Dynamically variable metamaterial lens and method

Details Dynamically variable metamaterial lens and method Dynamically variable metamaterial lens and method

2011-01-04

2011-01-04

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S241000

Reexamination Certificate

active

07864394

ABSTRACT:
A dynamically variable lens is made from actively tunable electromagnetic metamaterial cells. The lens operates on electromagnetic radiation including: radio frequency waves, microwaves, teraherz waves, near infrared waves, infrared waves and visible waves. The focal length of the lens is changed at a selected frequency. In the alternative, the frequency of radiation operated on is changed as a function of time. A third alternative provides precise control of the index of refraction of the lens. The index of refraction is varied progressively across the lens from one edge to the opposite edge causing the radiation to be directed at an angle.

REFERENCES:
patent: 7405866 (2008-07-01), Kuekes et al.
patent: 7525711 (2009-04-01), Rule et al.
patent: 7746538 (2010-06-01), Ishii
Eugene Hecht, Optics, 2nd Edition, p. 136, Figure 5.14 (Addison-Wesley, Reading, MA, 1988).
C. G.Parazzoli et al., Applied Physics Letters 84, 3232-3234, Fig. 1. (2004).
R. B. Greegor et al., Applied Physics Letters 87, 091114, Fig. 1. (2005).
T. Driscoll et al., Applied Physics Letters 88, 081101, Fig. 1. (2006).
A.F. Starr et al., Physical Review B 70, 113102 (2004).
K.A. Boulais et al., Tunable split-ring resonators for metamaterials using photocapacitance of semi-insulating GaAs, Appl. Phys. Lett. 93, 043518 (2008).
B.G. Streetman et al. List of band gaps, Solid State Electronic Devices, 5th edition, PrenticeHall, New Jersey (2000), 524.
R.G. Lerner and G.L. Trigg, Concise Encyclopedia of Solid State Physics, Addison-Wesley Publishing Co., Inc. (1983) pp. 75-77.
J. Lagowski, D.G. Lin, T.P. Chen, M. Skowronski and H.C. Gatos, “Native hole traps in bulk GaAs and its association with the double-charge state of the arsenic antisite defect”, Appl. Phys. Lett. 47, pp. 929-931 (1985).
P. Omling, P. Silverberg and L. Samuelson, “Identification of a second energy level of EL2 in n-type GaAs”, Phys. Rev. B38, pp. 3606-3609 (1988).
D.C. Look and Z.Q. Fang, “On the energy level of EL2 in GaAs”, Solid-State Electronics 43 (1999), pp. 1317-1319.

Affiliated with

Also associated with

Rating

Dynamically variable metamaterial lens and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamically variable metamaterial lens and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamically variable metamaterial lens and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2624492