{"id":70419,"date":"2024-09-11T09:28:46","date_gmt":"2024-09-11T07:28:46","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=70419"},"modified":"2024-09-12T16:01:49","modified_gmt":"2024-09-12T14:01:49","slug":"an-experimental-device-to-break-the-reciprocity-of-acoustic-wave-propagation","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/newsletter\/an-experimental-device-to-break-the-reciprocity-of-acoustic-wave-propagation.html","title":{"rendered":"An experimental device to break the reciprocity of acoustic wave propagation"},"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-0a367227c995aa0b9b1b31e0997f15fb\">\n#top .av-special-heading.av-lyyddb6h-0a367227c995aa0b9b1b31e0997f15fb{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lyyddb6h-0a367227c995aa0b9b1b31e0997f15fb .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lyyddb6h-0a367227c995aa0b9b1b31e0997f15fb .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lyyddb6h-0a367227c995aa0b9b1b31e0997f15fb av-special-heading-h3  avia-builder-el-1  avia-builder-el-no-sibling'><h3 class='av-special-heading-tag'  itemprop=\"headline\"  >An experimental device to break the reciprocity of acoustic wave propagation <\/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-rbnqur-1229b954717cf328e48e02c4a23ecb59 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-m0zat1a8-5bb928bf5d1286f50453a29d26c90c4f\">\n#top .av_textblock_section.av-m0zat1a8-5bb928bf5d1286f50453a29d26c90c4f .avia_textblock{\nfont-size:16px;\ncolor:#c9c9c9;\n}\n<\/style>\n<section  class='av_textblock_section av-m0zat1a8-5bb928bf5d1286f50453a29d26c90c4f'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock av_inherit_color'  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<p><strong>Using an innovative acoustic transmission line, a team from the Institute of Electronics, Microelectronics and<\/strong> <strong>Nanotechnology has experimentally demonstrated the non-reciprocity of wave propagation in a medium whose properties are modulated in time and space.<\/strong> <strong>The results are published in the journal<\/strong><em><strong> Applied Physics Letters.<\/strong><\/em><\/p>\n<p><span style=\"color: #737373;\">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.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><span style=\"color: #737373;\"><a style=\"color: #737373;\" href=\"https:\/\/doi.org\/10.1051\/aacus\/2022037\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-wzsvks-2-d896540a6e4e103b1cf6df73d49945e3\">\n.av_font_icon.av-wzsvks-2-d896540a6e4e103b1cf6df73d49945e3{\ncolor:#ed9e17;\nborder-color:#ed9e17;\n}\n.av_font_icon.av-wzsvks-2-d896540a6e4e103b1cf6df73d49945e3 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-wzsvks-2-d896540a6e4e103b1cf6df73d49945e3 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 informations and full article :<\/span><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><\/section><br \/>\n<section  class='av_textblock_section av-m0zatl5b-6addf13da684793ebab5effcf0996629'   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 id=\"attachment_69442\" style=\"width: 890px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-69442\" class=\"wp-image-69442 size-full\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2024\/07\/dispositif-experimental2.jpg\" alt=\"\" width=\"880\" height=\"498\" 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: 880px) 100vw, 880px\" \/><\/a><p id=\"caption-attachment-69442\" class=\"wp-caption-text\">(c) Schematic of the stack of piezoelectric elements separated by electrodes. (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. Sarah Tessier\/IEMN\/CNRS<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/section><\/p><\/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-7  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><em><br \/>\nCNRS Research Director at the Institute of Electronics, Microelectronics and Nanotechnology (IEMN, CNRS\/Universit\u00e9 de Lille\/Universit\u00e9 Polytechnique Hauts-de-France)<\/em><\/li>\n<\/ul>\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-70419","post","type-post","status-publish","format-standard","hentry","category-newsletter"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/70419","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=70419"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/70419\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=70419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=70419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=70419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}