US 7,463,329 B2
Materials for freezing light
Arthur Ballato, Oceanport, N.J. (US); and John Ballato, Clemson, S.C. (US)
Assigned to Clemson University, Anderson, S.C. (US); and United States of America as represented by the Secretary of the Army, Washington, D.C. (US)
Filed on Jan. 20, 2006, as Appl. No. 11/336,397.
Claims priority of provisional application 60/645292, filed on Jan. 20, 2005.
Prior Publication US 2006/0158603 A1, Jul. 20, 2006
Int. Cl. G02F 1/13 (2006.01); G02B 5/18 (2006.01)
U.S. Cl. 349—169  [349/170; 349/187; 349/193; 359/576; 359/589] 20 Claims
OG exemplary drawing
 
1. A method for forming a multi-layered structure comprising:
providing a first layer composed of an isotropic material, wherein the first layer defines a plane and a normal that together define an axial system for the multi-layered structure;
providing a second layer adjacent to the first layer, wherein the second layer includes a crystalline material; and
canting the geometric axis of the crystalline material with respect to the axial system of the multi-layered structure, wherein said canting induces the crystalline material to possess a permittivity tensor or a permeability tensor with at least one non-zero off-diagonal element and said canting induces an anisotropic permittivity in said second layer.