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Our Word of the Year choice serves as a symbol of each year’s most meaningful events and lookup trends.
It is an opportunity for us to reflect on the language and ideas that represented each year.
The middle of the visible spectrum has a wavelength of approximately 560 nm (for sunlight).
Photonic crystal structures are generally half this size or smaller, that is Plasmonic metamaterials utilize surface plasmons, which are packets of electrical charge that collectively oscillate at the surfaces of metals at optical frequencies.
So, take a stroll down memory lane to remember all of our past Word of the Year selections.
Negative-index metamaterial array configuration, which was constructed of copper split-ring resonators and wires mounted on interlocking sheets of fiberglass circuit board.
Some of the earliest structures that may be considered metamaterials were studied by Jagadish Chandra Bose, who in 1898 researched substances with chiral properties.
Photonic crystals and frequency-selective surfaces such as diffraction gratings, dielectric mirrors and optical coatings exhibit similarities to subwavelength structured metamaterials.Frequency selective surfaces (FSS) can exhibit subwavelength characteristics and are known variously as artificial magnetic conductors (AMC) or High Impedance Surfaces (HIS).FSS display inductive and capacitive characteristics that are directly related to their subwavelength structure.In the 1950s and 1960s, artificial dielectrics were studied for lightweight microwave antennas.Microwave radar absorbers were researched in the 1980s and 1990s as applications for artificial chiral media..