Metasurface integrated Vertical Cavity Surface Emitting Lasers for programmable directional lasing emissions

Abstract

Vertical cavity surface emitting lasers (VCSELs) have made indispensable contributions to the development of modern optoelectronic technologies. However, arbitrary beam shaping of VCSELs within a compact system still remains inaccessible till now. The emerging ultra-thin flat optical structures, namely metasurfaces, offer a powerful technique to manipulate electromagnetic fields with subwavelength spatial resolution. Here, we show that the monolithic integration of dielectric metasurfaces with VCSELs enables remarkable arbitrary control of the laser beam profiles, including self-collimation, Bessel and Vortex lasers, with high efficiency. Such wafer-level integration of metasurface through VCSELs-compatible technology simplifies the assembling process and preserves the high performance of the VCSELs. We envision that our approach can be implemented in various wide-field applications, such as optical fibre communications, laser printing, smartphones, optical sensing, face recognition, directional displays and ultra-compact light detection and ranging (LiDAR).

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• Directional Dipole Dice Enabled by Anisotropic Chirality
• Resonators with tailored optical path by cascaded-mode conversions
• Ultrafast one-chip optical receiver with functional metasurface
• Metasurface-controlled holographic microcavities
• Enhanced Polarization Locking in VCSELs
• Diffraction-limited operation of micro-metalenses: fundamental bounds and designed rules for pixel integration
• Perfect anomalous reflectors at optical frequencies
• Roadmap on multimode light shaping
• Topology optimized multi-functional mechanically reconfigurable meta-optics studied at microwave frequencies