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<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="EN-GB" style="font-size:24.0pt">Seminar<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><span lang="EN-GB" style="font-size:24.0pt">Friday 6 June 2025, starting at 15:30 (walk-in with drinks from 15:15)<o:p></o:p></span></p>
<p class="MsoNormal" align="center" style="text-align:center"><span lang="EN-GB" style="font-size:24.0pt">VO Building, room Spectrum 5 (2<sup>nd</sup> floor); VU Campus, De Boelelaan 1100<o:p></o:p></span></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="EN-GB" style="font-size:24.0pt">Prof. Eric Potma<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="EN-GB" style="font-size:24.0pt">Dept of Chemistry, University of California Irvine, USA<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="EN-GB" style="font-size:24.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="en-NL" style="font-size:24.0pt">Linear and Nonlinear Optical Properties of Silicon at the Nanoscale<o:p></o:p></span></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span lang="en-NL" style="font-size:18.0pt">Abstract: Silicon, the second most abundant element on Earth, plays a key role in modern opto-electronics. Nonetheless, compared to other semiconductor
materials, the optical absorption coefficient of silicon is rather weak, a property that has stifled the development of more efficient devices, including photovoltaics. Some of these limitations can be overcome at the nanoscale, where the interaction between
light and matter in the near zone can be notably different compared to far-field light-matter interactions. In this presentation, we will highlight three unusual near-field optical phenomena of silicon, including a dramatic enhancement of linear absorption
enabled by confined light, an extraordinarily efficient nonlinear absorption at nanostructured Si surfaces, and the ability of nanostructured silicon to boost coherent Raman scattering of molecular targets.<o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span lang="en-NL" style="font-size:24.0pt">You are all welcome to attend, Freek Ariese<o:p></o:p></span></p>
<p class="MsoNormal" align="center" style="text-align:center"><span lang="en-NL" style="font-size:24.0pt"><o:p> </o:p></span></p>
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