An electromagnetic radiation absorberfor absorbing radiation in the wavelength range lambdamin to lambdamax The absorber has a conductor layer in contact with a dielectric layer. The conductor layer carries a plurality of apertures of sub-wavelength dimension and the thickness of the absorber is less than lambdamin/4n, where n is the refractive index of the dielectric. The dielectric layer may be sandwiched between two conductor layers, one of which has the structure described above. The invention is also directed to various articles comprising such an absorber.
申请公布号
WO2005013663(A2)
申请公布日期
2005.02.10
申请号
WO2004GB03145
申请日期
2004.07.19
申请人
QINETIQ LIMITED;TREEN, ANDREW, SHAUN;LAWRENCE, CHRISTOPHER, ROBERT;SAMBLES, JOHN, ROY;HIBBINS, ALISTAIR, PAUL
发明人
TREEN, ANDREW, SHAUN;LAWRENCE, CHRISTOPHER, ROBERT;SAMBLES, JOHN, ROY;HIBBINS, ALISTAIR, PAUL