Scientists / Open questions

Federico Capasso

Quantum cascade lasers; metasurfaces; flat optics

7 questions

  1. Quantitative theory–experiment comparison for fluid-mediated repulsive Casimir–Lifshitz forces: broadband dielectric data for the intervening fluid and removal of the small-separation and force-sensitivity limits

  2. Hole injection and electroluminescence mechanisms in single ZnO-nanowire light-emitting diodes: open directions from the broadband single-nanowire LED

  3. Metalens-based endoscopic optical coherence tomography: realizing and validating sub-millimetre nano-optic catheters, polarization-sensitive imaging, dispersion-engineered depth of focus, and clinical utility

  4. Experimental realization and generalization of symmetry-breaking Fano interference in self-assembled plasmonic quadrumer clusters

  5. Intracavity dynamics of metasurface orbital-angular-momentum lasers: coherent lasing of spatially non-overlapping modes and vortex splitting inside the gain medium

  6. Sub-percent precision test of the Casimir interaction in MEMS geometries and practical Casimir-based actuation of microdevices

  7. Vectorial, non-paraxial generalization of metasurface optics for on-demand polarization transformations along the optical path

Back to open problems