3 papers
physics.optics2025
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…
physics.app-ph2024
Detecting and Focusing on a Nonlinear Target in a Complex Medium
Antton Goïcoechea, Jakob Hüpfl, Stefan Rotter +2
Wavefront shaping techniques allow waves to be focused on a diffraction-limited target deep inside disordered media. To identify the target position, a guidestar is required that t…
physics.optics2024
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…