Nathan Lemke

Job Title


Dr. Lemke received bachelors degrees in physics and applied physics from Bethel University and his Ph.D. in physics from the University of Colorado-Boulder. After postdocs at PTB (Germany) and the Argonne National Laboratory (Illinois), he was a staff scientist with the Air Force Research Laboratory in New Mexico. There he designed and developed a portable atomic clock as well as methods for laser time transfer. He has authored over 30 papers and holds provisional patents for his work with the Air Force. His research has been recognized with AFRL team and individual awards as well as the Director's Postdoctoral Fellowship at Argonne National Laboratory. At Bethel, Dr. Lemke leads the "AMO" lab (atomic, molecular, and optical physics) where he works with students to study laser cooling of atoms, applications of ultrafast lasers, and "quantum engineering" of advanced sensors and clocks that are based on quantum physics.

Started at Bethel



  • Bethel University - B.S., 2006
  • University of Colorado-Boulder - Ph.D., 2012