Paper 13139-15
Paper 13139-15
Linear and nonlinear absorption in nanoscale silicon (Invited Paper)
18 August 2024 • 4:40 PM - 5:05 PM PDT | Conv. Ctr. Room 11B
Abstract
Silicon is a ubiquitous material in electronics, yet its implementation in opto-electronic devices is significantly less prominent due to its underwhelming optical properties compared to other semiconducting materials. In this presentation, we discuss novel strategies for improving light absorption in silicon at the nanoscale. First, we show that the principle of photon confinement on the nanometer scale enables new transitions in silicon that are otherwise momentum-forbidden, providing a mechanism for absorption enhancement by several orders of magnitude. Second, we offer new approaches for enhancing two-photon absorption in silicon and show that such strategies can be used for rapid mid-infrared imaging with Si-based cameras.
Presenter
Univ. of California, Irvine (United States)
Eric got his Masters at the University of Groningen in 1996, where he also received his Ph.D. degree in 2001. While working in the ultrafast spectroscopy group of Prof. Douwe Wiersma, Eric focused his research on the development of laser sources for microscopy and the application of nonlinear methods to optical imaging. In 2001, Potma joined the group of Prof. Sunney Xie at Harvard University as a postdoctoral fellow. During this time, he was been involved with projects on synchronizing mode-locked lasers, visualizing lipid bilayers with coherent Raman scattering microscopy and vibrational imaging of tissue in vivo at video rate. In 2005, Eric joined the Department of Chemistry at the University of California in Irvine, where he currently is a Professor of Chemistry. His group focuses on the characterization of nano-structured materials and biological tissues with the aid of new nonlinear optical imaging techniques.