Related Experiment Video
Updated: Jan 31, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Transmission and absorption in a waveguide with a metamaterial cavity
1Department of Mathematics, The Commission on Science and Technology for Sustainable Development in the South, Institute of Information Technology, Islamabad, Pakistan.
Abstract:
The reflection and transmission of acoustic waves along a waveguide of uniform width by a metamaterial cavity is considered. The metamaterial is comprised of a closely spaced array of micro-channels separated by thin plates between which the field may be damped. Exact equations governing the field in the microstructured metamaterial cavity are replaced by an effective field using the homogenisation approach. This allows a solution to be formulated in terms of an integral equation across the interface between the metamaterial cavity and the waveguide. Attention focuses on the resonant and damping effects of a metamaterial cavity of tapered height where rainbow trapping phenomena are encountered. It is shown that near-perfect broadbanded absorption of the incoming wave energy can be achieved.
Related Concept Videos
Oral Cavity
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Nose and Nasal Cavity
Drug Absorption: Factors Affecting GI Absorption
Standing Waves in a Cavity
Masonry Cavity Walls
Maintaining a clean cavity during construction...
Absorption of Radiation

