Low-loss Zero-Index Materials
arXiv:2004.01818 · doi:10.1021/acs.nanolett.0c03575
Abstract
Materials with a zero refractive index support electromagnetic modes that exhibit stationary phase profiles. While such materials have been realized across the visible and near-infrared spectral range, radiative and dissipative optical losses have hindered their development. We reduce losses in zero-index, on-chip photonic crystals by introducing high-Q resonances via resonance-trapped and symmetry-protected states. Using these approaches, we experimentally obtain quality factors of 2.6*10^3 and 7.8*10^3 at near-infrared wavelengths, corresponding to an order-of-magnitude reduction in propagation loss over previous designs. Our work presents a viable approach to fabricate zero-index on-chip nanophotonic devices with low-loss.
arXiv comment35 pages, 16 figures
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Cited by in corpus (9)
- Applications of Bound States in the Continuum in Photonics
- Topological metasurface: From passive toward active and beyond
- On-chip Light Trapping in Bilayer Moiré Photonic Crystal Slabs
- Experimental observation of non-Abelian earring nodal links in phononic crystals
- Relaxed phase-matching constraints in zero-index waveguides
- Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency
- Dirac Points Embedded in the Continuum
- Deterministic steady-state subradiance within a single-excitation basis
- Leveraging Epsilon Near Zero phenomena for on-chip photonic modulation