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

Journal Article · Wed Feb 06 00:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2888077· OSTI ID:21055189

Gerchikov, L G; Kuz'michev, V V; Mamaev, Yu A; Vasiliev, D A; Yashin, Yu P ^[1]; Aulenbacher, K ^[2]; Clendenin, J E; Maruyama, T ^[3]; Mikhrin, V S; Ustinov, V M; Vasiliev, A P; Zhukov, A E ^[4]; Roberts, J S ^[5]

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1. St. Petersburg State Polytechnic University (Russian Federation)
2. Institute of Nuclear Physics, Mainz University, Mainz (Germany)
3. Stanford Linear Accelerator Center, Stanford, CA (United States)
4. A.F. Ioffe Physicotechnical Institute RAS (Russian Federation)
5. Department of Electronic and Electrical Engineering, University of Sheffield (United Kingdom)

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.

• OSTI ID: 21055189
• Journal Information: AIP Conference Proceedings, Vol. 980, Issue 1; Conference: PSTP2007: 12. international workshop on polarized ion sources, targets and polarimetry, Upton, NY (United States), 10-14 Sep 2007; Other Information: DOI: 10.1063/1.2888077; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAVITY RESONATORS
ELECTRON SOURCES
ELECTRONS
FABRY-PEROT INTERFEROMETER
PHOTOCATHODES
QUANTUM EFFICIENCY
RESONANCE
SEMICONDUCTOR MATERIALS
SPIN
SPIN ORIENTATION
SUPERLATTICES
WAVELENGTHS