Lasing action in single subwavelength particles supporting supercavity modes

Abstract

On-chip light sources are critical for the realization of fully integrated photonic circuitry. So far, semiconductor miniaturized lasers have been mainly limited to sizes on the order of a few microns. Further reduction of sizes is challenging fundamentally due to the associated radiative losses. While using plasmonic metals helps to reduce radiative losses and sizes, they also introduce Ohmic losses hindering real improvements. In this work, we show that, making use of quasi-bound states in the continuum, or supercavity modes, we circumvent these fundamental issues and realize the smallest purely semiconductor nanolaser thus far. Here, the nanolaser structure is based on a single semiconductor nanocylinder that intentionally takes advantage of the destructive interference between two supported optical modes, namely Fabry-Perot and Mie modes, to obtain a significant enhancement in the quality factor of the cavity. We experimentally demonstrate the concept and obtain optically pumped lasing action using GaAs at cryogenic temperatures. The optimal nanocylinder size is as small as 500 nm in diameter and only 330 nm in height with a lasing wavelength around 825 nm, corresponding to a size-to-wavelength ratio around 0.6. The obtained results pave the way for the development of smaller on-chip light sources free of Ohmic losses, which may find applications in the future photonic circuits.

29 pages, 9 figures

References in corpus (12)

• Resonantly Trapped Bound State in the Continuum Laser
• Individual nanoantennas empowered by bound states in the continuum for nonlinear photonics
• High-Q supercavity modes in subwavelength dielectric resonators
• Lasing action in active dielectric nanoantenna arrays
• Nonradiating Photonics with Resonant Dielectric Nanostructures
• Giant nonlinear response at the nanoscale driven by bound states in the continuum
• Bound states in the continuum and Fano resonances in the strong mode coupling regime
• Resonant Raman Scattering from Silicon Nanoparticles Enhanced by Magnetic Response
• Near-IR Subwavelength Microdisk Lasers
• Enhancement and Inhibition of Spontaneous Photon Emission by Resonant Silicon Nanoantennas
• Multipolar second-harmonic generation from high-$Q$ quasi-BIC states in nanoresonators
• Single-particle Mie-resonant all-dielectric nanolasers

Cited by in corpus (19)

• Applications of Bound States in the Continuum in Photonics
• Continuous wave second harmonic generation enabled by quasi-bound-states in the continuum on gallium phosphide metasurfaces
• Pushing the Limit of High-Q Mode of a Single Subwavelength Dielectric Nanocavity
• Minireview on Disordered Optical Metasurfaces
• Bound states in the continuum in photonic structures
• All-dielectric thermonanophotonics
• Observation of supercavity modes in subwavelength dielectric resonators
• Bound state in the continuum in slab waveguide enables low-threshold quantum-dot lasing
• High-Q dielectric Mie-resonant nanostructures (a mini-review)
• Bound States in the Continuum in Multipolar Lattices
• Polariton lasing in Mie-resonant perovskite nanocavity
• Van der Waals Nanoantennas on Gold as Hosts for Hybrid Mie-Plasmonic Resonances
• Enhanced Purcell factor for nanoantennas supporting interfering resonances
• Optical nanoresonators
• Lighting of a monochromatic scatterer with virtual gain
• Photonic Bound-States-in-the-Continuum Observed with an Electron Nanoprobe
• Nonradiant multiphoton states in quantum ring oligomers
• Luminescence Enhancement in One-Dimensional Mie-Resonant Arrays
• Experimental Study of Fabry-Perot BICs in a Microwave Waveguide