{"paper":{"title":"Nanoparticle detection in an open-access silicon microcavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"quant-ph","authors_text":"Franz-Ferdinand Wieser, Georg Wachter, James Millen, Johannes Schalko, Markus Arndt, Michael Schneider, Michael Trupke, Stefan Kuhn, Ulrich Schmid","submitted_at":"2017-12-05T09:05:40Z","abstract_excerpt":"We report on the detection of free nanoparticles in a micromachined, open-access Fabry-P\\'erot microcavity. With a mirror separation of $130\\,\\mu$m, a radius of curvature of $1.3\\,$mm, and a beam waist of $12\\,\\mu$m, the mode volume of our symmetric infrared cavity is smaller than $15\\,$pL. The small beam waist, together with a finesse exceeding 34,000, enables the detection of nano-scale dielectric particles in high vacuum. This device allows monitoring of the motion of individual $150\\,$nm radius silica nanospheres in real time. We observe strong coupling between the particles and the cavity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01533","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}