Light-matter interaction at atomic scale
by
TDLI Meeting Room N600 (East Wing of Floor 6, North Building)
Recent state of-the-art experimental and theoretical studies showed that plasmonic fields can be confined to a few nanometers and even down to atomic scale. Now, sophisticated experiments combining scanning tunneling microscopy with local optical detection and excitation (LT-photon-STM) allow us to perform optical spectromicroscopy with unprecedented spatial resolution.
In this talk, I will introduce the development of our home-built LT-photon-STM and discuss our recent studies on near-field physics in the plasmonic STM junction [1, 2, 3, 4], as well as tip enhanced Raman spectroscopy [5, 6, 7, 8] and near atomic scale coherent phonon spectroscopy [9].
1. S. Liu et al. Phys. Rev. Lett. 121, 226802 (2018).
2. H. Böckmann#, S. Liu# et al. Nano Lett. 19, 3597 (2019).
3. S. Liu et al. ACS Photonics, 8 (9), 2610-2617 (2021).
4. S. Liu#, F. P. Bonafe#, et al., ACS Nano 17, 11, 10172–10180 (2023).
5. S. Liu et al. Nano Lett. 19, 5725 (2019).
6. S. Liu et al. Nano Lett. 20, 5879 (2020).
7. S. Liu et al. Nano Lett., 21, 9, 4057–4061 (2021).
8. S. Liu et al. Phys. Rev. Lett. 128 (20), 206803 (2022).
9. S. Liu et al. Science Advances 8, eabq5682 (2022).
Dr. Shuyi Liu focused on studying light matter interaction and ultrafast dynamics at atomic scale by scanning probe microscopy. He obtained his doctoral degree in physics in 2019 at Fritz-Haber Institute of the Max-Planck Society, Germany. After his doctoral study, he worked as a postdoc researcher at the same group for almost three years. Then, he moved to Japan and worked as a foreign research fellow for one year in the Institute for Molecular Science. He joined Huazhong University of Science and Technology from June of 2023 as a professor.
Tencent Meeting link: https://meeting.tencent.com/dm/lXnQTajJrprf
Meeting ID: 961 606 523, no password
