{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T15:03:24Z","timestamp":1787238204870,"version":"build-2736575974"},"reference-count":27,"publisher":"Optica Publishing Group","issue":"5","license":[{"start":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T00:00:00Z","timestamp":1740009600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T00:00:00Z","timestamp":1740009600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"Fuyang High-level Talent Group Project"},{"DOI":"10.13039\/501100008841","name":"Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008841","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National High-level Talent Youth Project Strategic Priority Research Program of the Chinese Academy of Science","award":["XDB0650000"],"award-info":[{"award-number":["XDB0650000"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2025,3,1]]},"abstract":"<jats:p>Stimulated Brillouin scattering (SBS) in gas-filled hollow-core fibers (HCFs) provides high gain and narrow linewidth, making it a promising platform for advanced photonic applications. While Brillouin gain is known to depend quadratically on pressure and linewidth inversely on pressure, the combined effect of pressure and temperature \u2013 through their influence on gas density\u2014has not been fully explored. In this study, we demonstrate that lowering the gas temperature from 373.15\u2005K to 233.15\u2005K at a pressure of 100\u2005bars (using nitrogen) leads to a six-fold increase in Brillouin gain and a twofold reduction in linewidth. We systematically investigate the temperature dependence of key Brillouin parameters, including gain, frequency shift, linewidth, acoustic velocity, and temperature sensitivity, in nitrogen and carbon dioxide gases. The results reveal distinct temperature-dependent behaviors, aligning well with theoretical predictions, and provide new insights, to the best of our knowledge, into optimizing SBS performance in gas-filled hollow-core fibers.<\/jats:p>","DOI":"10.1364\/ol.549654","type":"journal-article","created":{"date-parts":[[2025,1,23]],"date-time":"2025-01-23T09:00:53Z","timestamp":1737622853000},"page":"1536","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Effect of temperature on Brillouin scattering in gas-filled hollow-core fibers"],"prefix":"10.1364","volume":"50","author":[{"given":"Xiaohui","family":"Huang","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04c4dkn09","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics"},{"name":"Chinese Academy of Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yun","family":"Qi","sequence":"additional","affiliation":[{"name":"Chinese Academy of Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meng","family":"Pang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04c4dkn09","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Shanghai Institute of Optics and Fine Mechanics and Hangzhou Institute of Optics and Fine Mechanics"},{"name":"Chinese Academy of Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7200-6493","authenticated-orcid":true,"given":"Fan","family":"Yang","sequence":"additional","affiliation":[{"name":"Chinese Academy of Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2025,2,20]]},"reference":[{"key":"ol-50-5-1536-R1","doi-asserted-by":"publisher","first-page":"5514","DOI":"10.1103\/PhysRevA.42.5514","volume":"42","author":"Boyd","year":"1990","journal-title":"Phys. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}