Experimental Research Groups

Our experimental research groups and links to some of their recent research results.

Itzik Ben-Itzhak's Group

Itzik's group studies ionization and dissociation of molecules in intense laser fields.

Dissociation dynamics of molecular ions in ultrafast, intense laser fields: from diatomic to polyatomic molecules
PhD disseration of Bethany Jochim.
Initial-site characterization of hydrogen migration following strong-field double-ionization of ethanol
Travis Severt, Eleanor Weckwerth, Balram Kaderiya, Peyman Feizollah, Bethany Jochim, Kurtis Borne, Farzaneh Ziaee, Kanaka Raju P, Kevin D. Carnes, Marcos Dantus, Daniel Rolles, Artem Rudenko, Eric Wells, Itzik Ben-Itzhak
Nat. Commun. 15, 74 (2024)

Cosmin Blaga's Group

Cosmin's group seeks to understand the interaction of matter with intense, ultrafast laser pulses and to develop applications and novel technologies based on that science.

Ionization of magnesium atoms in femtosecond 400-nm laser fields
Jie Zhou, Bradford K. Talbert, Yu Hang Lai, Sha Li, Cosmin I. Blaga, Pierre Agostini, Xu Wang, Louis F. DiMauro
Phys. Rev. A 105, 063112 (2022)
Clocking Auger electrons
D. C. Haynes, C. Blaga, et al
Nat. Phys. 17, 512 (2021)

Brett DePaola's Group

Brett's group is using atoms in a magneto-optical trap (MOT) as the ultimate cold target for ion-atom collision studies. More recently Brett has taken up Brian Washburn's laser metrology students.

Interaction of a Finite Train of Short Optical Pulses with a Ladder System
The PhD dissertation of Hyounguk Jang.
Precise multispecies agricultural gas flux determined using broadband open-path dual-comb spectroscopy
Daniel I. Herman, Chinthaka Weerasekara, Lindsay C. Hutcherson, Fabrizio R. Giorgetta, Kevin C. Cossel, Eleanor M. Waxman, Gabriel M. Colacion, Nathan R. Newbury, Stephen M. Welch, Brett D. DePaola, Ian Coddington, Eduardo A. Santos, Brian R. Washburn
Science Advances 7, eabe9765 (2021)

Meng Han's Group

Meng focuses on the generation, characterization and applications of attosecond light pulses, particularly in circular polarization, which has unique advantages in real-time resolving electron dynamics in chiral molecules and magnetic materials.

Separation of photoionization and measurement-induced delays
Meng Han, Jia- Bao Ji, Chung Sum Leung, Kiyoshi Ueda, Hans Jakob Wörner
Sci. Adv. 10, eadj2629 (2024)
Attosecond-resolved non-dipole photoionization dynamics
Jintai Liang, Meng Han, Yijie Liao, Jia-bao Ji, Chung Sum Leung, Wei-Chao Jiang, Kiyoshi Ueda, Yueming Zhou, Peixiang Lu, Hans Jakob Wörner
Nat. Photon. 18, online (2024)

Vinod Kumarappan's Group

Vinod's group is studying ultrafast processes in strong laser field aligned molecules.

Laser-induced rotational dynamics as a route to molecular frame measurements
PhD dissertation of Varun Makhija.
Differentiating Three-Dimensional Molecular Structures Using Laser-Induced Coulomb Explosion Imaging
Huynh Van Sa Lam, Anbu Selvam Venkatachalam, Surjendu Bhattacharyya, Keyu Chen, Kurtis Borne, Enliang Wang, Rebecca Boll, Till Jahnke, Vinod Kumarappan, Artem Rudenko, Daniel Rolles
Phys. Rev. Lett. 132, 123201 (2024)

Daniel Rolles' Group

Daniel is interested in ultrafast dynamics, working with FELs and collaborating with Artem Rudenko. His most recent papers appear below.

Monitoring the Evolution of Relative Product Populations at Early Times during a Photochemical Reaction
Joao Pedro Figueira Nunes, Shashank Pathak, Surjendu Bhattacharyya, Kurtis Borne, Artem Rudenko, Sajib Kumar Saha, Anbu Selvam Venkatachalam, Daniel Rolles, et al.
J. Am. Chem. Soc. 146, 4134 (2024)
Experimental demonstration of attosecond pump-probe spectroscopy with an X-ray free-electron laser
Zhaoheng Guo, Daniel Rolles, Artem Rudenko, et al
Nat. Photon. 18, online (2024)

Artem Rudenko's Group

Artem explores interaction of intense and short-pulsed radiation with matter. Artem closely collaborates with Daniel Rolles.

Molecular response to ultra-intense x-rays studied with ion and electron momentum imaging
PhD dissertation of Xiang Li.
The Ring-Closing Reaction of Cyclopentadiene Probed with Ultrafast X-ray Scattering
Lisa Huang, Zane Phelps, Artem Rudenko, Daniel Rolles, et al.
J. Phys. Chem. A 128, 4992 (2024)

Experiment Groups