Meet the Team

Dr. Siddharth Karkare
Principal Investigator
Associate Professor, Department of Physics
Graduate Faculty, SEMTE, Materials Science and Engineering
Contact Information:
Email: [email protected]
Office: PSF 240, Department of Physics, Arizona State University, Tempe, AZ, USA-85287
Siddharth Karkare is an associate professor in the Department of Physics. Prof. Karkare obtained his Bachelor's degree in Energy Engineering from the Indian Institute of Technology - Kharagpur in 2009 and a Ph.D. in Physics from Cornell University in 2015. After a 3-year post-doctoral research position at the Lawrence Berkeley Lab he joined ASU in 2018. His research is at the interface of accelerator physics and nano-science and focuses on understanding the fundamentals of light-matter interactions leading to photoemission of electrons for the generation and manipulation of bright electron beams for various applications ranging from meter-scale electron microscopes to large km-scale particle colliders and free-electron lasers.
Howard Padmore
Adjunct Professor of Physics
Mansoure Moeini Rizi
Post Doctoral Research Associate
Anagha Ullattuparambil
Graduate Student Researcher
Jak Knefel
Graduate Student Researcher
Peter Owusu
Graduate Student Researcher
Truman Idso
Graduate Student Researcher
John Anawalt
Graduate Student Researcher
I joined PBBL in 2023 as an undergrad and am now pursuing a PhD in Physics with an interest in accelerator physics. I currently operate the DC gun and beamline to characterize photocathodes. Outside the lab, I love watching and playing sports, studying history, and spending time outdoors.
Susmeet Bakshi
Graduate Student Researcher
My PhD research focuses on Photoemission Electron Microscopy (PEEM)-based investigations of GaN and ternary compound photocathode materials, particularly UV illumination-induced changes in quantum efficiency, work function, surface electronic structure, and energy distribution. Outside of the microscopic world of lasers interacting with surfaces, I tend to zoom out to the macroscopic one following football, painting, diving into popular science books, watching films, or exploring rock music.
Elijah Giles
Undergraduate Student Researcher
I am Eli Giles and I am a second year student majoring in Mechanical Engineering and Applied Physics. In my free time I enjoy hobbies like watchmaking and piano tuning as well as using the machine shop at the Polytechnic campus.
Jason Sanders
Undergraduate Student Researcher
After working on nuclear reactors in the Navy, I realized that contributing to scientific advancements and studying physics would be the most fulfilling career path. In my free time I enjoy movies, Dungeons and Dragons, and Magic the Gathering.
Patrick Ohagan
Undergraduate Student Researcher
I am a senior undergraduate student studying Physics with interests in accelerators and electron beams. Outside of academics and research, I enjoy aviation, astronomy, and hiking.
Jo Mama
Undergraduate Student Researcher
Post Docs/Research Scientists
- (Name, Years active at PBBL, Position After PBBL)
- Oksana Chubenko, 2019-2022, Assistant Professor, Department of Physics, Northern Illinoi University
Graduate Students
- (Name, Years active at PBBL, Position After PBBL)
- Alimohammad Kachwala, 2024, Post Doctoral Researcher, Jefferson Lab
- Chris Knill, 2018-2023, Advanced R&D scientist at Honeywell ACST
- Gevork Gevorkyan, 2018-2023, Post-doctoral Researcher, Mayo Clinic
- Pallavi Saha, 2018-2023, Post-doctoral researcher, Brookhaven National Lab
Undergraduate Students
- (Name, Years active at PBBL, Position After PBBL)
- Tushya Kalpada, 2023-2026, Graduate Student, University of Maryland, College Park
- Yoselin Moroyoqui, Fall 2025, ASU Physics
- Roxanne Ridley, 2024, ASU Physics
- Carlos Sarabia Cardenas, 2020-2023, Graduate Student, Michigan State University
- Endy Gonzalez, 2022-2023, ASU Physics
- Haimant Ishan, Spring 2022, ASU Physics
- Tatum Hanks, Fall 2021 - Summer 2022, ASU Physics
- Roxanne Dyer, Fall 2020 - Spring 2022, ASU Physics
- Stephen Douyon, Spring 2021 - Fall 2021, ASU Physics
- Daniel Buchanan, Spring 2020 - Fall 2020, ASU Physics
- Madeline Jacobs, Spring 2020 - Summer 2020, ASU Physics