{"id":14036,"date":"2021-05-04T21:04:14","date_gmt":"2021-05-04T19:04:14","guid":{"rendered":"http:\/\/cienciagandia.webs.upv.es\/?p=14036"},"modified":"2021-05-04T21:04:10","modified_gmt":"2021-05-04T19:04:10","slug":"innovadors-interferometres-ultra-compactes","status":"publish","type":"post","link":"https:\/\/cienciagandia.webs.upv.es\/ca\/2021\/05\/innovadors-interferometres-ultra-compactes\/","title":{"rendered":"Innovadors interfer\u00f2metres ultra compactes"},"content":{"rendered":"<p>Personal investigador liderat per <a href=\"https:\/\/www.upv.es\/pls\/oalu\/sic_person.Info?p_alias=JAIGARRU&amp;P_IDIOMA=v\"><strong>Jaime Garc\u00eda Rup\u00e9rez<\/strong><\/a> del <a href=\"http:\/\/www.upv.es\/contenidos\/CGANDIA\/index-va.html\">Campus de Gandia de la Universitat Polit\u00e8cnica de Val\u00e8ncia\u00a0 <\/a>ha desenvolupat una nova configuraci\u00f3 d&#8217;estructura fot\u00f2nica: uns<strong> innovadors interfer\u00f2metres <\/strong>ultra compactes que poden integrar-se en un xip de redu\u00efdes dimensions, per al desenvolupament de sistemes \u00f2ptics com sensors, moduladors o commutadors.<\/p>\n<p>L&#8217;\u00fas d&#8217;aquests nous interfer\u00f2metres s&#8217;est\u00e9n a qualsevol \u00e0mbit d&#8217;aplicaci\u00f3 de la fot\u00f2nica integrada, com per exemple la biomedicina, concretament en el desenvolupament de <strong>dispositius\u00a0 <em>lab on a chip<\/em> (LOC)<\/strong><strong>, <\/strong>utilitzats per a detectar <strong>preco\u00e7ment components biol\u00f2gics relacionats amb certes malalties<\/strong>, sense necessitat de personal qualificat. Els nous interfer\u00f2metres tamb\u00e9 es podrien utilitzar en<strong> sistemes on-chip m\u00e9s potents, per a la transmissi\u00f3 i encaminament de gran quantitat de dades en xarxes com la 5G.<\/strong><\/p>\n<p><strong>INNOVACI\u00d3 DE REFER\u00c8NCIA<\/strong><\/p>\n<p>Aquests innovadors interfer\u00f2metres ultra compactes utilitzen el fenomen denominat d&#8217;ona lenta per a millorar la seua sensibilitat. La innovaci\u00f3, demostrada per primera vegada, s&#8217;ha publicat en una de les revistes cient\u00edfiques internacionals m\u00e9s rellevants en l&#8217;\u00e0mbit de l&#8217;\u00f2ptica: <a href=\"https:\/\/www.nature.com\/lsa\/\"><strong><em>Light: Science and Applications<\/em>,<\/strong><\/a> del grup Nature, en l&#8217;article <strong>\u201c<\/strong><a href=\"https:\/\/www.nature.com\/articles\/s41377-020-00460-y\"><strong>Slow light bimodal interferometry in one-dimensional photonic crystal waveguides\u201d.<\/strong><\/a><\/p>\n<p><strong>\u00a0<a href=\"http:\/\/www.upv.es\/pls\/oalu\/sic_person.info?PE=K5MRNhA8C7gm2AaiRbad4GuVxe4FKrdv8yLXS9CGkO%2F0i7lVQyCjFXaFOtRc0p0zzESFwY2Ua8hW%2FP0lsgPW4fKGSDEH2ITn3GMIHEnHME9X9GB1DLNoZg%3D%3D&amp;P_IDIOMA=v&amp;P_VISTA=normal\">Luis Torrijos<\/a><\/strong>, <a href=\"http:\/\/www.upv.es\/pls\/oalu\/sic_person.info?PE=K5MRNhA8C7gm2AaiRbad4IYHmepC35XjQKsYs3gRXxD0i7lVQyCjFXaFOtRc0p0zT4835jE0xObOD978EuW7Gs4bM%2FW%2F4HfcfqRsi885nDUWZkbWLaJz1A%3D%3D&amp;P_IDIOMA=v&amp;P_VISTA=normal\"><strong>Amadeu Griol<\/strong><\/a> i<strong> <a href=\"https:\/\/www.upv.es\/pls\/oalu\/sic_person.Info?p_alias=JAIGARRU&amp;P_IDIOMA=v\">Jaime Garc\u00eda Rup\u00e9rez<\/a><\/strong> s\u00f3n els autors de la investigaci\u00f3, que \u00e9s un dels resultats de la <strong>tesi doctoral<\/strong> que est\u00e0 finalitzant Luis Torrijos sota la direcci\u00f3 de Garc\u00eda Rup\u00e9rez, docent i investigador del Campus de Gandia. S&#8217;ha sol\u00b7licitat la protecci\u00f3 mitjan\u00e7ant patent d&#8217;aquest desenvolupament.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-14022\" src=\"https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Captura-Garci\u0301a-Rupe\u0301rez-889x500.png\" alt=\"\" width=\"772\" height=\"434\" srcset=\"https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Captura-Garci\u0301a-Rupe\u0301rez-889x500.png 889w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Captura-Garci\u0301a-Rupe\u0301rez-444x250.png 444w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Captura-Garci\u0301a-Rupe\u0301rez-768x432.png 768w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Captura-Garci\u0301a-Rupe\u0301rez-150x84.png 150w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Captura-Garci\u0301a-Rupe\u0301rez.png 1280w\" sizes=\"auto, (max-width: 772px) 100vw, 772px\" \/><\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-14028 alignright\" src=\"https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/luis-torrijos-moran-500x500.jpg\" alt=\"\" width=\"326\" height=\"326\" srcset=\"https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/luis-torrijos-moran-500x500.jpg 500w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/luis-torrijos-moran-250x250.jpg 250w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/luis-torrijos-moran-150x150.jpg 150w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/luis-torrijos-moran.jpg 512w\" sizes=\"auto, (max-width: 326px) 100vw, 326px\" \/><\/strong><\/p>\n<p><strong>\u00a0LA COMPLEXITAT DEL DISSENY NANO D&#8217;INTERFER\u00d2METRES<\/strong><\/p>\n<p>La <strong>miniaturitzaci\u00f3 i integraci\u00f3 de circuits \u00f2ptics en dispositius cada vegada m\u00e9s xicotets<\/strong> \u00e9s un <strong>dels reptes fonamentals<\/strong> de la investigaci\u00f3 de les \u00faltimes d\u00e8cades. El disseny d&#8217;estructures \u00f2ptiques integrades com els interfer\u00f2metres, a escales nanom\u00e8triques (1 mili\u00f3 de vegades m\u00e9s xicoteta que el gruix del cabell hum\u00e0), presenta grans dificultats, ja que la longitud de l&#8217;interfer\u00f2metre \u00e9s clau per a la seua capacitat de mesurament, segons explica l&#8217;investigador Luis Torrijos.<\/p>\n<p>\u201cUn interfer\u00f2metre cl\u00e0ssic divideix un feix de llum en dos camins \u00f2ptics o guies d&#8217;ona diferents per a despr\u00e9s tornar a recombinar-ho. Com m\u00e9s gran \u00e9s la difer\u00e8ncia de longitud entre els dos camins, m\u00e9s informaci\u00f3 i, per tant, m\u00e9s sensible \u00e9s l&#8217;interfer\u00f2metre. <strong>La nostra innovaci\u00f3 consisteix a utilitzar una guia de cristall fot\u00f2nic unidimensional<\/strong>, \u00e9s a dir, una estructura amb una periodicitat comparable a la longitud d&#8217;ona de la llum de propagaci\u00f3, que suporta dos tipus de llum, un amb una velocitat molt redu\u00efda en comparaci\u00f3 amb l&#8217;altre. D&#8217;aquesta forma aconseguim un desfasament considerable sense augmentar la longitud del cam\u00ed f\u00edsic de l&#8217;interfer\u00f2metre, la qual cosa suposa una <strong>reducci\u00f3 notable en la grand\u00e0ria final del dispositiu<\/strong>\u201d, continua Torrijos.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-14031\" src=\"https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Figura-1-Interferometri\u0301a-bimodal-de-luz-lenta-en-gui\u0301as-de-ondas-de-cristal-foto\u0301nico-unidimensional-382x500.jpg\" alt=\"\" width=\"428\" height=\"560\" srcset=\"https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Figura-1-Interferometri\u0301a-bimodal-de-luz-lenta-en-gui\u0301as-de-ondas-de-cristal-foto\u0301nico-unidimensional-382x500.jpg 382w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Figura-1-Interferometri\u0301a-bimodal-de-luz-lenta-en-gui\u0301as-de-ondas-de-cristal-foto\u0301nico-unidimensional-191x250.jpg 191w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Figura-1-Interferometri\u0301a-bimodal-de-luz-lenta-en-gui\u0301as-de-ondas-de-cristal-foto\u0301nico-unidimensional-768x1006.jpg 768w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Figura-1-Interferometri\u0301a-bimodal-de-luz-lenta-en-gui\u0301as-de-ondas-de-cristal-foto\u0301nico-unidimensional-115x150.jpg 115w, https:\/\/cienciagandia.webs.upv.es\/wp-content\/uploads\/2021\/04\/Figura-1-Interferometri\u0301a-bimodal-de-luz-lenta-en-gui\u0301as-de-ondas-de-cristal-foto\u0301nico-unidimensional.jpg 900w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/><\/p>\n<p>\u201cLa idea va sorgir a partir de les altes sensibilitats obtingudes fent \u00fas de configuracions interferom\u00e8triques bimodals basades en guies normals, de manera que es va pensar en l&#8217;opci\u00f3 que el comportament d&#8217;ona lenta present en els cristalls fot\u00f2nics poguera millorar encara m\u00e9s aquestes prestacions\u201d, puntualitza l&#8217;investigador.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">Font: <strong>Sandra Barrancos<\/strong><\/p>\n<p style=\"text-align: center;\">\u00c0rea de Comunicaci\u00f3 Universitat Polit\u00e8cnica de Val\u00e8ncia<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Personal investigador liderat per Jaime Garc\u00eda Rup\u00e9rez del Campus de Gandia de la Universitat Polit\u00e8cnica de Val\u00e8ncia\u00a0 ha desenvolupat una nova configuraci\u00f3 d&#8217;estructura fot\u00f2nica: uns &#8230; <a title=\"Innovadors interfer\u00f2metres ultra compactes\" class=\"read-more\" href=\"https:\/\/cienciagandia.webs.upv.es\/ca\/2021\/05\/innovadors-interferometres-ultra-compactes\/\" aria-label=\"Read more about Innovadors interfer\u00f2metres ultra compactes\">Llegir m\u00e9s<\/a><\/p>\n","protected":false},"author":15,"featured_media":14019,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[252],"tags":[],"class_list":["post-14036","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Innovadors interfer\u00f2metres ultra compactes - Campus de Gandia Ciencia - UPV Universitat Polit\u00e8cnica de Val\u00e8ncia<\/title>\n<meta name=\"description\" content=\"Investigadors de la UPV ha desenvolupat uns innovadors interfer\u00f2metres ultra compactes que poden integrar-se en un xip de redu\u00efdes dimensions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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