Experimental facility for the spectroscopic analysis of ultra-thin 2D materials.

LICHTGEDANKEN 09

The Research Magazine
Experimental facility for the spectroscopic analysis of ultra-thin 2D materials.
Image: Jens Meyer (University of Jena)

Feature: »The glow of atoms​«

Nonlinear optics is a man-made branch of physics: If we hadn’t developed high-performance lasers, we wouldn’t be able to gather enough protons to combine with electrons and form collective oscillations; and if we didn’t have the intensity of femtosecond laser pulses, we would barely be able to generate light waves with a field strength high enough to make the matter itself glow, to change the colour of light and to stimulate high harmonic oscillations through interactions with charge carriers. Teams of researchers from the University of Jena are investigating these interactions between light and matter at a collaborative research centre known as "Nonlinear Optics down to Atomic Scales". They are particularly interested in finding out what happens when intense laser light hits individual atoms and tiny nanostructures, thus opening a new window into the nanoworld.

Editorial

Here we can see a silver-plated silicon tip used to scan surfaces and materials. The metal tip significantly increases the sensitivity of Raman spectroscopy.
No light without matter
What is nonlinear optics anyway?
Replica of the first gas laser in Germany from 1962.
The oldest discipline in physics
Milestones in nonlinear optics​
Prof. Dr Ulf Peschel and Prof. Dr Stefanie Gräfe are spokespersons for the SFB "NOA".
Physical limits aren’t the end of the road
Why scientific knowledge needs a theoretical foundation
Prof. Dr Isabelle Staude (r.) and physics doctoral candidate Tobias Bucher develop optical antennas.
Ultra-thin: semiconductors made of one atomic layer
2D materials with nanoscale optical antennas​ are tailored
Prof. Dr Carsten Ronning at an experimental set-up for photoluminescence spectroscopy.
When light and electrons shine together
›​Spasers‹​: the smallest lasers in the world
Dr Daniil Kartashov (left) and Dr Maria Wächtler are working with nonlinear optical methods.
Stroboscopic imaging of ultrafast dynamics in nanomaterials
Extremely fast processes in tiny semiconductors
The team conducts the experiments with structures that are etched into nanometre-thin gold surfaces.
Chemical reaction close-ups
Non-linear effects can enhance spectroscopic signals
Prof. Dr Thomas Pertsch examines nanostructured surfaces under a near-field microscope.
Top-level research with nanolight
Thin metal tips and optical fibres analyse finest structures
Prof. Dr. Andreas Tünnermann.
Jena on its way to the Quantum Valley
City and region take up position in quantum technology
Dr Frederik Tuitje (right) and Tobias Helk are preparing the laser plasma source for experiments.
Optical harmonics
Exploring plasmas with high harmonic oscillations
Prof. Dr Gerhard Paulus, doctoral candidate Felix Wiesner and Dr Silvio Fuchs in a laser laboratory.
A closer look inside semiconductors
Short-wave UV light shines through materials non-destructively
Prof. Dr Silvana Botti and doctoral candidate Jens Renè Suckert are members of the research team.
Physics World: Breakthrough of the Year
How a research team from Jena is paving the way for silicon lasers

Further topics

An Adélie penguin jumps off an ice floe while his comrades look on.
Hunger encourages risk-taking
Animals that suffer from hunger at an early age run higher risks later in life. This is the result of a meta-study by a research team from the universities of Bielefeld and Jena.
Aerial acrobatics: Prof. Dr Oliver Werz in the climbing hall.
Portrait
The dreaming realist
Dr Oliver Forstner in front of the »Globe of Science and Innovation« at CERN.
Behind the scenes
Insights into the work at the CERN research facility
The Corona pandemic impacts teaching and research at the University of Jena.
Exchange of views
How has COVID changed the scientific landscape?

Videos

Screenshot aus dem Video "LICHTGEDANKEN 09: Was ist nichtlineare Optik?".
Videos
Videos about nonlinear optics and dust out of space
Notice

Articles identified by name do not have to correspond with the views of the publisher and the editorial team. The signatories are responsible for the content. For better readability, we have sometimes only used the masculine language form in the articles. However, all genders are equally addressed with the chosen phrases.

Download the current issue of LICHTGEDANKEN as a pdf here [pdf, 6 mb].

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