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Nontrivial Topology Induced by Dynamic Modulations: From Gauge Potential to Synthetic Space
In recent years, there has been an emerging interest in exploring the concepts of synthetic dimension in photonics. These concepts enable one to explore physics in high-dimensional geometries using lower-dimensional physical structures. Since topology is intimately connected with the dimensionality of space, the concept of synthetic dimension is particularly attractive for demonstrating topological physics.

In this webinar hosted by the OSA Integrated Photonics Technical Group, Dr. Shanhui Fan of Stanford University Here will show that photonic systems provide particularly versatile mechanisms for realizing the concept of synthetic dimension. As a platform, we consider a ring resonator undergoing refractive index modulation, and exploit the modes of the ring resonator to form a synthetic lattice. In such a ring resonator, the phase of the modulation provides a gauge potential, allowing complex topological effects to be demonstrated. As examples of experimental demonstration, this webinar will present our recent works in measuring photonic band structures, and in demonstrating a quantum Hall ladder for photons, all in the synthetic dimensions.

What You Will Learn:
• Attendees will get an overview of topological photonics, which is a rapidly emerging topic, and will learn about recent theoretical and experiment work on the subject.

Who Should Attend:
• The webinar will be appropriate for various levels of expertise.

Feb 11, 2020 01:00 PM in Eastern Time (US and Canada)

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