Experimental realization of a metamaterial detector focal plane array.


Journal Article

We present a metamaterial absorber detector array that enables room-temperature, narrow-band detection of gigahertz (GHz) radiation in the S band (2-4 GHz). The system is implemented in a commercial printed circuit board process and we characterize the detector sensitivity and angular dependence. A modified metamaterial absorber geometry allows for each unit cell to act as an isolated detector pixel and to collectively form a focal plane array . Each pixel can have a dedicated microwave receiver chain and functions together as a hybrid device tuned to maximize the efficiency of detected power. The demonstrated subwavelength pixel shows detected sensitivity of -77 dBm, corresponding to a radiation power density of 27 nW/m(2), with pixel to pixel coupling interference below -14 dB at 2.5 GHz.

Full Text

Duke Authors

Cited Authors

  • Shrekenhamer, D; Xu, W; Venkatesh, S; Schurig, D; Sonkusale, S; Padilla, WJ

Published Date

  • October 24, 2012

Published In

Volume / Issue

  • 109 / 17

Start / End Page

  • 177401 -

PubMed ID

  • 23215222

Pubmed Central ID

  • 23215222

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.109.177401


  • eng