Publications de Christoph Grosse

A Single Hydrogen Molecule as an Intensity Chopper in an Electrically Driven Plasmonic Nanocavity

Klaus Kern, Christoph Grosse, Anna Maria Roslawska, Abhishek Grewal

Photon statistics is a powerful tool for characterizing the emission dynamics of nanoscopic systems and their photophysics. Recent advances that combine correlation spectroscopy with scanning tunneling microscopy induced luminescence (STML) have allowed th ...

AMER CHEMICAL SOC2019

Bimodal exciton-plasmon light sources controlled by local charge carrier injection

Klaus Kern, Christoph Grosse, Anna Maria Roslawska

Electrical charges can generate photon emission in nanoscale quantum systems by two independent mechanisms. First, radiative recombination of pairs of oppositely charged carriers generates sharp excitonic lines. Second, coupling between currents and collec ...

AMER ASSOC ADVANCEMENT SCIENCE2018

Single Charge and Exciton Dynamics Probed by Molecular-Scale-Induced Electroluminescence

Klaus Kern, Markus Etzkorn, Christoph Grosse, Anna Maria Roslawska

American Chemical Society (ACS)2018

Exciton dynamics of C-60-based single-photon emitters explored by Hanbury Brown-Twiss scanning tunnelling microscopy

Klaus Kern, Christoph Grosse, Anna Maria Roslawska

Exciton creation and annihilation by charges are crucial processes for technologies relying on charge-exciton-photon conversion. Improvement of organic light sources or dye-sensitized solar cells requires methods to address exciton dynamics at the molecula ...

Nature Publishing Group2015

Monitoring Charge Carrier Dynamics at Atomic Length Scales by STM-induced Luminescence

Christoph Grosse

The goal of this thesis is the combination of the high spatial resolution of scanning tunneling microscopy (STM) with the high temporal resolution of optical spectroscopy, by monitoring the light emitted from the tunnel junction. Two complementary techniqu ...

EPFL2015

Dynamic Control of Plasmon Generation by an Individual Quantum System

Klaus Kern, Markus Etzkorn, Uta Schlickum, Romain Froidevaux, Alexander Kabakchiev, Theresa Lutz, Christoph Grosse

Controlling light on the nanoscale in a similar way as electric currents has the potential to revolutionize the exchange and processing of information. Although light can be guided on this scale by coupling it to plasmons, that is, collective electron osci ...

Amer Chemical Soc2014

Quantitative mapping of fast voltage pulses in tunnel junctions by plasmonic luminescence

Klaus Kern, Markus Etzkorn, Christoph Grosse

An optical read-out technique is demonstrated that enables mapping the time-dependent electrostatic potential in the tunnel junction of a scanning tunneling microscope with millivolt and nanosecond accuracy. We measure the time-dependent intensity of plasm ...

Amer Inst Physics2013

Molecular Orbital Gates for Plasmon Excitation

Klaus Kern, Uta Schlickum, Alexander Kabakchiev, Theresa Lutz, Christian Alexander Stephan Dette, Christoph Grosse

Future combinations of plasmonics with nanometer-size electronic circuits require strategies to control the electrical excitation of plasmons at the length scale of individual molecules. A unique tool to study the electrical plasmon excitation with ultimat ...

Amer Chemical Soc2013