Quantifying metarefraction with confocal lenslet arrays
arXiv:1104.2694 · doi:10.1016/j.optcom.2011.06.058
Abstract
METATOYs can change the direction of light in ways that appear to, but do not actually, contravene the laws of wave optics. This direction change applies only to part of the transmitted light beam; the remainder gets re-directed differently. For a specific example, namely confocal pairs of rectangular lenslet arrays with no dead area between lenslets, we calculate here the fractions of power of a uniform-intensity light beam incident from a specific (but arbitrary) direction that get re-directed in different ways, and we derive an equation describing this redirection. This will facilitate assessment of the suitability of METATOYs for applications such as solar concentration. Finally, we discuss similarities between the multiple refraction of light at the lenslet arrays and multiple refraction and reflection of cold atoms at a barrier in the presence of the light fields.
24 pages, 15 figures
References in corpus (10)
- Observing Zitterbewegung in Ultracold Atoms
- Generalized Rashba spin-orbit coupling for cold atoms
- Non-equilibrium spin dynamics in a trapped Fermi gas with effective spin-orbit interaction
- Quasi-relativistic behavior of cold atoms in light fields
- Double and negative reflection of cold atoms in non-Abelian gauge potentials
- Metamaterials for light rays: ray optics without wave-optical analog in the ray-optics limit
- Generalized refraction using lenslet arrays
- Local light-ray rotation
- Standard and non-standard metarefraction with confocal lenslet arrays
- Spin angular impulse due to spin-dependent reflection off a barrier