Highly Effective Polarized Electron Sources Based on Strained Semiconductor Superlattice with Distributed Bragg Reflector

Conference · Wed Nov 28 04:00:00 EST 2007

DOI:https://doi.org/10.1063/1.2888077· OSTI ID:920278

Gerchikov, L G; Aulenbacher, K; Clendenin, J E; Kuz'michev, V V; Mamaev, Yu A; Maruyama, T; Mikhrin, V S; Roberts, J S; Utstinov, V M; Vasiliev, D A; Vasiliev, A P; Yashin, Yu P; Zhukov, A E

Resonance enhancement of the quantum efficiency of new polarized electron photocathodes based on a short-period strained superlattice structures is reported. The superlattice is a part of an integrated Fabry-Perot optical cavity. We demonstrate that the Fabry-Perot resonator enhances the quantum efficiency by the order of magnitude in the wavelength region of the main polarization maximum. The high structural quality implied by these results points to the very promising application of these photocathodes for spin-polarized electron sources.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 920278
• Report Number(s): SLAC-PUB-12980
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
Accelerators
ACCPHY
MATSCI
ELECTRON SOURCES
PHOTOCATHODES
POLARIZATION
QUANTUM EFFICIENCY
RESONANCE
RESONATORS
SUPERLATTICES