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Tailoring of the subwavelength focus
Author(s) -
Sydoruk O.,
Shamonina E.,
Solymar L.
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22689
Subject(s) - metamaterial , focus (optics) , microwave , transmitter , optics , lens (geology) , physics , position (finance) , wavelength , engineering , computer science , telecommunications , channel (broadcasting) , finance , economics
Subwavelength focusing by an ensemble of magnetically coupled metamaterial elements is studied theoretically for the case when all the dimensions are small relative to the electromagnetic wavelength. It is shown that in contrast to expectation a focus can be placed in any desired position for any transmitter‐lens configuration by the appropriate tuning of the receiver. A mathematical proof is provided and two examples are shown demonstrating a focal width of λ /60. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2228–2231, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22689