2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- V. Konotop2 profiles96 · h 53
- Rui Santos55 · h 38
- P. Ferreira3 profiles39 · h 27
- M. M. Telo da Gama2 profiles33 · h 25
- Y. Kartashov28 · h 54
- D. Zezyulin26 · h 23
- N. Araújo2 profiles22 · h 21
- M. Mühlleitner16 · h 52
- J. M. Tavares14 · h 23
- L. Torner13 · h 65
- M. Tasinkevych2 profiles13 · h 28
- J. P. Silva2 profiles12 · h 30
- University of LisbonPT321 papers
- Instituto Politécnico de LisboaPT99 papers
- Institute of Photonic SciencesES24 papers
- Universidade Federal do CearáBR23 papers
- University of MinhoPT22 papers
- Universitat Politècnica de CatalunyaES21 papers
- ETH ZurichCH20 papers
- Institute of SpectroscopyRU19 papers
- Instituto Superior TécnicoPT19 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Karlsruhe Institute of TechnologyDE17 papers
- University of AveiroPT16 papers
6 papers · 2 filters
Designing lasing and perfectly absorbing potentials
Vladimir V. Konotop, Evgeny Lakshtanov, Boris Vainberg
Existence of a spectral singularity (SS) in the spectrum of {a Schrödinger operator with} a non-Hermitian potential requires exact matching of parameters of the potential. We provi…
Spectral singularities of odd--symmetric potential
Vladimir V. Konotop, Dmitry A. Zezyulin
We describe one-dimensional stationary scattering of a two-component wave field by a non-Hermitian matrix potential which features odd- symmetry, i.e., symmetry with $(PT)^2=-1…
Coherent perfect absorber and laser for nonlinear waves in optical waveguide arrays
Dmitry A. Zezyulin, Herwig Ott, Vladimir V. Konotop
A localized non-Hermitian potential can operate as a coherent perfect absorber or as a laser for nonlinear waves. The effect is illustrated for an array of optical waveguides, with…
Route to chaos in a coupled microresonator system with gain and loss
Krzysztof Zegadlo, Nguyen Viet Hung, Vladimir V. Konotop +2
We consider chaotic dynamics of a system of two coupled ring resonators with a linear gain and a nonlinear absorption. Such a structure can be implemented in various settings inclu…
Odd-time reversal symmetry induced by anti--symmetric medium
Vladimir V. Konotop, Dmitry A. Zezyulin
We introduce an optical system (a coupler) obeying parity-time () symmetry with odd-time reversal, . It is implemented with two birefringent waveguides embedded in an a…
Linear and nonlinear coherent perfect absorbers on simple layers
Vladimir V. Konotop, Dmitry A. Zezyulin
We consider linear and nonlinear coherent perfect absorbers (CPAs) in multidimensional geometries and construct explicitly the respective perfectly absorbed solutions. The multidim…