{"id":46877,"date":"2021-07-19T13:58:22","date_gmt":"2021-07-19T11:58:22","guid":{"rendered":"https:\/\/www.iemn.fr\/articles-temporaires-anglais\/capteurs-resonnants-passifs-tendances-et-perspectives-davenir-2.html"},"modified":"2021-07-19T15:16:06","modified_gmt":"2021-07-19T13:16:06","slug":"capteurs-resonnants-passifs-tendances-et-perspectives-davenir-2","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/newsletter\/capteurs-resonnants-passifs-tendances-et-perspectives-davenir-2.html","title":{"rendered":"Passive Resonant Sensors: Trends and Future Prospects"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_textblock  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_40_ce839svpo82b\" 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\/09\/sliders_carc1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/09\/sliders_carc1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/09\/sliders_carc1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/09\/sliders_carc1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/09\/sliders_carc1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/09\/sliders_carc1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/09\/sliders_carc1-705x73.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:360px;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>RESEARCH GROUP: AIMAN-FILMS<\/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-46877'><div class='entry-content-wrapper clearfix'>\n<section  class='av_textblock_section av-kralry1d-438ffa3bc261568007463af25625e5ee'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h3 style=\"text-align: center;\">Passive Resonant Sensors: Trends and Future Prospects<\/h3>\n<\/div><\/section>\n<div  class='hr av-oomgiq-7355286e8861c69edf22a2b2b779ec0e hr-default  avia-builder-el-2  el_after_av_textblock  el_before_av_textblock'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-krak96w9-69850c2c2ec21741d52586d3cdba3c32'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><blockquote>\n<p><strong>The choice of topic was \u00ab\u00a0Passive Resonant Sensors: Trends and Future Prospects\u00a0\u00bb [1]. The review focuses on technologies that exploit the \u00ab\u00a0resonance phenomenon\u00a0\u00bb that occurs with all types of waves: acoustic, electromagnetic and optical. The sensors considered include acoustic, magneto-elastic and electromagnetic transducers. They are presented through their relevant technological aspects and their main advantages, in particular their integrability in embedded systems and\/or their energy autonomy requirement. The use of these resonant sensors is illustrated in a wide variety of applications (Fig. 1), ranging from environmental, structural, and food packaging monitoring, to wearable or implanted sensors of physiological parameters in health-related, Internet of Things (IoT), and Industry 4.0 applications.<\/strong><\/p>\n<\/blockquote>\n<\/div><\/section>\n<section  class='av_textblock_section av-krakqjwa-a8a37bef6ebcb6c380fb62f50d9a7b08'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel1AT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46851 size-full\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel1AT.jpg\" alt=\"\" width=\"750\" height=\"470\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel1AT.jpg 750w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel1AT-300x188.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel1AT-16x10.jpg 16w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel1AT-705x442.jpg 705w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #808000;\"><em>Fig 1. General scheme of the review article: Passive resonant sensors, designs and applications.<\/em><\/span><\/p>\n<p style=\"text-align: center;\">[1] H. Hallil <em>et al<\/em>., \u00ab\u00a0<a href=\"https:\/\/ieeexplore.ieee.org\/abstract\/document\/9376916\" target=\"_blank\" rel=\"noopener\">Passive Resonant Sensors: Trends and Future Prospects,\u00a0\u00bb in <em>IEEE Sensors Journal<\/em><\/a>, vol. 21, no. 11, pp. 12618-12632, 1 June, 2021, doi: 10.1109\/JSEN.2021.3065734.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2vfzxe-8afea664b99f3d84c0ac46482b7c4e4b\">\n.flex_column.av-2vfzxe-8afea664b99f3d84c0ac46482b7c4e4b{\nborder-radius:4px 4px 4px 4px;\npadding:20px 20px 20px 20px;\nbackground-color:#d4eab6;\n}\n<\/style>\n<div  class='flex_column av-2vfzxe-8afea664b99f3d84c0ac46482b7c4e4b av_one_full  avia-builder-el-5  el_after_av_textblock  el_before_av_one_half  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-krakstjy-01491cf7c27523b4c20671d5a8166409'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>The AIMAN-FILMS group of IEMN has been working for more than fifteen years on the development of ultrasensitive sensor technologies allowing to push the limits of detection in terms of resolution. The review article highlights the main results obtained on magnetic field sensor technologies based on resonant MEMS exploiting magneto-electric coupling in composite structures based on magneto-elastic\/piezoelectric thin films, magneto-elastic coupling in surface elastic waveguides functionalized by nano-structured magneto-elastic thin films. Temperature and stress sensors exploiting surface or guided elastic waves to allow operation in harsh environments. Sensors of physical or biochemical quantities exploiting a resonant cavity design based on the concept of phononic band gaps and the resulting quasi-flat defect modes.<\/strong><\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1w1vg5e-baa3102336d6e1aaad4b6f47084a694e\">\n.flex_column.av-1w1vg5e-baa3102336d6e1aaad4b6f47084a694e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1w1vg5e-baa3102336d6e1aaad4b6f47084a694e av_one_half  avia-builder-el-7  el_after_av_one_full  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-krakw5v4-b9b4513461261315e961376e0713f386'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70\">\n.av_font_icon.av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70{\ncolor:#669933;\nborder-color:#669933;\n}\n.av_font_icon.av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70 .av-icon-char{\nfont-size:50px;\nline-height:50px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70 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='\ue885' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/h4>\n<p><strong><span style=\"color: #669933;\">1)\u00a0 <\/span><\/strong><strong><span style=\"color: #669933;\">Magnetic field sensor designs based on magnetoelectric and magneto-elastic effects have been proposed in 2007 and 2020.<\/span><br \/>\nGiant multi-physics couplings have been obtained in the vicinity of a critical state called Spin Reorientation Transition (SRT).\u00a0 A magnetoelectric coefficient of 40 V\/(cm.Oe) was reported in 2007 using for the first time a Film\/Film composite MEMS cantilever consisting of a nanostructured (FeCo-TbCo)n layer deposited on a piezoelectric aluminum nitride AlN layer [2].<\/strong><\/p>\n<p><strong>In 2020, we proposed a magnetic field sensor design exploiting the interaction of a transverse surface wave with a nanostructured magnetoelastic thin film. The magneto-elastic layer allows guiding and confining the excited horizontal transverse surface wave to the surface of a piezoelectric substrate such as Quartz. This design achieves the intrinsic value of magnetic field sensitivity of a magneto-elastic thin film with a modulation of the order of 3% of the propagation velocity. This value defines the state of the art of magnetic field sensors based on the use of this detection mechanism [3].<\/strong><\/p>\n<p><strong>These solutions are very promising for some medical diagnostic problems, especially those that exploit biomagnetic signals: magnetoencephalography (MEG) and magnetocardiography (MCG).<\/strong><\/p>\n<p>[2] Tiercelin et al., \u201cMagnetoelectric effect near spin reorientation transition in giant magnetostrictive-aluminum nitride thin film structure,\u201d Appl. Phys. Lett., vol. 93, no. 16, Oct. 2008, Art. no. 162902, doi:10.1063\/1.3001601.<\/p>\n<p>[3] A. Mazzamurroet al., \u201cGiant magnetoelastic coupling in alove acoustic waveguide based onTbCo2\/FeCo nanostructured film on ST-cut quartz\u201d, Phys. Rev. Applied., vol. 13, no. 4, Apr. 2020, Art. no. 044001, doi:10.1103\/PhysRevApplied.13.044001.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1pwe742-812dd9b1ad75ef960e04fc2c3e3b1b02\">\n.flex_column.av-1pwe742-812dd9b1ad75ef960e04fc2c3e3b1b02{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1pwe742-812dd9b1ad75ef960e04fc2c3e3b1b02 av_one_half  avia-builder-el-10  el_after_av_one_half  el_before_av_one_half  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-krakw5v4-b9b4513461261315e961376e0713f386'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel2AT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46856 size-full\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel2AT.jpg\" alt=\"\" width=\"700\" height=\"250\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel2AT.jpg 700w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel2AT-300x107.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel2AT-16x6.jpg 16w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #808000;\"><em>Fig 2. Horizontal shear surface wave\u2019s devices functionalized with TbCo<sub>2<\/sub>\/FeCo multilayered thin film (left). Scanning Transmission Electron Microscopy picture of the multilayered TbCo<sub>2<\/sub>\/FeCo nanostructured thin film (overall thickness: 200 nm).<\/em><\/span><\/p>\n<p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel3AT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46859 size-full\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel3AT.jpg\" alt=\"\" width=\"552\" height=\"498\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel3AT.jpg 552w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel3AT-300x271.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel3AT-13x12.jpg 13w\" sizes=\"auto, (max-width: 552px) 100vw, 552px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #808000;\"><em>Fig 3. Giant magneto-elastic coupling 2.5% obtained with multilayered TbCo<sub>2<\/sub>\/FeCo thin film combined to pure surface shear wave on quartz substrate at 1.2 GHz<br \/>\n<\/em><\/span><\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-15xnpmq-3a2ae9eb7192285384d628db5f93c97a\">\n.flex_column.av-15xnpmq-3a2ae9eb7192285384d628db5f93c97a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-15xnpmq-3a2ae9eb7192285384d628db5f93c97a av_one_half  avia-builder-el-12  el_after_av_one_half  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-krakw5v4-b9b4513461261315e961376e0713f386'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel4AT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46857 size-full\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel4AT.jpg\" alt=\"\" width=\"695\" height=\"271\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel4AT.jpg 695w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel4AT-300x117.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel4AT-16x6.jpg 16w\" sizes=\"auto, (max-width: 695px) 100vw, 695px\" \/><\/a><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel5AT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46858 size-full\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel5AT.jpg\" alt=\"\" width=\"461\" height=\"291\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel5AT.jpg 461w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel5AT-300x189.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/07\/visuel5AT-16x10.jpg 16w\" sizes=\"auto, (max-width: 461px) 100vw, 461px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #808000;\"><em>Fig. 4. a) Waveguide representation with cavity resonator made of nanomaterials as a cap layer.<br \/>\nb) Localized whispering gallery mode in the cap layer.<br \/>\nc) Demultiplexer design based on local resonance of cap layer.<\/em><\/span><\/p>\n<p>[5] Moutaouekkil et al., \u201cHighly confined radial contour modes in phononic crystal plate based on pillars with cap layers,\u201d J. Appl. Phys., vol. 126, no. 5, Aug. 2019, Art. no. 055101;<\/p>\n<p>[6] M Moutaouekkil al., Acoustic isolation of disc\u2010shaped modes using periodic corrugated plate\u2010based phononic crystal, Electronics Letters 54 (5), 2018, 301-303.<\/p>\n<div  class='avia-button-wrap av-rpqvoq-3ceef33156ab21f00e9fd3e8e7b75838-wrap avia-button-left  avia-builder-el-14  avia-builder-el-no-sibling'><a href='mailto:abdelkrim.talbi@univ-lille.fr'  class='avia-button av-rpqvoq-3ceef33156ab21f00e9fd3e8e7b75838 av-link-btn avia-icon_select-yes-left-icon avia-size-small avia-position-left avia-color-silver'   aria-label=\"abdelkrim.talbi@univ-lille.fr\"><span class='avia_button_icon avia_button_icon_left' aria-hidden='true' data-av_icon='\ue805' data-av_iconfont='entypo-fontello'><\/span><span class='avia_iconbox_title' >abdelkrim.talbi@univ-lille.fr<\/span><\/a><\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ninede-c3504b6b877009183ff18540512c548b\">\n.flex_column.av-ninede-c3504b6b877009183ff18540512c548b{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ninede-c3504b6b877009183ff18540512c548b av_one_half  avia-builder-el-15  el_after_av_one_half  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-krakw5v4-b9b4513461261315e961376e0713f386'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70\">\n.av_font_icon.av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70{\ncolor:#669933;\nborder-color:#669933;\n}\n.av_font_icon.av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70 .av-icon-char{\nfont-size:50px;\nline-height:50px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-c7a37b4dfac2f0b56aaa5aeedc1e2c70 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='\ue885' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/h4>\n<p><strong><span style=\"color: #669933;\">2)\u00a0\u00a0\u00a0\u00a0 <\/span><\/strong><strong><span style=\"color: #669933;\">Acoustic wave resonators are very promising candidates for chemical and biological gravimetric detection.<\/span><br \/>\nIn order to push the detection limit of current systems in terms of resolution, the AIMAN-FILMs group and the Ephoni team of the Physics group are collaborating to exploit the potential of phononic crystals and meta-materials for the design of MEMS resonators with minimal dissipation to the support structure and thus drastically improve the quality factor. Several designs exploiting surface or thin plate elastic modes in piezoelectric materials combined with a two-dimensional (2D) surface phononic crystal (SPnC) have been proposed. The SPnC consists of periodic mechanical resonators such as pillars or drilled holes. The proposed designs allow the realization of advanced functions based on the control of the elastic wave propagation: sub-wavelength confinement, wave guiding, demultiplexing function.<\/strong><\/p>\n<p><strong>Among the proposed designs, the most promising are those exploiting the nearly flat defect modes located in the band gap of a phononic crystal. The designs highlighted here are proposed in the framework of Mohammed Moutaouekkil thesis of and have been the subject of two publications in 2018 and 2019 [4-5]. The phononic crystal is made of a micro-structured plate on the surface in the form of ribbons or pillars, which allows to obtain a wide band gap.\u00a0 The defect modes are introduced by depositing a nanometer thick gold disk on the surface of the ribbons or pillars.<\/strong><\/p>\n<p><strong>These designs are very promising for the design of gravimetric sensors with a detection threshold up to attogram.\u00a0 Indeed, the design allows to confine the elastic wave at the nanometer scale and consequently reduce the mass of the resonator to make it comparable with the mass of the objects to be detected.<\/strong><\/p>\n<p><strong>The SPnC can also be used to significantly slow down the speed of the acoustic waves based on local resonance phenomena and, consequently, limit the acoustic radiation towards the surrounding media, especially in case of contact with a liquid.<\/strong><\/p>\n<\/div><\/section><\/div><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[297],"tags":[],"class_list":["post-46877","post","type-post","status-publish","format-standard","hentry","category-newsletter"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/46877","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=46877"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/46877\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=46877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=46877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=46877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}