NEGATIVE-INDEX METAMATERIALS
Harvey_NIM
Harvey_NIM
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Split-ring resonators are often used in<br />
metamaterials to induce strong<br />
magnetic coupling to the B field and<br />
provide negative µ by acting as a<br />
resonant LC circuit<br />
! ! = !1 −<br />
!! !<br />
! ! !!<br />
! ! ! − ! !!<br />
Wire mesh mimics a diluted metal and can provide<br />
negative ε with proper geometrical choices<br />
! ! = !1 −<br />
2!! !<br />
! ! ! ! ln a r<br />
!<br />
10
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