Emitting and focusing apparatus, methods, and systems
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Abstract
Apparatus, methods, and systems provide emitting, field-adjusting, and focusing of electromagnetic energy. In some approaches the field-adjusting includes providing an extended depth of field greater than a nominal depth of field. In some approaches the field-adjusting includes field-adjusting with a transformation medium, where the transformation medium may include an artificially-structured material such as a metamaterial.
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Citations
293 Claims
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1-174. -174. (canceled)
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175. A method, comprising:
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identifying a nominal field region for a focusing structure, the nominal field region having a nominal axial dimension; and determining electromagnetic parameters for a spatial region containing the nominal field region, the electromagnetic parameters providing an actual field region having an actual axial dimension greater than the nominal axial dimension;
where the electromagnetic parameters include;axial electromagnetic parameters; and transverse electromagnetic parameters that inversely correspond to the axial electromagnetic parameters. - View Dependent Claims (189, 192, 202, 205, 206, 207, 212, 214, 215, 216, 217, 227, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 257, 258, 259, 260, 261, 262, 263, 264, 266, 268, 269, 275, 277, 278, 279, 280, 284, 286, 289, 290)
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Specification