Quantum Dynamics
We are exploring fluctuations of individual nanosystems (single atoms, molecules or clusters at surfaces) locally coupled to an electromagnetic field inside a nanocavity. The scenario is advantageously realized inside the tunnel junction of a scanning tunneling microscope (STM). Electromagnetic pulses can be fed into the tunnel junction from external light sources and local electromagnetic fields can be monitored by external time-resolving single photon detectors. By this complementary experimental approach, we can address atomic scale dynamics spanning 15 orders of magnitude in the time domain from femtoseconds to seconds. The scanning capability of the STM with resolution and stability on the pico-meter scale provides an excellent tool to locally map electronic properties thus addressing the spatial extension of fluctuations far below the optical resolution limit. The method moreover provides a local concentration and enhancement of the electromagnetic field below the sharp STM tip.
Responsible Scientists
Dr. Manish Garg
Dr. Klaus Kuhnke
Dr. Anna Roslawska
Team Members
Thiago Brito, Dr. Yang Luo, Dr. Shaoxiang Sheng
Key Publications
Yang Luo, Alberto Martin-Jimenez, Michele Pisarra, Fernando Martin, Manish Garg, and Klaus Kern
Imaging and controlling coherent phonon wave packets in single graphene nanoribbons
Nature Communications volume 14, Article number: 3484 (2023)
Article
M. Garg, A. Martin-Jimenez, M. Pisarra, Y. Luo, F. Martín, and K. Kern
Real-space subfemtosecond imaging of quantum electronic coherences in molecules
Nature Photonics (2021)
Article
Manish Garg, Alberto Martin-Jimenez, Yang Luo, and Klaus Kern
Ultrafast Photon-Induced Tunneling Microscopy
ACS Nano (2021)
Article
Anna Rosławska, Christopher C. Leon, Abhishek Grewal, Pablo Merino, Klaus Kuhnke, and Klaus Kern
Atomic scale dynamics probed by photon correlations
ACS Nano 14, 6366 (2020)
Article
M. Garg and K. Kern
Attosecond coherent manipulation of electrons in tunneling microscopy
Science 367, 411-415 (2020)
Article
Christopher Leon, Anna Rosławska, Abhishek Grewal, Olle Gunnarsson, Klaus Kuhnke, and Klaus Kern
Photon super-bunching from a generic tunnel junction
Sci. Adv. 5, eaav4986 (2019)
Article
P. Merino, A. Rosławska, C.C. Leon, C. Große, C. González, K. Kuhnke, K. Kern
A single hydrogen molecule as an intensity chopper in an electrically driven plasmonic nanocavity
Nano Lett. 19, 235 (2019)
Article
A. Rosławska, P. Merino, C. Große, C.C. Leon, O. Gunnarsson, M. Etzkorn, K. Kuhnke, and K. Kern
Single Charge and Exciton Dynamics Probed by Molecular-Scale-Induced Electroluminnescence
Nano Lett. 18, 4001 (2018)
Article
P. Merino, C. Große, A. Roslawska, K. Kuhnke, and K. Kern
Exciton dynamics of C60-based single-photon emitters explored by Hanbury Brown-Twiss scanning tunneling microscopy
Nature Commun. 6, 8461 (2015)
Article