Matches in DBpedia 2016-04 for { ?s ?p "Negative index metamaterial or negative index material (NIM) is a metamaterial where the refractive index for an electromagnetic wave can be determined and has a negative value over some frequency range.NIMs are constructed of periodic basic parts called unit cells, which are usually significantly smaller than the wavelength. The unit cells of the first experimentally investigated NIMs were constructed from circuit board material, or in other words, wires and dielectrics. And in general, these artificially constructed cells are stacked or planar and configured in a particular repeated pattern to compose the individual NIM material. For instance, the unit cells of the first NIMs were stacked horizontally and vertically, resulting in a pattern that was repeated and intended (see below images).Specifications for the response of each unit cell are predetermined prior to construction and are based on the intended or desired response of the entire, newly constructed, material. In other words, each cell is individually tuned to respond in a certain way, based on the desired output of the NIM. The aggregate response is mainly determined by the geometry unit cell, and substantially differs from the response of its constituent materials. In other words, the way the NIM responds is that of a new material, unlike the wires and dielectrics it is made from. Hence, the NIM has become an effective medium. Also, in effect, this metamaterial has become an “ordered macroscopic material, synthesized from the bottom up”, and has emergent properties beyond its components.Metamaterials which exhibit a negative value for the refractive index such as negative index materials are often referred to by any of several terminologies: left-handed media or left-handed material (LHM), backward wave media (BW media), media with negative refractive index, double negative (DNG) metamaterials, and other similar names."@en }
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- Negative_index_metamaterials abstract "Negative index metamaterial or negative index material (NIM) is a metamaterial where the refractive index for an electromagnetic wave can be determined and has a negative value over some frequency range.NIMs are constructed of periodic basic parts called unit cells, which are usually significantly smaller than the wavelength. The unit cells of the first experimentally investigated NIMs were constructed from circuit board material, or in other words, wires and dielectrics. And in general, these artificially constructed cells are stacked or planar and configured in a particular repeated pattern to compose the individual NIM material. For instance, the unit cells of the first NIMs were stacked horizontally and vertically, resulting in a pattern that was repeated and intended (see below images).Specifications for the response of each unit cell are predetermined prior to construction and are based on the intended or desired response of the entire, newly constructed, material. In other words, each cell is individually tuned to respond in a certain way, based on the desired output of the NIM. The aggregate response is mainly determined by the geometry unit cell, and substantially differs from the response of its constituent materials. In other words, the way the NIM responds is that of a new material, unlike the wires and dielectrics it is made from. Hence, the NIM has become an effective medium. Also, in effect, this metamaterial has become an “ordered macroscopic material, synthesized from the bottom up”, and has emergent properties beyond its components.Metamaterials which exhibit a negative value for the refractive index such as negative index materials are often referred to by any of several terminologies: left-handed media or left-handed material (LHM), backward wave media (BW media), media with negative refractive index, double negative (DNG) metamaterials, and other similar names.".
- Q3722490 abstract "Negative index metamaterial or negative index material (NIM) is a metamaterial where the refractive index for an electromagnetic wave can be determined and has a negative value over some frequency range.NIMs are constructed of periodic basic parts called unit cells, which are usually significantly smaller than the wavelength. The unit cells of the first experimentally investigated NIMs were constructed from circuit board material, or in other words, wires and dielectrics. And in general, these artificially constructed cells are stacked or planar and configured in a particular repeated pattern to compose the individual NIM material. For instance, the unit cells of the first NIMs were stacked horizontally and vertically, resulting in a pattern that was repeated and intended (see below images).Specifications for the response of each unit cell are predetermined prior to construction and are based on the intended or desired response of the entire, newly constructed, material. In other words, each cell is individually tuned to respond in a certain way, based on the desired output of the NIM. The aggregate response is mainly determined by the geometry unit cell, and substantially differs from the response of its constituent materials. In other words, the way the NIM responds is that of a new material, unlike the wires and dielectrics it is made from. Hence, the NIM has become an effective medium. Also, in effect, this metamaterial has become an “ordered macroscopic material, synthesized from the bottom up”, and has emergent properties beyond its components.Metamaterials which exhibit a negative value for the refractive index such as negative index materials are often referred to by any of several terminologies: left-handed media or left-handed material (LHM), backward wave media (BW media), media with negative refractive index, double negative (DNG) metamaterials, and other similar names.".