Title: Complex Frequency Excitations in Classical and Quantum Photonics

Abstract: Complex frequency (CF) signals introduce a new paradigm in wave physics, offering a powerful approach to uncovering hidden poles and resonances in both classical and quantum photonic systems. These signals reveal phenomena invisible to conventional methods, paving the way for breakthroughs in light scattering, quantum circuits, and optical communication. In this talk, I will explore the theoretical foundations of CF excitations and demonstrate their transformative impact on photonics and quantum circuits. This presentation offers insights into the future of photonics through the lens of complex frequency effects.

1. D. Trivedi, A. Madanayake, A. Krasnok, Revealing Invisible Scattering Poles via Complex Frequency Excitations. arXiv Prepr. arXiv:2408 (2024).

2. D. Trivedi, A. Madanayake, A. Krasnok, Anomalies in Light Scattering: A Circuit Model Approach. Phys. Rev. Appl. in press (2024).

3. T. Delage, J. Sokoloff, O. Pascal, V. Mazières, A. Krasnok, T. Callegari, Plasma Ignition via High-Power Virtual Perfect Absorption. ACS Photonics 10, 3781–3788 (2023).

4. S. Lepeshov, A. Krasnok, Virtual optical pulling force. Optica 7, 1024 (2020).

5. A. Krasnok, D. Baranov, H. Li, M.-A. Miri, F. Monticone, A. Alú, Anomalies in light scattering. Adv. Opt. Photonics 11, 892 (2019).

About The Speaker: Dr. Aleksandr (Alex) Krasnok is an Assistant Professor in the Department of Electrical and Computer Engineering at Florida International University. He earned his Ph.D. in Photonics from ITMO University and completed postdoctoral research at the University of Texas at Austin. Prior to joining FIU, he served as a Research Assistant Professor and the Founding Director of the Photonics Core Facility at the Advanced Science Research Center (ASRC) at CUNY. Dr. Krasnok's work in quantum technology, photonics, and complex frequency excitations has earned him awards such as the Early-Career Award in Nanophotonics (2021) and the Leopold B. Felsen Award for Excellence in Electrodynamics (2024). He leads innovative research in quantum engineering at FIU, supported by funding from the Department of Energy and the National Science Foundation.