<div dir="ltr"><p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:22pt;font-family:"times new roman",serif">Colloqui della Classe di Scienze<span></span></span></b></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center"><span lang="EN-US" style="font-size:22pt;font-family:"times new roman",serif"><span> </span></span></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><span style="font-size:16pt;font-family:"times new roman",serif">Giovedì 6 ottobre 2016 <br>
ore 15:00 </span><u><span style="font-size:16pt;font-family:"times new roman",serif"><span></span></span></u></p>

<p class="MsoNormal" style="margin-left:9pt;line-height:18pt"><u><span style="font-size:16pt;font-family:"times new roman",serif"><span><span style="text-decoration:none"> </span></span></span></u></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><u><span style="font-size:16pt;font-family:"times new roman",serif">Scuola Normale Superiore<span></span></span></u></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><span style="font-size:16pt;font-family:"times new roman",serif">Pisa<span></span></span></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><span style="font-size:16pt;font-family:"times new roman",serif">(Sala degli Stemmi)<span></span></span></p>

<pre style="text-align:center;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:16pt;font-family:"times new roman",serif"><br>
</span><b><span style="font-size:24pt;font-family:"times new roman",serif">Prof. </span></b><b><span style="font-size:24pt;font-family:arial,sans-serif"> </span></b><b><span style="font-size:24pt;font-family:"times new roman",serif">Federico Capasso</span></b></pre><pre style="text-align:center;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i style="font-family:arial,sans-serif"><span style="font-family:"times new roman",serif">(</span></i><i style="font-family:arial,sans-serif"><span style="font-family:"times new roman",serif">Harvard University, Cambridge MA)</span></i></pre>

<p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:16pt;font-family:"times new roman",serif">Terrà un
seminario dal titolo:<span></span></span></p>

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<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="EN-US" style="font-size:22pt;font-family:"times new roman",serif">“</span></b><b><span lang="EN-US" style="font-size:22pt;font-family:"times new roman",serif">Flat Optics with Metasurfaces<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">”</span><span></span></span></b></p>

<pre style="text-align:center;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="EN-US" style="font-size:12pt;font-family:"times new roman",serif"><span> </span></span></pre>

<p class="MsoNormal" style="text-align:justify"><b><span lang="EN-US" style="font-family:"times new roman",serif">Abstract:</span></b><span lang="EN-US" style="font-size:16pt;font-family:"times new roman",serif"> </span><span lang="EN-US" style="font-size:9.5pt;font-family:arial,sans-serif"> <span></span></span></p>

<p class="MsoNormal" style="text-align:justify"><i><span lang="EN-US" style="font-family:"times new roman",serif">The design of fundamental optical components such as
lenses, gratings, and holograms has remained essentially unchanged for at least
fifty years, relying on textbook refractive and diffractive optics.
Subwavelength structured surfaces known as metasurfaces are leading to a
fundamental reassessment of such designs with the emergence of optical
components that circumvent the limitations of standard ones and with entirely
new functions. Our recent formulation of the generalized laws of reflection and
refraction for metasurfaces has led us recently to demonstrate high quality
ultrathin dielectric metalenses with diffraction limited performance^1-3.
Finally I will give examples of how this approach can be used to create complex
vector beams.<span></span></span></i></p>

<p class="gmail-MsoListParagraphCxSpFirst" style="text-align:justify"><i><span lang="EN-US" style="font-size:12pt;line-height:115%;font-family:"times new roman",serif">1.<span style="font-style:normal;font-variant-numeric:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"times new roman"">     
</span></span></i><i><span lang="EN-US" style="font-size:12pt;line-height:115%;font-family:"times new roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">M. Khorasaninejad et al. Science<span class="gmail-apple-converted-space"> </span><b>352</b>,
1190 (2016)</span></i><i><span lang="EN-US" style="font-size:12pt;line-height:115%;font-family:"times new roman",serif"><span></span></span></i></p>

<p class="gmail-MsoListParagraphCxSpMiddle" style="text-align:justify"><i><span style="font-size:12pt;line-height:115%;font-family:"times new roman",serif">2.<span style="font-style:normal;font-variant-numeric:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"times new roman"">     
</span></span></i><i><span style="font-size:12pt;line-height:115%;font-family:"times new roman",serif">F. Aieta et al. </span></i><i><span style="font-size:12pt;line-height:115%;font-family:"times new roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Science
347, 1342 (2015)</span></i><i><span style="font-size:12pt;line-height:115%;font-family:"times new roman",serif"><span></span></span></i></p>

<p class="gmail-MsoListParagraphCxSpLast" style="text-align:justify"><i><span lang="EN-US" style="font-size:12pt;line-height:115%;font-family:"times new roman",serif">3.<span style="font-style:normal;font-variant-numeric:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"times new roman"">     
</span></span></i><i><span lang="EN-US" style="font-size:12pt;line-height:115%;font-family:"times new roman",serif">N.
Yu et al. Science 334, 333 (2011)<span></span></span></i></p>

<p class="MsoNormal" style="text-align:justify"><i><span style="font-family:"times new roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span> </span></span></i></p>

<p class="MsoNormal" style="text-align:justify"><span style="font-size:16pt;font-family:"times new roman",serif"><span> </span></span></p>

<p class="MsoNormal" style="text-align:justify"><span style="font-size:16pt;font-family:"times new roman",serif">Tutti gli interessati sono invitati a
partecipare.<span></span></span></p>

<p class="MsoNormal" style="text-align:justify"><span style="font-size:16pt;font-family:"times new roman",serif"><span> </span></span></p>

<p class="MsoNormal" style="text-align:justify"><span style="font-size:16pt;font-family:"times new roman",serif">Classe di Scienze Matematiche e Naturali<span></span></span></p>

<p class="MsoNormal" style="text-align:justify"><span style="font-size:16pt;font-family:"times new roman",serif"><span> </span></span></p><p class="MsoNormal" style="text-align:justify"><span style="font-size:16pt;font-family:"times new roman",serif"><span><br></span></span></p><div><div class="gmail_signature"><div dir="ltr"><div>Valeria Giuliani</div><div>Scuola Normale Superiore</div><div>Servizio alla Didattica e Allievi</div><div>tel. 050 509260</div><div>Piazza dei Cavalieri, 7</div><div>56126 Pisa</div><div>E-mail: <a href="mailto:valeria.giuliani@sns.it" target="_blank">valeria.giuliani@sns.it</a></div><div>E-mail: <a href="mailto:classi@sns.it" target="_blank">classi@sns.it</a></div></div></div></div>
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