Optical: systems and elements – Lens
Reexamination Certificate
2011-01-04
2011-01-04
Collins, Darryl J (Department: 2873)
Optical: systems and elements
Lens
C359S652000, C359S796000
Reexamination Certificate
active
07864434
ABSTRACT:
In a particular embodiment, a solid immersion lens includes meta-material slabs formed from multiple layers of at least two different compositions. Each meta-material slab has a first effective index of refraction. The meta-material slabs are adapted to propagate an evanescent wave in a direction parallel to an axis to form a cone-shaped wave along the axis. The solid immersion lens further includes a core sandwiched between the meta-material slabs along the axis and having a second index of refraction that is less than the first effective index of refraction. The core directs surface plasmons that are excited by the cone-shaped wave to a focused area coincident with the axis.
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Collins Darryl J
Magee Theodore M.
Seagate Technology LLC
Westman Champlin & Kelly P.A.
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