Enhanced infrared vision by nonlinear up-conversion in nonlocal metasurfaces

Abstract

The ability to detect and image short-wave infrared light has important applications in surveillance, autonomous navigation, and biological imaging. However, the current infrared imaging technologies often pose challenges due to their large footprints, large thermal noise, and the inability to augment infrared and visible imaging. Here, we demonstrate infrared imaging by nonlinear up conversion to the visible on an ultra-compact, high-quality lithium niobate resonant metasurface. Images with high conversion efficiency and resolution quality are obtained despite the strong nonlocality of the metasurface. We further show the possibility of edge-detection image processing augmented with direct-up conversion imaging for advanced night vision applications.

arXiv comment16 pages, 7 figures

References in corpus (14)

• Asymmetric metasurfaces with high-$Q$ resonances governed by bound states in the continuum
• Integrated photonics on thin-film lithium niobate
• Ultra-high-Q resonances in plasmonic metasurfaces
• An optical metamixer
• Continuous wave second harmonic generation enabled by quasi-bound-states in the continuum on gallium phosphide metasurfaces
• Nonlocal Flat Optics
• Spatially entangled photon-pairs from lithium niobate nonlocal metasurfaces
• Nonlinear imaging with all-dielectric metasurfaces
• Asymmetric parametric generation of images with nonlinear dielectric metasurfaces
• Infrared up-conversion imaging in nonlinear metasurfaces
• Enhanced sum-frequency generation from etchless lithium niobate empowered by dual quasi-bound states in the continuum
• InGaP quantum nanophotonic integrated circuits with 1.5% nonlinearity-to-loss ratio
• All-optical free-space routing of upconverted light by metasurfaces via nonlinear interferometry
• Up-conversion imaging processing with field-of-view and edge enhancement

Cited by in corpus (6)

• Enhanced third-harmonic generation empowered by doubly degenerate quasi-bound states in the continuum
• Mid-infrared Fourier ptychographic upconversion imaging
• High-speed mid-infrared imaging via nonlinear multiplexed detection
• High-efficiency infrared upconversion imaging with nonlinear silicon metasurfaces empowered by quasi-bound states in the continuum
• Wide-field mid-infrared edge-enhanced upconversion imaging
• Ultrafast Coherent Bandgap Modulation Probed by Parametric Nonlinear Optics