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Subdiffraction Limited Photonic Funneling of Light.
- Source :
- Advanced Optical Materials; 12/17/2020, Vol. 8 Issue 24, p1-7, 7p
- Publication Year :
- 2020
-
Abstract
- Efficient optical coupling between nano‐ and macroscale areas is strongly suppressed by the diffraction limit. This work presents a possible solution to this fundamental problem via the experimental fabrication, characterization, and comprehensive theoretical analysis of structures referred to as "photonic funnels." The funnels represent a novel composite material platform that combines hyperbolic dielectric response with geometry‐assisted optical confinement. Experimentally, funneling of mid‐infrared light through openings with diameters as small as 1/25th of the free space wavelength (λ0) is demonstrated. By analyzing the optical response of the funnels, as fabricated, both confinement of mid‐infrared radiation to the λ0/25 areas and efficient outcoupling of light from deep subwavelength areas are confirmed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21951071
- Volume :
- 8
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Advanced Optical Materials
- Publication Type :
- Academic Journal
- Accession number :
- 147674972
- Full Text :
- https://doi.org/10.1002/adom.202001321