5 papers · 1 filter
Exceptional Points, Lasing, and Coherent Perfect Absorption in Floquet Scattering Systems
David Globosits, Puneet Garg, Jakob Hüpfl +4
Periodically time-varying media, known as photonic time crystals (PTCs), provide a promising platform for observing unconventional wave phenomena. We analyze the scattering of elec…
Resonant states of structured photonic time crystals
Adrià Canós Valero, Sergei Gladyshev, David Globosits +3
Photonic time crystals (PTCs) are spatially uniform media with periodic modulation in time, enabling momentum bandgaps and the parametric amplification of light. While their potent…
Inverse design of mirror-symmetric disordered systems for broadband perfect transmission
Zhazira Zhumabay, Clément Ferise, Vincent Pagneux +2
We present a framework for achieving broadband perfect wave transmission in complex systems by optimizing symmetric disordered media via inverse design. We show that leveraging sym…
T-matrix representation of optical scattering response: Suggestion for a data format
Nigar Asadova, Karim Achouri, Kristian Arjas +43
The transition matrix, frequently abbreviated as T-matrix, contains the complete information in a linear approximation of how a spatially localized object scatters an incident fiel…
Pseudounitary Floquet scattering matrix for wave-front shaping in time-periodic photonic media
David Globosits, Jakob Hüpfl, Stefan Rotter
The physics of waves in time-varying media provides numerous opportunities for wave control that are unattainable with static media. In particular, Floquet systems with a periodic…