{"id":69454,"date":"2024-07-24T09:52:00","date_gmt":"2024-07-24T07:52:00","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=69454"},"modified":"2024-09-18T09:06:57","modified_gmt":"2024-09-18T07:06:57","slug":"un-dispositif-experimental-pour-briser-la-reciprocite-de-la-propagation-des-ondes-acoustiques-2","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/newsletter\/un-dispositif-experimental-pour-briser-la-reciprocite-de-la-propagation-des-ondes-acoustiques-2.html","title":{"rendered":"Un dispositif exp\u00e9rimental pour briser la r\u00e9ciprocit\u00e9 de la propagation des ondes acoustiques"},"content":{"rendered":"<div  class='flex_column av-1jvmr33-1fb0113428302a1a7987f98770c97c20 av_one_full  avia-builder-el-0  el_before_av_hr  avia-builder-el-first  first flex_column_div'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lyyddb6h-69188d4917e12cfb0dbd5d2fdc29d40c\">\n#top .av-special-heading.av-lyyddb6h-69188d4917e12cfb0dbd5d2fdc29d40c{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lyyddb6h-69188d4917e12cfb0dbd5d2fdc29d40c .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lyyddb6h-69188d4917e12cfb0dbd5d2fdc29d40c .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lyyddb6h-69188d4917e12cfb0dbd5d2fdc29d40c av-special-heading-h3  avia-builder-el-1  avia-builder-el-no-sibling'><h3 class='av-special-heading-tag'  itemprop=\"headline\"  >Un dispositif exp\u00e9rimental pour briser la r\u00e9ciprocit\u00e9 de la propagation des ondes acoustiques<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lyydekit-0abbee231ff3a63bb08d21586e81d83b\">\n#top .hr.av-lyydekit-0abbee231ff3a63bb08d21586e81d83b{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-lyydekit-0abbee231ff3a63bb08d21586e81d83b .hr-inner{\nwidth:200;\nmax-width:45%;\n}\n<\/style>\n<div  class='hr av-lyydekit-0abbee231ff3a63bb08d21586e81d83b hr-custom  avia-builder-el-2  el_after_av_one_full  el_before_av_three_fourth  hr-center hr-icon-yes'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><span class='av-seperator-icon' aria-hidden='true' data-av_icon='\ue808' data-av_iconfont='entypo-fontello'><\/span><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-j8rbxq-f1fb364bb19d6f6668c141a1301aca80 av_three_fourth  avia-builder-el-3  el_after_av_hr  el_before_av_one_fourth  first flex_column_div'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m0zcxejf-fabdac0cf72d5f9e2b149bcaaf462f84\">\n#top .av_textblock_section.av-m0zcxejf-fabdac0cf72d5f9e2b149bcaaf462f84 .avia_textblock{\nfont-size:16px;\n}\n<\/style>\n<section  class='av_textblock_section av-m0zcxejf-fabdac0cf72d5f9e2b149bcaaf462f84'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"introduction\">\n<div class=\"clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item\">\n<div class=\"tex2jax_process\">\n<div class=\"introduction\">\n<div class=\"clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item\">\n<div class=\"tex2jax_process\">\n<p><strong>Thanks to an innovative acoustic transmission line, a team from the Institut d'\u00e9lectronique, de micro\u00e9lectronique et de<\/strong> <strong>nanotechnology has experimentally demonstrated the non-reciprocity of wave propagation in a medium whose properties are modulated in time and space. The results are published in the journal<em> Applied Physics Letters.<\/em><\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"field field--name-field-entity-block field--type-entity-reference field--label-hidden field__items\">\n<div class=\"field__item\">\n<div class=\"block-description\">\n<div class=\"clearfix text-formatted field field--name-field-descriptive field--type-text-long field--label-hidden field__item\">\n<div class=\"tex2jax_process\">\n<p>Wave reciprocity can be defined as the invariance of measured signals when the source and receiver are swapped. However, this invariance can be broken in a transmission line whose properties are modulated in space and time. Until now, the difficulty of creating a sufficiently long transmission line and a sufficiently efficient and fast modulation had not allowed this phenomenon to be observed experimentally.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><a href=\"https:\/\/doi.org\/10.1051\/aacus\/2022037\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-wzsvks-46d6d7ea08225296d35c9091d7f3f671\">\n.av_font_icon.av-wzsvks-46d6d7ea08225296d35c9091d7f3f671{\ncolor:#ed9e17;\nborder-color:#ed9e17;\n}\n.av_font_icon.av-wzsvks-46d6d7ea08225296d35c9091d7f3f671 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-wzsvks-46d6d7ea08225296d35c9091d7f3f671 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue826' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/a> More information and full article:<span style=\"text-decoration: underline;\"> <a href=\"https:\/\/www.insis.cnrs.fr\/fr\/cnrsinfo\/un-dispositif-experimental-pour-briser-la-reciprocite-de-la-propagation-des-ondes\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #f2ac0a; text-decoration: underline;\"><span style=\"color: #ed9e17; text-decoration: underline;\">CNRS Ingenierie<\/span> <\/span><\/strong><\/a><\/span><\/p>\n<div class=\"section-elements\">\n<div id=\"person-1008\" class=\"field__item vcard node node--type-personne node--view-mode-block\">\n<div class=\"email\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-69442\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2.jpg\" alt=\"\" width=\"870\" height=\"492\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2.jpg 880w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2-300x170.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2-768x435.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2-18x10.jpg 18w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2-705x399.jpg 705w\" sizes=\"auto, (max-width: 870px) 100vw, 870px\" \/><\/a><\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div class=\"email\" style=\"text-align: left;\"><em>(c) Diagram of the stack of piezoelectric elements separated by electrodes.<\/em><br \/>\n<em> (d) Photo of the experimental device for spatial and temporal modulation of the electrical conditions imposed on the electrodes, using a DSP electronic circuit combined with DRAM memories.<\/em><br \/>\n<em> Sarah Tessier\/IEMN\/CNRS<\/em><\/div>\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-w9obvj-c7ec1eb690b6e2756ce685d0e1359e27\">\n@keyframes av_boxShadowEffect_av-w9obvj-c7ec1eb690b6e2756ce685d0e1359e27-column {\n0%   { box-shadow:  0 0 0 0 #cecece; opacity: 1; }\n100% { box-shadow:  0 0 15px 0 #cecece; opacity: 1; }\n}\n.flex_column.av-w9obvj-c7ec1eb690b6e2756ce685d0e1359e27{\nbox-shadow: 0 0 15px 0 #cecece;\nborder-radius:20px 20px 20px 20px;\npadding:15px 15px 15px 15px;\n}\n<\/style>\n<div  class='flex_column av-w9obvj-c7ec1eb690b6e2756ce685d0e1359e27 av_one_fourth  avia-builder-el-6  el_after_av_three_fourth  avia-builder-el-last  flex_column_div shadow-not-animated'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lyyeibol-1b2647d4ef7512ff70d71df1f1c69897\">\n#top .av_textblock_section.av-lyyeibol-1b2647d4ef7512ff70d71df1f1c69897 .avia_textblock{\nfont-size:13px;\ntext-align:left;\n}\n<\/style>\n<section  class='av_textblock_section av-lyyeibol-1b2647d4ef7512ff70d71df1f1c69897'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mqde7m-2-a0a7d7e02fb88b24e7a6fd6f0fbda9ac\">\n.av_font_icon.av-mqde7m-2-a0a7d7e02fb88b24e7a6fd6f0fbda9ac{\ncolor:#ed9e17;\nborder-color:#ed9e17;\n}\n.av_font_icon.av-mqde7m-2-a0a7d7e02fb88b24e7a6fd6f0fbda9ac .av-icon-char{\nfont-size:24px;\nline-height:24px;\n}\n<\/style>\n<span  class='av_font_icon av-mqde7m-2-a0a7d7e02fb88b24e7a6fd6f0fbda9ac avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue889' data-av_iconfont='entypo-fontello' ><\/span><\/span> Contacts<\/p>\n<div class=\"section-elements\">\n<div id=\"person-1823\" class=\"field__item vcard node node--type-personne node--view-mode-block\">\n<div class=\"section-elements\">\n<div id=\"person-3312\" class=\"field__item vcard node node--type-personne node--view-mode-block\">\n<ul>\n<li class=\"name\"><span class=\"field field--name-title field--type-string field--label-hidden\">Bertrand Dubus<br \/>\n<\/span><a class=\"decode\" href=\"mailto:bertrand.dubus@isen.fr\" rel=\"noreferrer\">bertrand.dubus@isen.fr<\/a><\/li>\n<\/ul>\n<div class=\"email\">\n<p><em>CNRS Research Director at the Institute of Electronics, Microelectronics and Nanotechnology (IEMN, CNRS\/Universit\u00e9 de Lille\/Universit\u00e9 Polytechnique Hauts-de-France)<\/em><\/p>\n<\/div>\n<\/div>\n<div id=\"person-1008\" class=\"field__item vcard node node--type-personne node--view-mode-block\">\n<ul>\n<li class=\"name\"><span class=\"field field--name-title field--type-string field--label-hidden\">Communication CNRS Ing\u00e9nierie<br \/>\n<\/span><a class=\"decode\" href=\"mailto:insis.communication@cnrs.fr\" rel=\"noreferrer\">insis.communication@cnrs.fr<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"person-1008\" class=\"field__item vcard node node--type-personne node--view-mode-block\"><\/div>\n<\/div>\n<\/div><\/section><\/div><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[297],"tags":[],"class_list":["post-69454","post","type-post","status-publish","format-standard","hentry","category-newsletter"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/69454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=69454"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/69454\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=69454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=69454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=69454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}