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Ultrafast tuning of the focusing efficiency of a nonlinear atomically thin lens
Rahil Rezwan, Bernardo Dias, Tom Hoekstra +10
Control over light focusing is paramount for optical and imaging systems. However, its implementation in active and integrated nanophotonic devices is hindered by the bulky and sta…
Hybrid-2D Excitonic Metasurfaces for Complex Amplitude Modulation
Tom Hoekstra, Mark L. Brongersma, Jorik van de Groep
Dynamic control of visible light is crucial for technologies such as holographic displays and adaptive optics. Passive metasurfaces can shape wavefronts at the subwavelength scale…
Finite-Size Effects in Nonlocal Metasurfaces
Tom Hoekstra, Sander A. Mann, Jorik van de Groep
Metasurfaces leveraging nonlocal resonances enable narrowband spectral control and strong near-fields, with applications spanning augmented reality, biosensing, and nonlinear optic…
Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
Ali Azimi, Julien Barrier, Angela Barreda +45
Two-dimensional (2D) semiconductors are emerging as a versatile platform for nanophotonics, offering unprecedented tunability in optical properties through exciton resonance engine…
Electrically tunable strong coupling in a hybrid-2D excitonic metasurface for optical modulation
Tom Hoekstra, Jorik van de Groep
Atomically thin semiconductors exhibit tunable exciton resonances that can be harnessed for dynamic manipulation of visible light in ultra-compact metadevices. However, the rapid n…