research
A Collector Reaches Around the Emitter
Inverse-designed dielectric interfaces gather light from the full solid angle and reshape it into one collimated beam.
Summary
Inverse-designed dielectric interfaces gather light from the full solid angle and reshape it into one collimated beam.
Conventional lenses see an emitter from only one direction. Allight instead surrounds the source with a sequence of refractive interfaces designed to collect emission across the full 4-pi solid angle and adiabatically form a collimated output. The researchers experimentally demonstrate the underlying omnidirectional ray bending in two dimensions. The proposed device is broadband and non-resonant, but the paper's perfect-collector ambition extends beyond the dimensional demonstration reported here.
Why it matters
Inverse-designed dielectric interfaces gather light from the full solid angle and reshape it into one collimated beam.
Limits and context
- Conventional lenses see an emitter from only one direction.
Key claims
Inverse-designed dielectric interfaces gather light from the full solid angle and reshape it into one collimated beam.
Qualification: Conventional lenses see an emitter from only one direction.
Evidence: source-2026-10-21-015
Sources
- arXiv preprint 2610.27161, original v1arXiv · primary research
Corrections
No corrections have been recorded for this story.