Time-of-flight imaging of invisibility cloaks

Details Time-of-flight imaging of invisibility cloaks Time-of-flight imaging of invisibility cloaks

2011-10-14

arxiv.org/abs/1110.3291v1

Physics

Optics

11 pages, 6 figures, journal paper

Scientific paper

As invisibility cloaking has recently become experimental reality, it is interesting to explore ways to reveal remaining imperfections. In essence, the idea of most invisibility cloaks is to recover the optical path lengths without an object (to be made invisible) by a suitable arrangement around that object. Optical path length is proportional to the time of flight of a light ray or to the optical phase accumulated by a light wave. Thus, time-of-flight images provide a direct and intuitive tool for probing imperfections. Indeed, recent phase-sensitive experiments on the carpet cloak have already made early steps in this direction. In the macroscopic world, time-of-flight images could be measured directly by light detection and ranging (LIDAR). Here, we show calculated time-of-flight images of the conformal Gaussian carpet cloak, the conformal grating cloak, the cylindrical free-space cloak, and of the invisible sphere. All results are obtained by using a ray-velocity equation of motion derived from Fermat's principle.

Affiliated with

Also associated with

No associations

Rating

Time-of-flight imaging of invisibility cloaks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Time-of-flight imaging of invisibility cloaks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-of-flight imaging of invisibility cloaks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-523690