Surface-plasmon-enhanced multiphoton photoelectric emission from thin silver films

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Optics Letters; (USA)

DOI:https://doi.org/10.1364/OL.15.000866· OSTI ID:6521633

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

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1. Brookhaven National Laboratory, Upton, NY (USA)

We report the enhancement of multiphoton photoelectric emission, from a thin silver film, by surface plasmons excited at the single-metal--vacuum interface. The surface plasmons are resonantly pumped by femtosecond laser pulses in the Kretchmann attenuated-total-internal-reflection configuration. A quantum yield approaching 2 {times} 10{sup {minus}8} at a photon fluence of 10 MW/cm{sup 2} from a two-photon process was observed, which is 5 {times} 10{sup 3} higher than that of the bulk emission measured for the same film at the same power fluence.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6521633
• Journal Information: Optics Letters; (USA), Journal Name: Optics Letters; (USA) Vol. 15:15; ISSN 0146-9592; ISSN OPLED
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELECTRON EMISSION
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
FILMS
INTERFACES
LASER RADIATION
METALS
MULTI-PHOTON PROCESSES
OPTICAL PROPERTIES
PHOTOELECTRIC EMISSION
PHYSICAL PROPERTIES
PLASMONS
QUANTUM EFFICIENCY
QUASI PARTICLES
RADIATIONS
SILVER
THIN FILMS
TRANSITION ELEMENTS