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physics.optics2026
All-optical programming of polarization singularities in a photonic-crystal laser
Abhishek Padhy, Zhiyi Yuan, Mohammed Hamdad +11
Singular optics has emerged as an important research area with diverse applications, yet controlling optical singularities in nanophotonic emitters remains largely constrained by t…
physics.optics2026
Multi-wavelength UV Upconversion in Lanthanides assisted by Photonic Crystals
Damien Rinnert, Emmanuel Drouard, Antonio Pereira +6
Upconversion luminescence consists of the absorption of low-energies photons followed by the emission of a higher energy photon. The process has mainly been studied in lanthanides…