activity
20182025
most citedTopology of photonic time-crystals

349 citations · 740 across the 5 of their papers we have counts for

collaborators

5 papers

physics.optics2025★ 3 cited

2D Topological Edge States in Periodic Space-Time Interfaces

Ohad Segal, Yonatan Plotnik, Eran Lustig +4

Topological edge states in systems of two (or more) dimensions offer scattering-free transport, exhibiting robustness to inhomogeneities and disorder. In a different domain, time-m…

physics.optics2023

Time-refraction and time-reflection above critical angle for total internal reflection

Lior Bar-Hillel, Alex Dikopoltsev, Amit Kam +4

We study the time-reflection and time-refraction of waves caused by a spatial interface with a medium undergoing a sudden temporal change in permittivity. We show that monochromati…

physics.optics2022★ 258 cited

Amplified Emission by Atoms and Lasing in Photonic Time Crystals

Mark Lyubarov, Yaakov Lumer, Alex Dikopoltsev +3

Photonic Time Crystals (PTCs) - dielectric media with their refractive index modulated periodically in time, offer new opportunities in photonics arising from time reflections and…

physics.optics2021★ 130 cited

Light Emission by Free Electrons in Photonic Time-Crystals

Alex Dikopoltsev, Yonatan Sharabi, Mark Lyubarov +5

Photonic time-crystals (PTCs) are spatially-homogeneous media whose electromagnetic (EM) susceptibility varies periodically in time, causing temporal reflections and refractions fo…

physics.optics2018★ 349 cited

Topology of photonic time-crystals

Eran Lustig, Yonatan Sharabi, Mordechai Segev

We introduce topological phases in Photonic Time-Crystals. Photonic Time-Crystals are materials in which the refractive index varies periodically and abruptly in time. When the ref…