{"id":3712,"date":"2025-11-27T10:30:26","date_gmt":"2025-11-27T09:30:26","guid":{"rendered":"http:\/\/polysense.poliba.it\/?p=3712"},"modified":"2025-11-27T10:32:23","modified_gmt":"2025-11-27T09:32:23","slug":"new-publication-on-sensors-and-actuators-b-chemical-journal-5","status":"publish","type":"post","link":"https:\/\/polysense.poliba.it\/index.php\/2025\/11\/27\/new-publication-on-sensors-and-actuators-b-chemical-journal-5\/","title":{"rendered":"New Publication on Sensors and Actuators B Chemical Journal"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The PolySense and Polysense Innovations teams have just published\u00a0 a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 7.7)\u00a0 reporting on an investigation of the relaxation dynamics of the \u03bd3 energy level of nitrous oxide (N2O) molecules in synthetic air using a 4.5 \u03bcm distributed feedback quantum cascade laser (DFB-QCL) combined with photoacoustic  spectroscopy (PAS) technique. A comprehensive theoretical model coupling vibration-translation (V-T) relaxation processes and vibration-vibration (V-V) energy transfer was developed, enabling a rigorous theoretical derivation of the system-wide vibrational relaxation time. Through in-depth analysis of photoacoustic signal phase characteristics, the molecular relaxation times of both N2O (\u03bd3) (1.6 \u03bcs atm) and H2O (0.33 \u03bcs atm) were simultaneously extracted. This  research not only validates the technical feasibility and analytical superiority of PAS phase technology in measuring gas relaxation times but also introduces a novel high-precision spectroscopic analysis method for studying vibrational dynamics in complex molecular systems, showcasing its potential applications in environmental monitoring and molecular dynamics research.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following link provides access to the article:    <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/Investigation-of-the-role-of-photoacoustic-phase-in-N2Ov3-vibrational-relaxation-rate-determination_sens-act_B_2025.pdf\">http:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/Investigation-of-the-role-of-photoacoustic-phase-in-N2Ov3-vibrational-relaxation-rate-determination_sens-act_B_2025.pdf<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"832\" src=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/investigation-of-role-1024x832.jpg\" alt=\"\" class=\"wp-image-3708\" srcset=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/investigation-of-role-1024x832.jpg 1024w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/investigation-of-role-300x244.jpg 300w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/investigation-of-role-768x624.jpg 768w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/11\/investigation-of-role.jpg 1091w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The PolySense and Polysense Innovations teams have just published\u00a0 a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 7.7)\u00a0 reporting on an investigation of the relaxation dynamics of the \u03bd3 energy level of nitrous oxide (N2O) molecules in synthetic air using a 4.5 \u03bcm distributed feedback quantum cascade laser (DFB-QCL) combined with <a href=\"https:\/\/polysense.poliba.it\/index.php\/2025\/11\/27\/new-publication-on-sensors-and-actuators-b-chemical-journal-5\/\" rel=\"nofollow\"><span class=\"sr-only\">Leggi di pi\u00f9New Publication on Sensors and Actuators B Chemical Journal<\/span>[&hellip;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":425,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-senza-categoria"],"_links":{"self":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3712","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/comments?post=3712"}],"version-history":[{"count":2,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3712\/revisions"}],"predecessor-version":[{"id":3715,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3712\/revisions\/3715"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media\/425"}],"wp:attachment":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media?parent=3712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/categories?post=3712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/tags?post=3712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}