Resonator channel drop filters in a plasmon-polaritons metal

Resonator channel drop filters in a plasmon-polaritons metal.

Channel drop filters with ring/disk resonators in a plasmon-polaritons metal are studied. It shows that light can be efficiently dropped. Results obtained by the finite difference time domain method are consistent with those from the coupled mode theory. It also shows, without considering the loss of the metal, that the quality factor for the channel drop system can be very high. The quality fa...

Nanofocusing with channel plasmon polaritons.

We investigate radiation nanofocusing with channel plasmon polaritons (CPPs) propagating along subwavelength metal grooves that are tapered synchronously in depth and in width. Efficient CPP nanofocusing at telecom wavelengths with the estimated field intensity enhancement of up to approximately 90 is directly demonstrated using near-field microscopy. Experimental observations are concurred wit...

Compact gradual bends for channel plasmon polaritons.

We report the design, fabrication and characterization of compact gradual bends for channel plasmon polaritons (CPPs) being excited at telecom wavelengths. We obtain high-quality near-field optical images of CPP modes propagating along a bent V-groove in gold, which indicate good CPP mode confinement in the groove and efficient guiding around the compact S-bend connecting two 5-mum-offset groov...

Photonic crystal ring resonator-based add drop filters: a review

Surface plasmon polaritons in curved chains of metal nanoparticles

Surface plasmon polaritons (SPPs) that can be excited under a variety of different physical scenarios in chains of metal nanoparticles (plasmonic chains) is a topic of vigorous ongoing research [1–8]. Applications related to wave guiding, nanoscale manipulation and transport of optical information, and minituarization of optoelecronic elements have been envisioned. The laws governing the propag...