From Event: SPIE Optical Engineering + Applications, 2016
We propose `digital cloaking' as a method for practical cloaking, where space, angle, spectrum, and phase are discretized. At the sacrifice of spatial resolution, a good approximation to an `ideal' cloak can be achieved- a cloak that is omnidirectional, broadband, operational for the visible spectrum, three- dimensional (3D), and phase-matching for the light field, among other attributes. Experimentally, we demonstrate a two-dimensional (2D), planar, ray optics version of our proposed digital cloak by using lenticular lenses, similar to `integral imaging' for 3D displays. With the continuing improvement in commercial digital technology, the resolution limitations of a digital cloak will be minimized, and a wearable cloak can be developed in the future.
Joseph S. Choi and John C. Howell, "Digital integral cloaking," Proc. SPIE 9948, Novel Optical Systems Design and Optimization XIX, 99480O (Presented at SPIE Optical Engineering + Applications: August 30, 2016; Published: 30 September 2016); https://doi.org/10.1117/12.2242915.
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