researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2008 · physics.opticsShow all

5 papers · 2 filters

physics.optics2008★ 118 cited

Superoscillation in speckle patterns

Mark R. Dennis, Alasdair C. Hamilton, Johannes Courtial

Waves are superoscillatory where their local phase gradient exceeds the maximum wavenumber in their Fourier spectrum. We consider the superoscillatory area fraction of random optic…

physics.optics2008★ 45 cited

Metamaterials for light rays: ray optics without wave-optical analog in the ray-optics limit

Alasdair C. Hamilton, Johannes Courtial

Volumes of sub-wavelength electromagnetic elements can act like homogeneous materials: metamaterials. In analogy, sheets of optical elements such as prisms can act ray-optically li…

physics.optics2008★ 22 cited

Fermat's principle with complex refractive indices and local light-ray rotation

Bhuvanesh Sundar, Alasdair C. Hamilton, Johannes Courtial

We describe local light-ray rotation in terms of complex refractive indices. We show that Fermat's principle holds, and we derive an extended Snell's law. The change in the angle o…

physics.optics2008★ 10 cited

Imaging with parallel ray-rotation sheets

Alasdair C. Hamilton, Johannes Courtial

A ray-rotation sheet consists of miniaturized optical components that function - ray optically - as a homogeneous medium that rotates the local direction of transmitted light rays…

physics.optics2008★ 28 cited

Local light-ray rotation

Alasdair C. Hamilton, Bhuvanesh Sundar, John Nelson +1

We present a sheet structure that rotates the local ray direction through an arbitrary angle around the sheet normal. The sheet structure consists of two parallel Dove-prism sheets…