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| URL | https://doi.org/10.18429/JACoW-NAPAC2025-THP040 |
|---|---|
| Title | Growth and characterization of GaAs-based spin-polarized photocathodes |
| Authors |
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| Abstract | Spin-polarized electron sources find application in both high-energy and nuclear physics experiments. We describe in detail the design and characterization of different photocathodes based on GaAs/GaAsP superlattice structures. These structures are fabricated with a Distributed Bragg Reflector (DBR) aimed at achieving a high quantum efficiency (QE)~ 20% in addition to a high electron spin polarization (ESP) ~85% at the desired wavelength of 780 nm. We present the QE and ESP measurements of photoemitted electrons as a function of wavelength of incident light, along with morphological and photoluminescence measurements. |
| Paper | download: THP040.pdf |
| Cite | BibTeX, LaTeX, Text/Word, RIS, EndNote |
| Conference | 6th North American Particle Accel. Conf. (NAPAC2025) |
| Series | |
| Location | Sacramento, CA, USA |
| Date | 10-15 Aug 2025 |
| Publisher | JACoW Publishing, Geneva, Switzerland |
| Editorial Board | Tor O. Raubenheimer (SLAC), Roark A. Marsh (LLNL), Eric Prebys (UC Davis), Ling Wang (MSU), Petr M. Anisimov (LANL), Kip Bishofberger (LANL), Gustavo Bruno (ANL), Zhichu Chen (SARI), Jan Chrin (PSI), Kelly Jaje (ANL), Jaeyu Lee (POSTECH), Magdalena Montes-Loera (SLAC), Mary Saethre (PHENOTYPE), Tasha Summers (SLAC), Kent Wootton (ANL) |
| Online ISBN | 978-3-95450-261-5 |
| Online ISSN | 2673-7000 |
| Received | 07 August 2025 |
| Revised | 14 August 2025 |
| Accepted | 15 August 2025 |
| Issued | 28 January 2026 |
| DOI | 10.18429/JACoW-NAPAC2025-THP040 |
| Pages | 1030-1033 |
| Copyright | Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |