1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Perfect coupling of light to surface plasmons with ultra-narrow linewidths
Rent:
Rent this article for
USD
10.1063/1.3177011
/content/aip/journal/jcp/131/3/10.1063/1.3177011
http://aip.metastore.ingenta.com/content/aip/journal/jcp/131/3/10.1063/1.3177011
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Energy reflection coefficient vs wavelength at critical coupling for film thicknesses of 5 nm (solid curve), 10 nm (dashed curve), and 15 nm (dashed-dotted curve). (b) Quality factor, , for the surface plasmon resonance vs silver film thickness derived from the linewidths shown in (a).

Image of FIG. 2.
FIG. 2.

(a) Schematic setup of out-of-phase and in-phase sinusoidal gratings. (b) Unit cell of FDTD simulations. The vertical dashed lines depict the periodic boundaries. Two horizontal dashed lines represent the detection contours. The metal film shown in the center of the unit cell is excited either by a laser pulse generated along a single horizontal line placed a few spatial steps beneath the upper PML region (we refer to this excitation scheme as a single-ended excitation), or by two incident plane waves generated symmetrically on both sides of the film with a fixed phase delay between the incident pulses (referred to as double-ended excitation scheme).

Image of FIG. 3.
FIG. 3.

The electromagnetic Wood’s phenomenon in which an incoming wave (entering perpendicular) is diffracted tangent to the grating such that the wave fronts match the grating spacing resulting in anomalies in the reflected and transmitted waves.

Image of FIG. 4.
FIG. 4.

Sum of the transmission, , and reflection, , coefficients as a function of the incident wavelength. The solid curve illustrates the single-ended excitation scheme, whereas the dashed and dashed-dotted curves show the double-ended excitation with phase shifts and 0. Panel A corresponds to the out-phase sinusoidal grating with and . Panel B shows data for the in-phase sinusoidal grating with parameters and . The structural parameters for both gratings have been optimized so as to minimize for the double-ended excitation scheme and the long-range mode.

Image of FIG. 5.
FIG. 5.

(a) Surface averaged intensity enhancement as a function of the incident wavelength for out-of-phase (solid curve) and in-phase (dashed curve) gratings at the impedance matching conditions for the long-range plasmon mode. (b) Surface averaged intensity enhancement as a function of the film thickness at the impedance matching conditions for long-range plasmon modes for the out-of-phase (squares) and in-phase (circles) sinusoidal grating.

Loading

Article metrics loading...

/content/aip/journal/jcp/131/3/10.1063/1.3177011
2009-07-17
2014-04-19
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Perfect coupling of light to surface plasmons with ultra-narrow linewidths
http://aip.metastore.ingenta.com/content/aip/journal/jcp/131/3/10.1063/1.3177011
10.1063/1.3177011
SEARCH_EXPAND_ITEM