Directional lasing in resonant semiconductor nanoantenna arrays
Son Tung Ha,Yuan Hsing Fu,Naresh Kumar Emani,Naresh Kumar Emani,Zhenying Pan,Reuben M. Bakker,Ramón Paniagua-Domínguez,Arseniy I. Kuznetsov +7 more
490
TL;DR: In this paper, the authors demonstrate directional lasing, with a low threshold and high quality factor, in active dielectric nanoantenna arrays achieved through a leaky resonance excited in coupled gallium arsenide (GaAs) nanopillars.
read more
Abstract: High-index dielectric and semiconductor nanoparticles supporting strong electric and magnetic resonances have drawn significant attention in recent years. However, until now, there have been no experimental reports of lasing action from such nanostructures. Here, we demonstrate directional lasing, with a low threshold and high quality factor, in active dielectric nanoantenna arrays achieved through a leaky resonance excited in coupled gallium arsenide (GaAs) nanopillars. The leaky resonance is formed by partially breaking a bound state in the continuum generated by the collective, vertical electric dipole resonances excited in the nanopillars for subdiffractive arrays. We control the directionality of the emitted light while maintaining a high quality factor (Q = 2,750). The lasing directivity and wavelength can be tuned via the nanoantenna array geometry and by modifying the gain spectrum of GaAs with temperature. The obtained results provide guidelines for achieving surface-emitting laser devices based on active dielectric nanoantennas that are compact and highly transparent.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Unidirectional Lasing from Mirror-Coupled Dielectric Lattices.
Guanyue Zhao,Xinyu Gao,Yufeng Zhou,Mengyuan Song,Yixuan Du,Zhuang Li,Jun Guan,Yangjian Cai,Xianyu Ao +8 more
- 08 Mar 2024
TL;DR: High-quality lattice resonances and unidirectional lasing from mirror-coupled dielectric lattices. The enhanced electromagnetic fields are concentrated in the cladding of the periodic dielectric structures and away from the metal.
2
Momentum-space polarization fields in two-dimensional photonic-crystal slabs: Physics and applications
TL;DR: In this article , the authors summarize the recent progress on momentum-space polarization fields and singularities in two-dimensional photonic-crystal slabs, focusing on their unique optical properties and potential applications.
2
•Posted Content
Low-Symmetry Nanophotonics
Alex Krasnok,Andrea Alù +1 more
TL;DR: In this paper, the role of symmetry violation in controlling nanoscale light is discussed, and a unified perspective on symmetry violation and its applications for optical technology is presented under a unified umbrella, including geometrical broken symmetries for localized surface polaritons, the physics of moire photonics, in-plane inversion symmetry breaking for valleytronics and nonradiative state control, and parity-time symmetry breaking.
2
InP Based Hybrid Plasmonic Inset Fed Rectangular Patch Nanoantenna
12 Dec 2022
TL;DR: In this paper , the InP-based hybrid plasmonic patch nano-antenna at the optical wavelength of 1550nm was designed and achieved a gain of 6.78dB at a frequency of 193.4THz.
2
•Posted Content
Topological charge engineering in lasing bound states in continuum
Sughra Mohamed,Jie Wang,Heikki Rekola,Janne Heikkinen,Benjamin O. Asamoah,Lei Shi,Tommi K. Hakala +6 more
TL;DR: In this article, the authors utilize all four fundamental BICs related to the lowest energy Gamma-point of a square photonic crystal lattice and identify the associated topological charges from experimentally obtained dispersions, finite element method simulations, as well as from spherical decomposition method based on the microscopic polarization currents in the photonic surface plane.
2
References
Metalenses at visible wavelengths: Diffraction-limited focusing and subwavelength resolution imaging.
Mohammadreza Khorasaninejad,Wei Ting Chen,Robert C. Devlin,Jaewon Oh,Alexander Y. Zhu,Federico Capasso +5 more
TL;DR: The results firmly establish that metalenses can have widespread applications in laser-based microscopy, imaging, and spectroscopy, with image qualities comparable to a state-of-the-art commercial objective.
3.1K
Optically resonant dielectric nanostructures
Arseniy I. Kuznetsov,Andrey E. Miroshnichenko,Mark L. Brongersma,Yuri S. Kivshar,Boris Luk'yanchuk,Boris Luk'yanchuk +5 more
TL;DR: How high-index dielectric nanoparticles can offer a substitute for plasmonic nanoparticle structures, providing a highly flexible and low-loss route to the manipulation of light at the nanoscale is reviewed.
2.7K
Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission
TL;DR: A metasurface platform based on high-contrast dielectric elliptical nanoposts that provides complete control of polarization and phase with subwavelength spatial resolution and an experimentally measured efficiency ranging from 72% to 97%, depending on the exact design.
Bound states in the continuum
TL;DR: Bound states in the continuum (BICs) are waves that remain localized even though they coexist with a continuous spectrum of radiating waves that can carry energy away.