{"id":"S2022007177","label":"Optical vortices","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2022007177","normalized_label":"optical vortices","broader":["http://id.loc.gov/authorities/subjects/sh85012637","http://id.loc.gov/authorities/subjects/sh85092328","http://id.loc.gov/authorities/subjects/sh85144404"],"aliases":["Beams, Singular","Singular beams","Vortices, Optical"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2022007177","provider":"lcsh","revision":"35d4e09dabe728a6","taxonomy_revision":"f050b5d4780b1289","title":"Optical vortices","url":"/topics/S2022007177","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"37167918481409120","address_version":"morton4x16-v1","coordinates":[0,482,5510,9216],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}