study nonparaxial autofocusing beams with pre-engineered trajectories. We consider the case of linearly polarized electric optical beams and examine their focusing properties su…
Scattering in and Symmetric Multimode Waveguides: Generalized Conservation Laws and Spontaneous Symmetry Breaking beyond One Dimension
Li Ge, Konstantinos G. Makris, Demetrios N. Christodoulides +1
We extend the generalize conservation law of light propagating in a one-dimensional -symmetric system, i.e., for the transmittance and the reflec…
PT-symmetry breaking in the steady state of microscopic gain-loss systems
Kosmas V. Kepesidis, Thomas J. Milburn, Julian Huber +3
The phenomenon of PT (parity- and time-reversal) symmetry breaking is conventionally associated with a change in the complex mode spectrum of a non-Hermitian system that marks a tr…
Anomalous transient amplification of waves in non-normal photonic media
Konstantinos G. Makris, Li Ge, Hakan E. Tureci
Dissipation is a ubiquitous phenomenon in dynamical systems encountered in nature because no finite system is fully isolated from its environment. In optical systems, a key challen…
Scalable numerical approach for the steady-state ab initio laser theory
S. Esterhazy, D. Liu, M. Liertzer +7
We present an efficient and flexible method for solving the non-linear lasing equations of the steady-state ab initio laser theory. Our strategy is to solve the underlying system o…
Breaking of PT-symmetry in bounded and unbounded scattering systems
Philipp Ambichl, Konstantinos G. Makris, Li Ge +3
PT-symmetric scattering systems with balanced gain and loss can undergo a symmetry-breaking transition in which the eigenvalues of the non-unitary scattering matrix change their ph…