{"id":26106,"date":"2018-04-25T09:58:15","date_gmt":"2018-04-25T07:58:15","guid":{"rendered":"https:\/\/www.iemn.fr\/?page_id=26106"},"modified":"2026-03-20T15:37:22","modified_gmt":"2026-03-20T13:37:22","slug":"tpia","status":"publish","type":"page","link":"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/tpia","title":{"rendered":"Group : TPIA"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_49_tptkqoa3peaj\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/sliders_groupe_tpia-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:300px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : TPIA<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-26106'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-leijegch-f8372282d15a7e9f4230f1f2eda78057\">\n#top .av-special-heading.av-leijegch-f8372282d15a7e9f4230f1f2eda78057{\npadding-bottom:0;\n}\nbody .av-special-heading.av-leijegch-f8372282d15a7e9f4230f1f2eda78057 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-leijegch-f8372282d15a7e9f4230f1f2eda78057 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-leijegch-f8372282d15a7e9f4230f1f2eda78057 av-special-heading-h2  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >TPIA Group (Transduction, Propagation et Imagerie Acoustique)<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-js0hqeqy-d1ac741a88b365449792cab93465469d\">\n#top .hr.av-js0hqeqy-d1ac741a88b365449792cab93465469d{\nmargin-top:10px;\nmargin-bottom:10px;\n}\n.hr.av-js0hqeqy-d1ac741a88b365449792cab93465469d .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-js0hqeqy-d1ac741a88b365449792cab93465469d hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-t1yoer-f601b493965c934e5b6d9b3d01fb785a'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><blockquote>\n<h4>Membres: Assaad (Pr.), F. Benmeddour (Pr.), L. Chehami (MCF), M.Chrifi Alaoui (MCF), C. Delebarre (Pr.), M. Duquennoy (Pr.), F. Jenot (Pr., head of the group), E. Moulin (Pr.), M. Ouaftouh (Pr.), Z. Oumekloul (MCF), W.-J. Xu (MCF)<\/h4>\n<\/blockquote>\n<p>The research activities of the TPIA group concern the field of physical acoustics. The main objectives are to understand the interactions of ultrasonic waves with matter, propose different methods of analysis (inverse problems) adapted to monitoring structure integrity and material properties, model the behaviour of ultrasonic sources and their interactions with materials and develop tools for the optimal design of systems.<\/p>\n<p>The cutting-edge research conducted by the TPIA group is based on the skills and expertise accumulated over more than 35 years within the Opto-Acousto-Electronics Department (DOAE) in the field of ultrasound and their applications in different areas. The group\u2019s research activities cover both fundamental and technological innovations in systems. They are very open to technological progress (microelectronics, MEMS) and deal with topics of fundamental nature or linked to industrial needs by adopting a balanced approach between modelling, experimentation, and inverse problems resolution. These research activities are all the more important with the emergence of new materials such as functional surface materials (coated with fine or thin layers) and materials with property gradients (commonly used in the field of transport for example), as well as socio-economic issues related to industrial developments.<\/p>\n<p>The TPIA group\u2019s topics pertain to Physical and Engineering Sciences. They are organized around one theme: \u00ab Guided acoustics and Non-Destructive Testing (NDT) \u00bb.<\/p>\n<p>It covers a broad spectrum in the field of ultrasound, from wave generation to inverse problems and imaging. The activities are well-established and have their own sources of funding and collaborations. One of the goals is to improve and optimize the characterization of various structures using the properties of surface acoustic waves and Lamb-type modes. It consists in developing methods of characterization based on the use of dispersion phenomena to finally obtain geometric and\/or mechanical characteristics of structures. The resulting applications are related to many sectors of activity from microelectronics to transportation. Non-contact excitation and detection methods can be considered in pulsed or harmonic regimes. A wide range of samples, from granular materials to thin films, were investigated. It also relies on the characterization processes and\/or devices developed.<\/p>\n<h4>The main thematic areas are:<\/h4>\n<\/div><\/section>\n<div class='flex_column_table av-1ohrwoq-610f867bc8a88aad7df1c582200f6424 sc-av_one_fourth av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1ohrwoq-610f867bc8a88aad7df1c582200f6424\">\n#top .flex_column_table.av-equal-height-column-flextable.av-1ohrwoq-610f867bc8a88aad7df1c582200f6424{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-1ohrwoq-610f867bc8a88aad7df1c582200f6424{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\nheight:800px;\n}\n<\/style>\n<div  class='flex_column av-1ohrwoq-610f867bc8a88aad7df1c582200f6424 av_one_fourth  avia-builder-el-4  el_after_av_textblock  el_before_av_one_fourth  first flex_column_table_cell av-equal-height-column av-align-middle av-zero-column-padding  column-top-margin'     ><div  class='avia-video av-mhabuplg-c0c547f2ddeb04863d3cb1625a3d7766 avia-video-9-16 av-no-preview-image avia-video-load-always avia-video-html5'  itemprop=\"video\" itemtype=\"https:\/\/schema.org\/VideoObject\"  data-original_url='https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/10\/dispositif_ultrason_laser_2.mp4'><video class='avia_video'    preload=\"auto\"  controls id='player_26106_1237131007_364332990'><source src='https:\/\/www.iemn.fr\/wp-content\/uploads\/2025\/10\/dispositif_ultrason_laser_2.mp4' type='video\/mp4' \/><\/video><\/div><\/div>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18b543e-097c23986eb90ce869a8beae3524c215\">\n#top .flex_column_table.av-equal-height-column-flextable.av-18b543e-097c23986eb90ce869a8beae3524c215{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-18b543e-097c23986eb90ce869a8beae3524c215{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-18b543e-097c23986eb90ce869a8beae3524c215 av_one_fourth  avia-builder-el-6  el_after_av_one_fourth  el_before_av_one_fourth  flex_column_table_cell av-equal-height-column av-align-middle av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-na6lkq-b57b2e57645facb23de83c1d28a6e4c5'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-27287 size-full\" title=\"Transduction and sensors\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_1.jpg\" alt=\"Transduction and sensors\" width=\"432\" height=\"288\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_1.jpg 432w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_1-300x200.jpg 300w\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Transduction and sensors<\/p>\n<\/div><\/section><\/div>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-z2g396-6b4d7a2589b887944b2d1597422c025f\">\n#top .flex_column_table.av-equal-height-column-flextable.av-z2g396-6b4d7a2589b887944b2d1597422c025f{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-z2g396-6b4d7a2589b887944b2d1597422c025f{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-z2g396-6b4d7a2589b887944b2d1597422c025f av_one_fourth  avia-builder-el-8  el_after_av_one_fourth  el_before_av_one_fourth  flex_column_table_cell av-equal-height-column av-align-middle av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jo8grxhw-68c42346be21da140a477caf4fc0f9f0'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_2-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-27298 size-full\" title=\"Propagation: guided acoustic waves and inverse problems\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_2-1.png\" alt=\"Propagation: guided acoustic waves and inverse problems\" width=\"434\" height=\"353\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_2-1.png 434w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_2-1-300x244.png 300w\" sizes=\"auto, (max-width: 434px) 100vw, 434px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Propagation: guided acoustic waves and inverse problems<\/p>\n<\/div><\/section><\/div>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-n193i2-ffb82572239da221f482a0928f616ba2\">\n#top .flex_column_table.av-equal-height-column-flextable.av-n193i2-ffb82572239da221f482a0928f616ba2{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-n193i2-ffb82572239da221f482a0928f616ba2{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-n193i2-ffb82572239da221f482a0928f616ba2 av_one_fourth  avia-builder-el-10  el_after_av_one_fourth  el_before_av_button  flex_column_table_cell av-equal-height-column av-align-middle av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jo8gv2uk-e079a8081659f3d66fa218fef45c6344'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-27295 size-full aligncenter\" title=\"Acoustic Imaging using distributed acoustic transducers\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_3.png\" alt=\"Acoustic Imaging using distributed acoustic transducers\" width=\"330\" height=\"186\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_3.png 330w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/groupe_tpia_3-300x169.png 300w\" sizes=\"auto, (max-width: 330px) 100vw, 330px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Acoustic Imaging using distributed acoustic transducers<\/p>\n<\/div><\/section><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n<div  class='avia-button-wrap av-mhac6gfp-d8e302341e75ef574e6ef3fad97c0293-wrap avia-button-center  avia-builder-el-12  el_after_av_one_fourth  el_before_av_button'><a href='https:\/\/www.uphf.fr\/iemn\/groupes-equipe\/tpia\/groupe-tpia' class='avia-button av-mhac6gfp-d8e302341e75ef574e6ef3fad97c0293 av-link-btn avia-icon_select-yes-left-icon avia-size-medium avia-position-center avia-color-theme-color' target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"TPIA (Transduction, Propagation and Acoustic Imaging)\"><span class='avia_button_icon avia_button_icon_left' aria-hidden='true' data-av_icon='\ue826' data-av_iconfont='entypo-fontello'><\/span><span class='avia_iconbox_title' >TPIA (Transduction, Propagation and Acoustic Imaging)<\/span><\/a><\/div>\n<div  class='avia-button-wrap av-mhad3pzr-90d3f58a00a2056e0680c175b140a74f-wrap avia-button-center  avia-builder-el-13  el_after_av_button  avia-builder-el-last'><a href='https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/11\/poster_groupe_tpia-2.pdf' class='avia-button av-mhad3pzr-90d3f58a00a2056e0680c175b140a74f av-link-btn avia-icon_select-yes-left-icon avia-size-medium avia-position-center avia-color-theme-color' target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Poster groupe TPIA\"><span class='avia_button_icon avia_button_icon_left' aria-hidden='true' data-av_icon='\ue84c' data-av_iconfont='entypo-fontello'><\/span><span class='avia_iconbox_title' >Poster groupe TPIA<\/span><\/a><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":101,"menu_order":110,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-26106","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/26106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=26106"}],"version-history":[{"count":14,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/26106\/revisions"}],"predecessor-version":[{"id":77518,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/26106\/revisions\/77518"}],"up":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/101"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=26106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}