
Research in Photonics and Optical Technologies in Erlangen is amazingly diverse. The doctoral candidates of SAOT work in a multitude of research areas, gaining insight into many different fields of science and technology. Within our Publication Spotlights, this diversity shall be targeted and made visible to all those interested in cutting-edge photonic research performed by junior scientists. Thus, the latest publications of SAOT doctoral candidates are abstracted, including photos from the lab and links to detailed information.
Tracking down data pirates in quantum channels using localized sound waves

Our modern information society is highly dependent on secure communication channels. The idea of encryption is to hide the original…
That makes sens*ing: Sound waves in liquid-filled fibers unravel negative pressure

When characterizing hazardous materials such as toxic liquids, the less material you need for investigation, the better. This especially applies…
Sebastian-Paul Kopp: Custom-made 3D-printed medication

The research focus of Sebastian-Paul Kopp is laser-based 3D printing from polymer powders. As described earlier, he uses a technique…
Lisa Ackermann: Changing the color of a shaped laser beam

In several recent publications, Lisa Ackermann reported her progress on laser beam shaping using spatial light modulators (SLMs). Now she…
Johannes Vetter: Mixing materials to tweak their properties

Not all metal is the same. Copper is known to be an excellent heat conductor, but on the other side…
Sebastian-Paul Kopp: Advanced 3D printing with charged particles

Last year, Sebastian-Paul Kopp introduced a new technique for powder deposition in laser-based additive manufacturing of polymer structures. He transferred…
Markus Labus and Peter Lang: Imaging temperature fields in aerosols

Last year, Markus Labus and Peter Lang published on their new setup for optical temperature measurements in flames and aerosols.…
Lisa Ackermann: Smoothing laser patterns for materials processing

Last year, Lisa Ackermann already published on beam shaping of high-energy lasers for materials processing by using spatial light modulators…
Yogeshwar Nath Mishra & Florian Bauer: The world’s fastest 2D imaging of flames

A timeframe of 80 picoseconds is extremely short. In this interval, light rays – able to travel from the earth…
Jonas Bollmann: Improving the provision of hydrogen from LOHC fluids

As previously described, liquid organic hydrogen carrier (LOHC) fluids may play a major role in future energy storing, as they…
Jonas Bollmann: Optical access to temperature distributions in LOHC fluids

To safely store hydrogen as a future energy carrier, liquid organic hydrogen carrier (LOHC) systems are a highly promising option.…
Florian Bauer: Observing the growth of soot in flames

Last year, Florian Bauer published on his work on in-situ spectroscopy of soot formation. He continues his efforts in his…
Mena Michael: Mechanics of muscles on a cellular level

The elasticity and flexibility of a human muscle and its contractile properties depend on the presence of reactive oxygen species…
Bastian Lehnert: Optical tomography of transient fuel sprays

Bastian Lehnert works on the optimization of 3D imaging of transient fuel sprays. His measurement technique is called ‘diffuse back…
Dominic Bartels: Additive manufacturing of steel parts

Earlier this year, Dominic Bartels published his work on in-situ modification of case-hardening steel. He continues these efforts in his…
Alexander Wittmann: Directed energy deposition in thermoplastic polymers

Last year, Alexander Wittmann introduced a laser with a wavelength of 1.94 µm for the consolidation of thermoplastic polymer coatings…
Paul Ritter: Automated generation of reconstructive tissue scaffolds

A promising approach to reconstruct human muscle tissue after trauma, necrosis or tumor ablation is the use of cell-free muscle…
Paul Ritter: A deeper insight into muscular diseases

Duchenne Muscular Dystrophy, abbreviated as DMD, is a genetic muscular disease causing inflammations, reduced membrane stability and ongoing myatrophy. To…
Sebastian-Paul Kopp: Spatially resolved powder deposition for 3D printing

Sebastian-Paul Kopp works on a new technique for powder deposition in laser-based additive manufacturing. Similar to the principle of a…
Tim Russwurm: High-Speed Images from Inside an Engine

Last year, Tim Russwurm showed that “Flame Luminesce in an Optically Accessible Engine with an Active Fuelled Pre-Chamber Ignition System”…
Thomas Will: Feature detection for seam tracking

To monitor the material’s topography in laser machining, optical coherence tomography (OCT) is a promising imaging technique, which goes beyond…
Florian Kordon: Digital Support in Surgery Planning

In his latest publication, Florian Kordon presents a “Multi-Stage Platform for (Semi-)Automatic Planning in Reconstructive Orthopedic Surgery”. He developed a…
Rong Wang: A Pathway for Efficient Bilayer Photovoltaics

For her latest publication “Tailoring the Nature of Interface States in Efficient and Stable Bilayer Organic Solar Cells by a…
Simon Aßmann: Monitoring Spray Flame Synthesis

Spray flame synthesis is a powerful tool for the generation of functionalized nanoparticles, yet sophisticated measurement techniques are required to…
Dominic Bartels: Laser-Based Modification of Steel

Laser-based additive manufacturing enables the realization of steel-based products in sophisticated new shapes. Dominic Bartels published on the “In situ…
Manuel Kerscher: Characterizing Fluids using Laser Light

For the first time, Manuel Kerscher determined the “Viscosity and Surface Tension of Benzene at Saturation Conditions from Surface Light…
Maximilian Piszko: Characterizing Mixtures and Melts

Thermoplastic foams are used in a broad variety of applications. The resulting foam properties are governed by the nucleation and…
Marc-Oliver Pleinert: Validating Quantum Theory

Marc-Oliver Pleinert’s focus of research is the experimental validation of results emerging from quantum theory. By “Testing Higher-Order Quantum Interference…
Bernd Doll: Field Tests on Solar Cells

Photovoltaic energy generation will play a major role in the future of producing electric energy. “Outdoor photoluminescence of large area…
Moritz Späth: Improving Vessel Diagnostics

Microcirculation describes the circulation of blood in the smallest vessels. The publication of Moritz Späth deals with the “Determination of…
Stefan Richter: Locating Quantum Emitters

Recently, Stefan Richter published on “Imaging Trapped Ion Structures via Fluorescence Cross-Correlation Detection”. This highly sensitive technique yields structural information…
Karen Schwarzkopf: In-Situ Imaging of Additive Manufacturing

With her “Arrangement for the benchmarking of in-situ process monitoring of topographical process signatures within the Laser Powder Bed Fusion…
Rong Wang: Characterizing Organics with High Throughput

Rong Wang recently published on “Understanding the Microstructure Formation of Polymer Films by Spontaneous Solution Spreading Coating with a High-Throughput…
Chao Liu: Manipulating Organic Photovoltaic Materials

In her publication “Utilizing the unique charge extraction properties of antimony tin oxide nanoparticles for efficient and stable organic photovoltaics”,…
Albert These: Perovskites from Aerosols

Albert These worked on the “Characterization of Aerosol Deposited Cesium Lead Tribromide Perovskite Films on Interdigited ITO Electrodes”. He showed…
Alexander Wittmann: A New Laser for Additive Manufacturing

Recently, Alexander Wittmann published on the “Consolidation of thermoplastic coatings by means of a thulium-doped fiber laser”. He investigated the…
Alexander Sommereyns: Nano-Additives for Additive Manufacturing

With additive manufacturing, highly customized parts of high complexity and resolution can be fabricated. Mixing nanoparticles into the feedstock polymer…
Lisa Ackermann: High-Energy Beam Shaping

The recent publication of Lisa Ackermann deals with “Uniform and efficient beam shaping for high-energy lasers”. By setting two spatial…
Phillip Rall: Improving High-Power Laser Optics

Thermal lensing is an unwanted effect in optics used for high-power laser imaging. The high light intensity causes a heat…
Yakun He: Single-Component Organic Solar Cells

Yakun He successfully worked on “Unraveling the Charge-Carrier Dynamics from the Femtosecond to the Microsecond Time Scale in Double-Cable Polymer-Based…
Max Köppel and Jasper Podschus: Remote Temperature Sensing

In their latest publication “Doppler optical frequency domain reflectometry for remote fiber sensing”, Max Köppel and Jasper Podschus present a…
Markus Labus und Peter Lang: Flexible Aerosol Thermometry

In their recent publication, Markus Labus and Peter Lang present “A versatile fibre-based setup for two-line atomic fluorescence thermometry in…
Florian Kordon: Deep Learning for Knee Surgeries

The conference paper “Automatic Path Planning for Safe Guide Pin Insertion in PCL Reconstruction Surgery” by Florian Kordon presents a…
Florian Bauer: In-Situ Spectroscopy of Soot Formation

Even nowadays, in the age of growing electromobility, the understanding of soot formation in combustion processes will remain import for…
Pablo Dilger: Assessing Laser Welding

For his conference contribution “Determination of the beam position in laser deep penetration welding using coaxially acquired images of the…