Spot-patterned alkali metal azide on a flat substrate enables uniform miniature gas cells with flexible shape control and safer mass production.
EM reflective coatings, trenches, and a sealed waveguide interface cut leakage and interference in gas-cell quantum frequency detection.
External metallization and doped silicon keep SNR high in a hollow quantum waveguide while non-metallic inner walls cut cost and reactions.
Compressed source material on a substrate cuts contamination and enables external heating for smaller, longer-life atomic vapor sources.