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physics.optics2025
Tunable polarization-entangled near-infrared photons from orthogonal GaAs nanowires
Elise Bailly-Rioufreyt, Zoya Polshchykova, Grégoire Saerens +10
Quantum entanglement is a fundamental resource for emerging quantum technologies, enabling secure communication and enhanced sensing. For decades, generating polarization entangled…
physics.optics2024
Polarization-entangled photon pair generation from an epsilon-near-zero metasurface
Wenhe Jia, Grégoire Saerens, Ãlle-Linda Talts +5
Polarization-entangled photon pair sources are essential for diverse quantum technologies, such as quantum communication, computation, and imaging. However, the generation of compl…
physics.optics2024
Second-Order Nonlinear Circular Dichroism in Square Lattice Array of Germanium Nanohelices
Grégoire Saerens, Günter Ellrott, Olesia Pashina +5
Second harmonic generation (SHG) is prohibited in centrosymmetric crystals such as silicon or germanium due to the presence of inversion symmetry. However, the structuring of such…