A person with long hair tied back, wearing glasses and a plaid shirt, smiles warmly against a dark, textured background.

Todd Johnson

Associate Professor
Education
  • Ph.D., University of Wisconsin – Madison (2008)
  • B.A., Gustavus Adolphus College (2002)
  • Post-doctoral research at the National Institute of Standards and Technology (NIST), Boulder, CO
Research Areas of Interest

Mid-infrared light sources and spectroscopy, frequency comb lasers, ultracold atoms.

Select Publications

F. C. Cruz, D. L. Maser, T. Johnson, G. Ycas, A. Klose, F. R. Giorgetta, I. Coddington, and S. A. Diddams, “Mid-infrared optical frequency combs based on difference frequency generation for molecular spectroscopy,” Opt. Express 23, 26814 (2015).

T. A. Johnson and S. A. Diddams, “Mid-infrared upconversion spectroscopy based on a Yb:fiber femtosecond laser,” Appl. Phys. B 107, 31 (2012).

E. Urban, T. A. Johnson, T. Henage, L. Isenhower, D. D. Yavuz, T. G. Walker, and M. Saffman, “Observation of Rydberg blockade between two atoms,” Nat. Phys. 5, 110 (2009).

T. A. Johnson, E. Urban, T. Henage, L. Isenhower, D. D. Yavuz, T. G. Walker, and M. Saffman, “Rabi Oscillations between Ground and Rydberg States with Dipole-Dipole Atomic Interactions,” Phys. Rev. Lett. 100, 113003 (2008).