Principle Investigator

Prof. Andrej Singer – 

Assistant Professor, David Croll Sesquicentennial Faculty Fellow

Andrej Singer received his Ph.D. (2012) in Physics from the University of Hamburg, Germany in the lab of Prof. Edgar Weckert and Prof. Ivan Vartanyants, following a Physics diploma from the University of Muenster, Germany. He studied the properties of new x-ray sources, particularly their ability to generate interference patterns, similar to lasers in optics. He then worked as a Postdoc in the lab of Prof. Oleg Shpyrko at the University of California, San Diego. Dr Singer’s group uses coherent x-ray scattering techniques at synchrotrons and free-electron lasers to study a wide range of materials, spanning from quantum materials to applied energy materials in operando devices. Dr. Singer is interested in understanding the fundamental properties of energy materials and quantum materials out-of-equilibrium.

Go to: Postdoctoral Fellows    Graduate Students    Undergraduate Students    Alumni


Postdoctoral Fellows

Oleg Gorobtsov –

Oleg received an M.S. in Physics from Moscow Institute of Physics and Technology, and then a Ph.D. in Physics from DESY and Hamburg University. He is working on free electron laser science, coherent imaging of battery materials and mesocrystals.

Anita Verma –

Jakob Gollwitzer –

Jakob received an M.S. and a Ph.D. in Physics from Hamburg University. He is currently working on using diffraction to investigate magnetostrictive effects in superconductors.


Graduate Students

Ryan Bouck –

Ryan got a B.S. in 2016 in Mechanical Engineering from Union College. His research focuses on in operando Bragg Coherent Diffractive Imaging on sodium ion batteries.

Daniel Weinstock –

Dan received his B.S. in 2017 from Lehigh University in Materials Science and Engineering, with a minor in Polymer Science and Engineering. His current research is on in operando single-nanoparticle spectroscopy of sodium ion batteries.

Ziming Shao –


Aileen Luo –

Aileen received her B.S. in Materials Science and Engineering from UC Berkeley in 2019. Her current research focuses on nano-diffraction imaging of thin films catalyst materials for alkaline-based fuel cells.

Jason Huang –

Jason received his B.S. in Nanoengineering from the University of California, San Diego in 2019. His current research is focused on in situ and in operando x-ray studies of sodium ion batteries.

Yifei Sun –

Stephanie Matson –

Stephanie was recently accepted into the Master’s of Science program in Cornell’s Materials Science Engineering department, with an anticipated graduation of Fall ’21. A former treasurer for Cornell’s Materials Society, she helped to organize two trips to the MRS conference, and took one trip to Argonne National labs with the Singer lab, to help with experiments. She joined Singer lab in Fall ’19 for her senior thesis, which was done by tracking center of mass and peak width changes of sodium-ion batteries charged in operando, and she used 3D synchrotron x-rays to measure distortion in the cathode’s crystal lattice.



Undergraduate Students

Jiaruo Li –

Jiaruo is a junior undergraduate students majoring in physics and math. She studies the emergence of order through symmetry breaking, in particular, the recovery of charge density wave in Cr in ultrafast pump-probe experiments.



Wenxuan Qiu – MS
Ziyi Wang – MS (Now a PhD student at Caltech)
Raghav Kumar – Undergraduate
Patrick Ding – Undergraduate
Malia Okamura – Summer REU