Berlin 2024 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 14: Plasmonics and Nanooptics II: Light-Matter Interaction and Spectroscopy
O 14.2: Vortrag
Montag, 18. März 2024, 15:15–15:30, MA 042
Soliton Formation Dynamics in a Microresonator Probed by Electron Energy Gain Spectroscopy — •F. Jasmin Kappert1, Yujia Yang2, Jan-Wilke Henke1, Arslan S. Raja2, Germaine Arend1, Guanhao Huang2, Armin Feist1, Zheru Qiu2, Rui Ning Wang2, Aleksandr Tusnin2, Alexey Tikan2, Tobias J. Kippenberg2, and Claus Ropers1 — 1Max Planck Institute for Multidisciplinary Sciences, Göttingen,Germany — 2Institute of Physics, Swiss Federal Institute of TechnologyLausanne (EPFL), Switzerland
Ultrafast electron microscopes provide a powerful platform for investigating confined optical modes with high temporal and spatial resolution. Recently, integrated photonics has boosted the interaction strength of light with free electrons, enabling nanoscale spectroscopy of optical states with a continuous electron beam.
Here, we use continuous-beam electron energy gain spectroscopy (EEGS) to probe nonlinear optical excitations inside a microresonator [1]. Starting from single-color excitation, increasing the optical input power leads to the formation of dissipative Kerr solitons via various nonlinear comb states, evident in characteristic optical and EEG spectra. This scheme enables non-invasive probing of nonlinear optical dynamics with direct access to the intracavity field. Moreover, the interaction with solitons facilitates high-frequency spatiotemporal electron beam modulation.
[1] Y. Yang, et al., arXiv:2307.12142 (2023)
Keywords: solitons; nonlinear optics; electron microscopy; nanooptics; integrated photonics