Network­ing and inter­dis­ci­pli­nary knowl­edge transfer
Alumni projects

Completed projects

The Hector Fellow Academy has created a dynamic network for its alumni in order to maintain the dialogue between outstand­ing scien­tists beyond the project period. The regular exchange and trans­fer of research results as well as the oppor­tu­nity for long-term inter­dis­ci­pli­nary cooper­a­tion makes the HFA a vital academy of science. We are pleased that the follow­ing projects have been success­fully completed.

Associated Fellows-Projekte

Completed inter­dis­ci­pli­nary projects

High-resolu­­tion optoge­net­ics with organic light-emitting diodes (OLEDs)

Giuseppe Ciccone – Hector Fellow Karl Leo
Rodrigo Fernan­dez Lahore – Hector Fellow Peter Hegemann

In this project, the appli­ca­tion of organic light-emitting diodes (OLEDs) in optoge­net­ics will be inves­ti­gated. Several new techno­log­i­cal approaches will be addressed to achieve optoge­netic activa­tion and inhibi­tion of neurons with previ­ously impos­si­ble lateral resolu­tion. For this purpose, a new OLED technol­ogy is to be used, which can imitate electri­cally switch­able differ­ent colours.


© Anatoly — Adobe Stock

Completed doctoral projects

Appli­ca­tions of Non-Invasive Ocular Signal Measurements

Margaret Deibel – Hector Fellow Eberhart Zrenner

Several goals were pursued in the devel­op­ment of this work, includ­ing the devel­op­ment of a novel in vivo method to measure the ciliary muscle of a human subject non-invasively during accom­mo­da­tion, the charac­ter­i­za­tion of the recorded muscle signals based on the accom­moda­tive abili­ties of the subject, and the devel­op­ment of a device that would utilize the recorded muscle signals to mimic the appro­pri­ate level of accom­mo­da­tion for the user, actuated through the use of a variable refrac­tive lens.


© Margaret Deibel

Contin­uum Damage Models for Relia­bil­ity Assess­ment of Struc­tural Composites

Zalikha Murni Abdul Hamid – Hector Fellow Peter Gumbsch

The market’s demand for carbon fiber/epoxy compos­ite has dramat­i­cally increased due to its signif­i­cant appli­ca­tions and advan­tages in indus­try. Typical loading on the struc­tures that are made up by this mater­ial often involves tensile and lateral bending of the compos­ite laminates.


Continuum Damage Models for Reliability Assessment of Structural Composites© Fraun­hofer

Magnet­ism in Perovskite Mangan­ites and Cobaltites at the Nano Scale

Cornelia E. Hintze – Hector Fellow Hilbert von Löhneysen

The exact position of atoms in the crystal struc­ture of lanthanum mangan­ites and cobal­tates (both anorganic ionic compounds) signif­i­cantly affects their magnetic proper­ties. The crystal struc­ture of these materi­als can be altered by pressure, substi­tu­tion of elements, or crystal­lite size: Since nanopar­ti­cles have a large surface-to-volume ratio, their surface has a dominant effect on the crystal struc­ture, leading to changes compared to bulk materials.


© Cornelia E. Hintze

Three-dimen­­sional Chiral Metamaterials

Julian Köpfler – Hector Fellow Martin Wegener

Metama­te­ri­als are ratio­nally designed struc­tures exhibit­ing effec­tive macro­scopic mater­ial proper­ties that go beyond those of ordinary materi­als. For instance, by intro­duc­ing so-called topolog­i­cally protected resonances it is possi­ble to locally enhance mechan­i­cal vibra­tions and make them robust against pertur­ba­tions. In this project, chiral metama­te­ri­als with topolog­i­cally protected resonances are designed and fabri­cated to realize a resonant mechan­i­cal laser-beam scanner (see Figure). Such laser-beam scanners are crucial for various appli­ca­tions such as LIDAR, confo­cal microscopy, projec­tor displays, and mater­ial processing.


Dreidimensionale Chirale Metamaterialien© Julian Köpfler

Fermi­onic Quantum Gas Microscope

Joannis Koepsell – Hector Fellow Immanuel Bloch

A rich variety of phenom­ena in solid state systems such as quantum magnet­ism or high temper­a­ture super­con­duc­tiv­ity still pose open questions on parts of their micro­scopic expla­na­tion. Due to the complex­ity of these systems, the under­ly­ing quantum many-body dynam­ics is often not acces­si­ble to compu­ta­tional simulation.


Alumni - Abgeschlossene Projekte© Joannis Koepsell

Influ­ence of River Basin Morphol­ogy and Climate Change on Water Parti­tion­ing in Semi-Arid River Basins

Phoebe Pauline Onjira — Hector Fellow Franz Nestmann

Increased anthro­pogenic activ­i­ties and climate change are causing a global shift in patterns of water fluxes. Semi-arid river basins are charac­ter­ized by more water stresses, extreme and sporadic climatic events, and have been projected to worsen in many regions under the influ­ence of climate change.


© Phoebe Pauline Onjira

RR Lyrae stars as tracers of substruc­ture and Galac­tic archaeology

Zdenek Prudil — Hector Fellow Eva Grebel

Galac­tic archae­ol­ogy uses stars as fossils to study the evolu­tion­ary history of galax­ies like our own Milky Way. Cosmo­log­i­cal simula­tions suggest that larger galax­ies were partially formed by accret­ing smaller dwarf galax­ies. Such merger events should leave observ­able signa­tures in the form of star streams, but empir­i­cal constraints on the times, numbers, and impor­tance of such mergers are still missing.


RR Lyrae stars as tracers of substructure and Galactic archaeology© Zdenek Prudil

Towards Topolog­i­cal Many-Body Physics Using State-Depen­­dent Optical Lattices

Hendrik von Raven – Hector Fellow Immanuel Bloch

In modern condensed matter physics topol­ogy plays a funda­men­tal role in the classi­fi­ca­tion of phases of matter. A promi­nent example is the quantum Hall effect discov­ered in two-dimen­sional electron gases under extreme condi­tions. Quantum Hall insula­tors are isolat­ing in the bulk, but exhibit conduct­ing edge states, which results in a quantised Hall conductance.


Towards Topological Many-Body Physics Using State-Dependent Optical Lattices© Hendrik von Raven

Accom­mo­da­tion Behav­ior and Ciliary Muscle Activ­ity in Myopia

Sandra Wagner – Hector Fellow Eberhart Zrenner

Preva­lence of myopia (short­sight­ed­ness) increases consid­er­ably in indus­tri­al­ized countries. The mecha­nisms behind this devel­op­ment need to be fully under­stood in order to arrive at preven­tion. The aim of Sandra Wagner’s research was to allow a better under­stand­ing of accom­mo­da­tion, address unanswered question regard­ing myopia onset and support the devel­op­ment of new devices.


© Sandra Wagner

Completed Associ­ated Young Researchers Projects