Michigan Technological University’s invisibility cloak
researchers have done it again. They’ve moved the bar on one of the holy grails
of physics: making objects invisible.
Just last month, Elena Semouchkina, an associate professor
of electrical and computer engineering at Michigan Tech, and her graduate
student, Xiaohui Wang, reported successful experimental demonstration of the
use of non-conductive ceramic metamaterials to cloak cylindrical objects from
microwave-length electromagnetic waves.
Previously, Semouchkina had designed a non-conductive glass metamaterial
cloak that worked with infrared
frequency waves, which are shorter than microwaves.