Optical field enhanced multiphoton photoemission in copper mirrors

Journal Article · Mon Sep 20 04:00:00 EDT 1993 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.110757· OSTI ID:6242092

Srinivasan-Rao, T; Fischer, J; Tsang, T ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973 (United States)

Photoemission from diamond turned copper mirror with laser beams of intensity 10[sup 11] W/cm[sup 2] at the photon energy of 2 eV and pulse duration of [similar to]300 fs indicates that the electric field associated with the photons enhances the photoemission. At the optimum incident angle, the electron yield with [ital p]-polarized light was 75 times larger than that with [ital s]-polarized light and 4 times larger than that at normal incidence for a constant energy. These enhancements were underestimated by the changes in the absorption and were attributed in this letter to the optical field effect.

• OSTI ID: 6242092
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 63:12; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

661220 -- Particle Beam Production & Handling
665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEAM PRODUCTION
BEAMS
COPPER
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELEMENTS
EMISSION
INCIDENCE ANGLE
IRRADIATION
LASER RADIATION
LEPTON BEAMS
METALS
MULTI-PHOTON PROCESSES
PARTICLE BEAMS
PHOTOEMISSION
POLARIZATION
PULSED IRRADIATION
RADIATIONS
SECONDARY EMISSION
TRANSITION ELEMENTS
Ta
Targets-- (1992-)
YIELDS