John Anawalt has joined PBBL as a graduate student researcher. Welcome John!!!

PBBL hosted the 2025 Photocathode Physics for Photoinjectors Workshop at ASU. Truman Idso, Anagha Ullattuparambil, Peter Owusu, and Mansoure Moeini Rizi presented their research. Congrats all!!!

Our paper titled “Evanescent Mode Photoemission” was published in Nano Letters with Ali Kachwala as one of the lead authors. Congrats Ali and everyone involved!!!

Our paper titled “Characterization of Cs3Sb photocathodes at cryogenic temperatures” was published in Applied Physics Letters with Peter Owusu as the lead author. Congrats Peter and everyone involved!!!

Susmeet Bakshi has joined PBBL as a graduate student researcher. Welcome Susmeet!!!

Anagha Ullattuparambil received the ASU Department of Physics William J. and Carol M. Motil Scholarship for Experimental Research. Congrats Anagha!!!

Peter Owusu received a TSMC Graduate Fellowship. Congrats Peter!!!

Our paper titled “Effect of electron–electron interactions on the emission characteristics of ultracold, nanoscale photoemission-based electron sources” was published in the Journal of Applied Physics with Gevork Gevorkyan as the lead author. Congrats Gevork and everyone involved!!!

Our paper titled "Harnessing Plasmonic Interference for Nanoscale Ultrafast Electron Sources" was published in Physical Review Letters with Ali Kachwala as the lead author and Mansoure as a co-author!!! Congrats Ali and Mansoure!!

Siddharth Karkare was promoted to Associate Professor in the ASU Department of Physics.

Anagha Ullattuparambil has joined PBBL as a graduate student researcher. Welcome Anagha!!! Anagha will be working on the development of nanostructured photoemitters.

Jak Knefel has joined PBBL as a graduate student researcher. Welcome Jak!!! Jak will be working on the growth and performance of advanced alkali-antimonide materials in high field electron guns.

Truman Idso has joined PBBL as a graduate student researcher. Welcome Truman!!! Truman will be working on investigating novel photoemisison processes at the meV energy scale.

Peter Owusu has joined PBBL as a graduate student researcher. Welcome Peter!!! Peter will be measurement of ultra-low emittance electron beams and developing new ultrafast electron diffraction capability in PBBL

Ali Kachwala successfully defended his thesis titled "Study and Characterization of Nano-structured Electron Sources Using Photoemission Electron Microscope". Congrats Dr. Kachwala!!

Our paper titled “Ultrafast laser triggered electron emission from ultrananocrystalline diamond pyramid tip cathode” was published in the Journal of Applied Physics with Ali Kachwala as the lead author. Congrats Ali and everyone involved!!!

Our paper titled "Ion-beam-assisted growth of cesium-antimonide photocathodes" was published in the Journal of Vacuum Science and Technology: B with Pallavi Saha as the lead author!!! Congrats Pallavi!!

Our paper titled "Effects of nonlinear photoemission on mean transverse energy from metal photocathodes" was published in Physical Review Accelerators and Beams with Chris Knill as the lead author!!! Congrats Chirs!!

Our paper titled "A cryogenically cooled 200 kV DC photoemission electron gun for ultralow emittance photocathodes" was published in Review of Scientific Instruments with Gevork as the lead author!!! Congrats Gevork and all who made this gun development a successful achievement.

Our paper titled "Demonstration of Thermal-Limit Mean Transverse Energy from Cesium Antimonide Photocathodes" was published in Applied Physics Letters with Ali Kachwala and Pallavi Saha as joint first authors. Congrats Ali and Pallavi!!

Gevork Gevorkyan successfully defended his thesis titled "Investigating Limits of Ultra-low Emittance Photocathodes". Congrats Dr. Gevorkyan!!

Gevork will start a post-doctoral research position at Mayo Clinic soon.

Pallavi Saha successfully defended her thesis titled "Growth and Characterization of Cesium-Antimonide Photocathodes". Congrats Dr. Saha!!

Pallavi will start a post-doctoral research position at Brookhaven National Lab soon.

Chirs Knill successfully defended his thesis titled "Practical Limitations of Low Mean Transverse Energy Metallic Photocathodes". Congrats Dr. Knill.

Chris will start a new position as an Advanced R&D scientist at Honeywell ACST soon.

Dr. Mansoure Moeini Rizi has joined PBBL as a post doctoral researcher. Welcome Mansoure!!!

Our paper titled "Theory of photoemission from cathodes with disordered surfaces" was published in the Journal of Applied Physics with Pallavi Saha as the lead author. Congrats Pallavi!!!

Our paper titled "Near-Threshold Photoemission from Graphene-Coated (110)" was published in Physical Review Applied with Chris Knill as the lead author. Congrats Chris!!!

Our paper titled "Quantum Efficiency, Photoemission Energy Spectra and Mean Transverse Energy of Ultrananocrystalline Diamond Photocathode" was published in Journal of Applied Physics with Ali Kachwala as the lead author. Congrats Ali!!!

Congrats Gevork!! Gevork Gevorkyan successfully passed his Comprehensive and Prospectus exams

Congrats Pallavi!! Pallavi Saha successfully passed her Comprehensive and Prospectus exams

Congrats Ali!!! Ph.D. student Ali Kachwala received the GPSA Research Excellence Award

Congrats Gevork and Ali!!! Ph.D. Students Gevork Gevorkyan and Ali Kachwala received student scholarships to attend US Particle Accelerator school in Winter 2023

Congrats Chris!! Chris Knill successfully passed his Comprehensive and Prospectus exams

PBBL had a significant presence at the Nort American Particle Accelerator Conference. Gevork Gevorkyan and Pallavi Saha presented contributed talks. Chris Knill and Ali Kachwala presented posters about their research. Congrats all!!!

Congrats Carlos! PBBL undergraduate students Carlos Cardena got the Sekazi K. Mtingwa Scholarship to attend US Particle Accelerator School in Summer 2022.

Post-doc Dr. Oksana Chubenko accepted a tenure-track assistant professor of accelerator physics position at Northern Illinois University. She begins her new position in August 2022. Congrats Oksana!!!

Our paper titled "Physically and chemically smooth cesium-antimonide photocathodes on single-crystal strontium titanate substrates" was published in Applied Physics Letters with Pallavi Saha as the lead author. Congrats Pallavi!!!

Alimohammad Kachwala was awarded ASU Physics Department's William J. and Carol M. Motil Scholarship for Experimental Research for his work on commissioning the Photoemission Electron Microscope at PBBL. Congrats Ali!!!