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Title: Observation of coherent oscillations in plasma-enhanced atomic layer deposition Ag films

Acoustic oscillations were observed in ultrafast transient absorption of nanostructured Ag films produced by plasma-enhanced atomic layer deposition (PEALD). The oscillations are attributed to modulations of localized surface plasmon resonance (SPR) bands that naturally arise in the PEALD films and can be described as two lateral modes (∼50 and 100 GHz) with different dephasing times. Contributions from electron-phonon coupling and lattice dynamics in the transient response vary systematically with the probe wavelength relative to the SPR maximum (500–1000 nm)
Authors:
; ; ;  [1] ; ;  [2]
  1. Chemistry Division, Naval Research Laboratory, Washington, DC 20375 (United States)
  2. Electronics Science and Technology Division, Naval Research Laboratory, Washington, DC 20375 (United States)
Publication Date:
OSTI Identifier:
22283140
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; ELECTRON-PHONON COUPLING; MODULATION; NANOSTRUCTURES; OSCILLATIONS; PLASMA; PLASMONS; PROBES; RESONANCE; SILVER; SURFACES; THIN FILMS; TRANSIENTS