Results 221 to 230 of about 2,233,700 (257)

Enhanced absorption of Langmuir-Blodgett monolayers on silver island films

Thin Solid Films, 1989
Abstract Langmuir-Blodgett (LB) films of N,N ′-dioctadecyl rhodamine B (RhB derivative) were deposited on silver island films. The absorption spectra of the composite films were measured. Enhancement of the absorption was detected. The degree of enhancement decreased as the distance between the silver island film surface and the dye monolayers ...
Hiroji Muraki, Toshiaki Ito, Mitsuo Hiramatsu   +2 more
openaire   +1 more source

Enhancement of the infrared absorption of methanol adsorbed on silver island films

Surface Science, 1999
Abstract Infrared absorption spectra for physisorbed methanol at 90 K on silver films of mass thicknesses 4–20 nm, deposited in UHV onto Ge substrate surfaces at 473 K, have been measured at normal incidence of radiation. The results show that the absorption intensity of the methanol C–O stretch mode depends on the mass thickness of silver film and ...
Y. Suzuki, H. Seki, T. Inamura, T. Tanabe, T. Wadayama, A. Hatta   +5 more
openaire   +1 more source

Optical and structural characterization of silver islands films on glass substrates

Vacuum, 2008
Metal islands films (MIFs) of Ag on glass substrates were fabricated by the e-beam evaporation process. The dependence of the surface plasmon (SP) absorption wavelength on the deposition mass thickness and substrate temperature was quantified. The structural and optical characterization of the MIFs, done by spectrometry, grazing incidence small angle X-
Dubček, Pavo, Turković, Aleksandra, Sancho Parramon, Jordi, Lončarić, Martin, Zorc, Hrvoje, Pavlović, Mladen   +5 more
openaire  

Silver Island Films for Write-Once Optical Storage Media

Optical Data Storage, 1994
Recently many write-once (WO) storage media have been proposed and investigated, including organic dye and tellurium based alloy, etc. A metal island film is one of the potential WO storage media. It is composed of nanometer-size metal particles (i.e., islands) and exhibits a high reflectance and large absorptance due to the resonance of free electrons
Kazutaka Baba, Kazuhiro Hayashi, Mitsunobu Miyagi   +2 more
openaire   +1 more source

Preparation and optical property of island silver films embedded in silica

SPIE Proceedings, 2000
Island silver films (nanoclusters, quantum dots) embedded in silica are prepared on silicon wafers and glasses by sputtering. Atomic force microscope is used to characterize the morphology and distribution of silver nanoclusters, the size of nanoclusters varies from several ten to several hundred nanometers.
Zhenquan Lai, Bin Zhou, Jue Wang, S. M. Attia, Qinyuan Zhang, Li Zhao, Jiayu Wang, Xuejian Yan   +7 more
openaire   +1 more source

Near-Infrared Fluorescence Enhancement Using Silver Island Films

Plasmonics, 2006
Near-infrared (near-IR) excitation produces little background signal from biological molecules, making near- IR fluorescence technology highly useful in proteomic and genomic applications. To increase the emissions of near-IR fluorophores, we examined the use of metal-enhanced fluorescence on these longer wavelength dyes.
Jon P. Anderson, Mark Griffiths, Vince R. Boveia   +2 more
openaire   +1 more source

Raman spectroscopy of carbon monoxide adsorbed on silver island films

Surface Science, 1990
Abstract CO was adsorbed at 17 K on clean silver island films prepared in UHV. The surface enhanced Raman scattering (SERS) spectrum shows besides the stretch band at ∼ 2112 cm−1 of “chemisorbed” CO an unshifted band at ∼ 2139 cm−1 whose intensity saturates at monolayer coverage. It is assigned to “ physisorbed” CO.
I Mrozek, C Pettenkofer, A Otto
openaire   +1 more source

Flourescent lifetimes and yields of molecules adsorbed on silver-island films

Journal of Luminescence, 1981
Abstract When molecules are absorbed on silver island films, their flourescent lifetimes are found to be shortened by about three orders of magnitude and their decay is found to be non-exponential in time. This behavior is a result of the electromagnetic interaction between the molecules and the silver islands.
D.A. Weitz, S. Garoff, C.D. Hanson, T.J. Gramila, J.I. Gersten   +4 more
openaire   +1 more source

Surface-Enhanced Raman Scattering of Rhodamine 123 in Silver Hydrosols and in Langmuir–Blodgett Films on Silver Islands

Journal of Colloid and Interface Science, 2001
Surface-enhanced Raman scattering(SERS) of the Rhodamine 123 (Rh 123) molecule on ion-induced silver colloids has been studied. A time-dependent study of the SER spectra at a particular pH confirms charge transfer interaction between the probe molecule and the metal.
Joydeep, Chowdhury, Prabir, Pal, Manash, Ghosh, T. N., Misra   +3 more
openaire   +2 more sources

Surface-Enhanced Photopolymerization of a Diacetylene Derivative in Langmuir−Blodgett Films on a Silver Island Film

The Journal of Physical Chemistry B, 1998
Surface-enhanced resonance Raman scattering (SERRS) spectroscopy was applied to monitor the photopolymerization process of one monolayer (L = 1) of a Langmuir−Blodgett (LB) film of the cadmium salt of a diacetylene monocarboxylic acid derivative, 10,12-pentacosadiynoic acid (DA), prepared on an evaporated silver island film with a mass thickness of 60 ...
Eiji Shirai, Yoshie Urai, Koichi Itoh
openaire   +1 more source