Tag

Frequency Conversion

All articles tagged with #frequency conversion

innovation1 month ago•7 min saved

Nano metasurface boosts light frequency conversion by 1,000x

Researchers combined gallium arsenide/aluminum gallium arsenide multi-quantum-well layers with a nanoscale metasurface to amplify light’s nonlinear frequency conversion by up to 1,000 times, enabling smaller, scalable photonic devices for telecom and quantum technologies. The approach engineers both the material and the optical structure, yielding strong light–matter interactions at near-infrared wavelengths and compatibility with existing semiconductor manufacturing, with potential applications including quantum communication and entangled-photon sources.

via Interesting Engineering|

#frequency-conversion #innovation #metasurface

technology7 months ago•13 min saved

Two-Timescale Photonic Chips Forge New Colors On Demand

Researchers at JQI designed a chip consisting of an array of resonators that exploit two distinct light-circulation timescales to passively satisfy frequency-phase matching, enabling second-, third-, and fourth-harmonic generation from a 190 THz input without active tuning. The on-chip generation of new colors (red, green, blue) eliminates the need for additional lasers or heaters and could impact metrology and nonlinear optical computing by providing compact, scalable light sources.

via SciTechDaily|

#frequency-conversion #integrated-photonics #nonlinear-optics