Wideband Optical Filters with Small Gap Coupled Subwavelength Metal Structures

Details Wideband Optical Filters with Small Gap Coupled Subwavelength Metal Structures Wideband Optical Filters with Small Gap Coupled Subwavelength Metal Structures

2012-01-06

arxiv.org/abs/1201.1463v1

Physics

Optics

Scientific paper

In this letter, we show that the bandwidth of optical band-stop filters made of subwavelength metal structures can be significantly increased by the strong plasmonic near-field coupling through the corners of the periodic metal squares. The effect of small gap coupling on the spectral bandwidth is investigated by varying the gap size between the metal squares. An equivalent transmission line model is used to fit the transmission and reflection spectra of the metal filters. The transmission line model can characterize well the metal structures with the gap size larger than the near-field decay length. However, it fails to model the transmission and reflection spectra when the gap size reaches the decay range of the near-field in the small gaps.

Affiliated with

Also associated with

No associations

Rating

Wideband Optical Filters with Small Gap Coupled Subwavelength Metal Structures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Wideband Optical Filters with Small Gap Coupled Subwavelength Metal Structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wideband Optical Filters with Small Gap Coupled Subwavelength Metal Structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-663348