Publications (3)6.01 Total impact
-
Article: Fixed-angle observation of surface plasmon coupled chemiluminescence from palladium thin films
[show abstract] [hide abstract]
ABSTRACT: In this letter, the fixed-angle observation of surface plasmon coupled chemiluminescence (SPCC) from palladium thin films is reported. Fresnel calculations predict that light 492–549 nm spectral range can efficiently induce surface plasmon modes in 15 nm palladium thin films. Free-space emission from blue, green, and chartreuse chemiluminescent solutions on palladium thin films was isotropic, while the SPCC emission was highly directional and predominantly p-polarized in accordance with the predictions of the Fresnel calculations. In addition, the decay rates of the SPCC and free-space emission were similar, which suggests that palladium thin films have no catalytic effect on chemiluminescence emission.Applied Physics Letters 09/2009; 95(12):123117-123117-3. · 3.84 Impact Factor -
Article: Surface plasmon coupled chemiluminescence from iron thin films: Directional and approaching fixed angle observation
[show abstract] [hide abstract]
ABSTRACT: We report the observation of surface plasmon coupled chemiluminescence (SPCC) from iron thin films. Theoretical Fresnel calculations were employed to determine the optimum thickness of iron thin films to be 15 nm, which is assessed by the value of minimum reflectivity curves for incident light upon the thin film. An overlayer 10 nm thick SiO <sub>2</sub> was used to protect the iron thin films from oxidation by air or physical changes induced by chemiluminescent solutions. SPCC emission from blue, green, and chartreuse chemiluminescent solutions on iron films can be observed at a fixed angle of 60° for all the chemiluminescent solutions, while free-space emission was isotropic. Iron thin films do not have a catalytic effect on chemiluminescence emission.Journal of Applied Physics 08/2009; · 2.17 Impact Factor -
Article: Directional surface plasmon coupled chemiluminescence from nickel thin films: Fixed angle observation
[show abstract] [hide abstract]
ABSTRACT: a b s t r a c t Directional surface plasmon coupled chemiluminescence (SPCC) from nickel thin films is demonstrated. Free-space and angular-dependent SPCC emission from blue, green and turquoise chemiluminescent solutions placed onto nickel thin films attached to a hemispherical prism were measured. SPCC emission was found to be highly directional and preferentially p-polarized, in contrast to the unpolarized and iso-tropic chemiluminescence emission. The largest SPCC emission for all chemiluminescence solutions was observed at a fixed observation angle of 60°, which was also predicted by theoretical Fresnel calculations. It was found that nickel thin films did not have a catalytic effect on chemiluminescence emission.04/2009;
Top co-authors
Top Journals
Institutions
-
2009
-
University of Maryland, Baltimore
- Department of Biochemistry and Molecular Biology
Baltimore, MD, USA
-
