Extended Data Fig. 4: Scan image of background emission after bleaching.
From: Imaging individual barium atoms in solid xenon for barium tagging in nEXO
We used a 532-nm laser to bleach the sapphire surface background in a 14 × 14 grid pattern with 8-μm steps. A roughly 30× reduction of the background is observed in the low area where the bleaching laser was scanned.
