SAMOP 2021 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 2: Nano-Optics and Optomechanics
Q 2.7: Poster
Montag, 20. September 2021, 16:30–18:30, P
High-resolution spectroscopy and nanoscale mode mapping of photonic microresonators in a transmission electron microscope — Jan-Wilke Henke1,2, Arslan Sajid Raja3, Armin Feist1,2, Guanhao Huang3, Germaine Arend1,2, Yujia Yang3, •F. Jasmin Kappert1,2, Rui Ning Wang3, Marcel Möller1,2, Jiahe Pan3, Junqiu Liu3, Ofer Kfir1,2,4, Tobias J. Kippenberg3, and Claus Ropers1,2 — 1Georg-August-Universität, Göttingen, Germany — 2Max Planck Institute for Biophysical Chemistry, Göttingen, Germany — 3Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland — 4School of Electrical Engineering, Tel-Aviv University, Tel-Aviv, Israel
Ultrafast electron microscopes are a powerful platform for investigating nano photonic devices, as they provide direct access to optical near-fields in photon-induced near-field electron microscopy (PINEM).
In this work, we demonstrate for the first time the spatial and spectral characterization of a single optical mode in a photonic-chip-based high-Q microresonator by electron microscopy. We map the evanescent cavity field with nanometer spatial and µeV energy resolution by laser-frequency-tuned electron energy-gain spectroscopy [1].
Future studies will explore the application of various nonlinear effects in integrated photonics for temporal and spectral electron-beam control, including dissipative Kerr solitons.
[1] J.-W. Henke, A. S. Raja, et al., preprint, arXiv:2105.03729 (2021)