Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Dec. 4, 2024
Language: Английский
Photonics and Nanostructures - Fundamentals and Applications, Journal Year: 2025, Volume and Issue: unknown, P. 101379 - 101379
Published: March 1, 2025
Language: Английский
Citations
1
Newton, Journal Year: 2025, Volume and Issue: unknown, P. 100057 - 100057
Published: March 1, 2025
Language: Английский
Citations
1
Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 8, 2024
Nonlinear nanophotonic devices have shown great potential for on-chip information processing, quantum source, 3D microfabrication, greatly promoting the developments of integrated optics, science, nanoscience and technologies, etc. To promote applications nonlinear nanodevices, improving efficiency, expanding spectra region response reducing device thickness are three key issues. Herein, this study focuses on effect third-harmonic generation (THG), present a thin Si meta-sructure to improve THG efficiency in ultraviolet (UV) region. The measured is up 10
Language: Английский
Citations
5
Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(8)
Published: Aug. 19, 2024
Resonant nanostructures have emerged as versatile photonic platforms for boosting optical nonlinear responses on a subwavelength scale their ability to confine intense electromagnetic fields while relaxing the phase-matching requirements. Recent significant advances in this field are associated with utilization of non-radiative eigenmodes above light cone, termed bound states continuum (BICs), which provide unique mechanism trapping realize excitation ultrahigh quality (Q) factor resonances. Nevertheless, current studies BICs predominantly focus symmetry-protected (SP-BICs), whose requires symmetry breaking, and Q factors limited by fabrication imperfections. Here, we demonstrate simple feasible scheme creating degenerate pairs mirror-coupled super-BICs harnessing magnetic dipole resonances coupled mirror images adjacent metal films. Unlike trivial SP-BICs, showcases huge enhancement resilient against By combining resonance engineered radiative loss, obtain perfect absorber near-unity absorption ultra-narrow bandwidth at critical coupling condition. Finally, numerically terahertz (THz) regime, polarization-insensitive highly efficient third-harmonic generation benefiting from maximum localized within absorber. Our work not only paves way toward unlocking full potential BIC but also promise valuable insights developing THz optoelectronic devices metadevices across wide range fields.
Language: Английский
Citations
5
Deleted Journal, Journal Year: 2025, Volume and Issue: 2(1)
Published: Jan. 24, 2025
Citations
0
The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown
Published: March 28, 2025
Language: Английский
Citations
0
ACS Photonics, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 8, 2025
Abstract A σ h symmetry‐breaking plasmonic honeycomb nanocavities (PHC) is proposed and realized that support quasi‐BIC resonance modes with high‐Q factors. The anodic oxidation‐engineered strategy breaks out‐of‐plane symmetry while preserving in‐plane symmetry, enabling the PHC to exhibit collective lattice resonances (PLR) couplings achieve Q‐factors exceeding 10 6 . Experimentally, perovskite quantum dots (PQDs) are coupled PHC, demonstrating effective tuning of their emission properties beam quality in blue spectral region, achieving a 32‐fold enhancement by suppress Ohmic loss life time emitters, simultaneously realize vertical 2.556 – 2.638 eV far‐field hexagonal shape full width at half maximum 12.6 degree under optimal coupling conditions. Furthermore, topological band inversion demonstrated characterized Zak phase transitions continuously system parameters, confirming supports topologically non‐trivial q‐BIC due PLR coupling. presents itself as promising next‐generation, high‐brightness nanoscale light source matrix, which can be directly scaled up cover wide wavelength range from UV IR.
Language: Английский
Citations
0
Reviews in Physics, Journal Year: 2025, Volume and Issue: unknown, P. 100117 - 100117
Published: April 1, 2025
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 24, 2025
Abstract Miniaturized, tunable light sources are essential for integrated photonic devices in quantum computing, communications, and sensing. However, achieving emission post‐fabrication remains challenging, especially efficient amplification. Hybrid metasurfaces that combine multiple nanostructured materials offer a promising solution, enabling enhanced control amplification of emission. Here, amplified photoluminescence (PL) is demonstrated nanocrystalline silicon (nc‐Si) dots (QDs) embedded hybrid metasurface amorphous (a‐Si) antimony trisulfide (Sb2S3), low‐loss phase change material (PCM). The nc‐Si QDs exhibit stable, PL at high temperatures, while the PCM enables transitions. supports dual quasi‐bound states continuum (BICs), Q‐factors up to 225 amplifying by factor 15 with wavelength shift 105 nm via dimensional modulation. Additionally, all‐optical tunability across 24 range attained through Furthermore, Q‐factor metalens proposed focus PL, extending focused into near‐infrared (NIR). This work advances reconfigurable nanophotonic systems.
Language: Английский
Citations
0