San Diego Convention Center
San Diego, California, United States
19 - 23 August 2018
Plenary Events
Nanoscience + Engineering Plenary Session
Date: Monday 20 August 2018
Time: 8:30 AM - 12:00 PM
Location: Conv. Ctr. Room 20A
Session Chairs: Halina Rubinsztein-Dunlop, The Univ. of Queensland (Australia) and Mark L. Brongersma, Geballe Lab. for Advanced Materials (GLAM), Stanford Univ. (United States)

Plenary Presentations:

8:30 to 9:15 am: Plasmonic Nanostructures for Molecular Sensing and Actuation

Mikael Käll, Chalmers Univ. of Technology (Sweden)

The prospect of ultrasensitive, rapid, and cost-effective molecular analysis has been one of the main drivers behind the rapidly evolving field of plasmonics. I will illustrate this development by describing several recent molecular sensing and actuation experiments that are all based on the extremely efficient conversion of light from the far-field to or from the near-field by virtue of plasmon excitation in metal nanostructures. The examples utilize different kinds of molecular contrast (fluorescence, Raman scattering, refractive index, viscosity) as well as plasmon-enhanced thermal and optical forces for diverse applications, including controlled DNA release, detection of nerve gases, and studies of molecular interactions at the single molecule limit.

Mikael Käll is Professor of physics and Wallenberg Scholar at Chalmers University of Technology. In the late 1990’s, after PhD and post doc research on superconductivity, he switched to the field of nanooptics, where he has since contributed over 150 papers on diverse topics such as surface-enhanced Raman scattering, nanoplasmonic sensors, and optical manipulation of metal nanoparticles.

9:15 to 10:00 am: Rapidly Time-Variant Metadevices for Linear Frequency Conversion

Bumki Min, KAIST (Korea, Republic of)

Energy conversion in a physical system requires time-translation invariance breaking according to Noether's theorem. Closely associated with this symmetry-conservation relation, the frequencies of electromagnetic waves are found to be converted as the waves propagate through a temporally varying medium. Thus, effective temporal control of the medium, be it artificial or natural, through which the waves are propagating, lies at the heart of linear frequency conversion. Here, we explain the basic principle of linear frequency conversion in a rapidly time-variant metadevice and show various interesting properties and future prospects of rapidly time-variant metadevices.

Bumki Min received B.S. and M.S. degrees in Electrical Engineering from Seoul National University in 1999 and 2001, and M.S. and Ph.D. degrees in Applied Physics from Caltech in 2003 and 2006, respectively. After graduation, he worked as a postdoctoral scholar at Caltech and UC Berkeley. He is currently an associate professor in the department of Mechanical Engineering at KAIST. His main research interests include metamaterials and micro/nanophotonics.

Coffee Break 10:00 to 10:30 am

10:30 to 11:15 am: Structured Light on the Nanoscale

Natalia M. Litchinitser, Univ. at Buffalo (United States)

Structured light and structured matter are two fascinating branches of modern optics that recently started having a significant impact on each other. The synergy of complex beams, such as the beams carrying an orbital angular momentum, with nanostructured engineered media is likely to bring new dimensions to the science and applications of structured light, ranging from fundamentally new regimes of spin-orbit interaction to novel ways of information encoding for the future optical communication systems. We will discuss fundamental optical phenomena at the interface of singular and nonlinear optics in engineered optical media and show that the unique optical properties of optical nanostructures open unlimited prospects to “engineer” light itself.

Natalia Litchinitser is currently a Professor of Electrical Engineering at University at Buffalo, The State University of New York and will be joining Electrical and Computer Engineering Department at Duke University in August 2018. Her group research focuses on fundamental properties and applications structured light in engineered nanostructures, biomedical imaging, optical communications and nonlinear optics. She is a Fellow of the Optical Society of America and of the American Physical Society.

11:15 am to 12:00 pm: Wave Control with "Time Materials"

Mathias Fink, Institut Langevin Ondes et Images (France)

Because time and space play a similar role in wave propagation, wave propagation is affected by spatial modulation or by time modulation of the refractive index. Here we emphasize the role of time modulation. We show that sudden changes of the medium properties generate instant wave sources that emerge instantaneously from the entire wavefield and can be used to control wavefield and to revisit the way to create time-reversed waves. Experimental demonstrations of this approach will be presented. More sophisticated time manipulations can also be studied and extension of these concepts in the field of plasmonics will be presented.

Mathias Fink is the George Charpak Professor at ESPCI Paris. He is member of the French Academy of Science. His area of research is concerned with the propagation of waves in complex media and the development of numerous instruments based on this basic research. 6 start-up companies with more than 300 employees have been created from his research (Echosens, Sensitive Object, Supersonic Imagine, Time Reversal Communications, Cardiawave and Greenerwave).
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