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20142025
most citedGenerating PBHs and small-scale GWs in two-field models of inflation

186 citations

Showing physics.opticsShow all

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physics.optics2025

Zak Phase Dislocations in Trimer Lattices

Tileubek Uakhitov, Abdybek Urmanov, Serik E. Kumekov +1

Wave propagation in periodic media is governed by energy-momentum relation and geometric phases characterizing band topology, such as Zak phase in one-dimensional lattices. We demo…

physics.optics201730 cited

Spectral Signatures of Exceptional Points and Bifurcations in the Fundamental Active Photonic Dimer

Yannis Kominis, Vassilios Kovanis, Tassos Bountis

The fundamental active photonic dimer consisting of two coupled quantum well lasers is investigated in the context of the rate equation model. Spectral transition properties and ex…

physics.optics201743 cited

Controllable Asymmetric Phase-Locked States of the Fundamental Active Photonic Dimer

Yannis Kominis, Vassilios Kovanis, Tassos Bountis

Coupled semiconductor lasers are systems possessing complex dynamics that are interesting for numerous applications in photonics. In this work, we investigate the existence and the…

physics.optics201710 cited

Judiciously distributing laser emitters to shape the desired far field patterns

Constantinos A. Valagiannopoulos, Vassilios Kovanis

The far-field pattern of a simple one-dimensional laser array of emitters radiating into free space is considered. In the path of investigating the inverse problem for their near f…

physics.optics201643 cited

Epsilon-Near-Zero behavior from plasmonic Dirac point: theory and realization using two-dimensional materials

Marios Mattheakis, Constantinos A. Valagiannopoulos, Efthimios Kaxiras

The electromagnetic response of a two-dimensional metal embedded in a periodic array of a dielectric host can give rise to a plasmonic Dirac point that emulates Epsilon-Near-Zero (…