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Dr. Allison Harris

University Professor
Physics
  • About
  • Education
  • Awards & Honors
  • Research

Biography

Dr. Harris has 3 main areas of research: Computational and Experimental Neuroscience, Atomic Collisions, and Ultrafast Physics. Please see her website for more information.

Current Courses

PHY 390.015 Computational Research In Physics

PHY 217.001 Methods Of Theoretical Physics

PHY 217.002 Methods Of Theoretical Physics

PHY 290.015 Research In Physics

PHY 307.001 Seminar In Physics

PHY 407.001 Seminar in Physics

PHY 388.001 Advanced Computational Physics

PHY 488.001 Advanced Computational Physics

PHY 102.009 Atoms To Galaxies

PHY 102.010 Atoms To Galaxies

PHY 490.028 Research Development in Physics

Research Interests & Areas

Migraine is a disease afflicting an estimated 1 billion people worldwide. For migraineurs, the effects can be debilitating and costly. While treatment options are improving, the underlying causes remain elusive. We use Drosophila Melanogaster (fruit flies) as a model to study the mechanisms that lead to migraine initiation. By pairing our experimental studies with computational models, we aim to understand the cellular-level neuronal interactions that initiate the cause migraine.

Atomic collisions provide key insights into one of the most fundamental forces of nature – the Coulomb force. The study of atomic collisions is primarily used to understand the dynamics of charged particle interactions, but is vital to other areas of physics, such as plasma physics, astrophysics, and biophysics. Our research uses state-of-the-art high performance computing techniques, including machine learning, to model collision processes and provide guidance to our experimental colleagues. We are also studying how new matter wave forms, known as twisted electrons, interact with atoms and how these exciting and strange particles differ from their untwisted counterparts.

The goal of ultrafast physics is to understand electronic motion on its natural timescale. This is typically achieved by studying the interaction of atoms and molecules with short, high-intensity laser pulses. We use sculpted laser pulses to study processes such as above threshold ionization, tunneling ionization, and high-order harmonic generation. Sculpted pulses have unique properties that can be used to access physical properties of atoms and molecules that are otherwise inaccessible, such as their rotational properties. They can also be used to create atomic states useful in quantum computing applications. Our goals are to identify new techniques for the study of rotational properties of atoms and to find efficient methods of generating atomic states for use in quantum computers.

Ph D

Missouri University of Science and Technology

BA

Drury University

Outstanding University Researcher

Illinois State University
2025

Researcher to Know

Illinois Science and Technology Coalition
2019

Shaw Teaching Fellowship

Illinois State University
2018

Impact Award

Illinois State University
2017

Outstanding College Researcher

Illinois State University
2017

Outstanding College Teaching Award

Illinois State University
2017

CAS Award for Outstanding Teaching

Illinois State University
2016

Research Initiative Award

Illinois State University
2016

Outstanding New Faculty Member

Henderson State University
2012

Journal Article

Harris, A., & Fritzsche, S. A distorted-wave approach to the elastic scattering of twisted electrons on helium. J. Phys. B 58 (2025): 095201.
Aygun, J., Buitrago, C., Ciappina, M., & Harris, A. Spectral Phase Pulse Shaping Reduces Ground State Depletion in High Order Harmonic Generation. Eur. Phys. J. D 78 (2024): 103.
Wasowicz, T., Jurkowski, M., Harris, A., & Ljubić, I. Unveiling the electron- induced ionization cross-sections and fragmentation mechanisms of 3,4-dihydro-2H- pyran. J. Chem. Phys. 161 (2024): 064304.
Harris, A. Projectile coherence effects in twisted electron ionization of helium. Atoms 11 (2023): 79.
Harris, A. Single and Double Scattering Mechanisms in Ionization of Helium by Electron Vortex Projectiles. J. Phys. B 54 (2021): 155203.

Presentations

Attosecond Streaking Using Sculpted Laser Pulses. ISU Research Symposium. (2023)
Mechanisms of Initiation and Termination of Cortical Spreading Depression in Migraine Disorders. CAURS. (2023)
Mechanisms of Initiation of Cortical Spreading Depression in Migraine Disorders. ISU Research Symposium. (2023)

Grants & Contracts

RUI: Atomic Physics with a Twist. NSF. Federal. (2022)
RUI: Path Integrals and Charged Particle Dynamics. National Science Foundation. Federal. (2019)
Path Integral Approach to Ion-Impact Collisions. National Science Foundation. Federal. (2015)