Experimental realization of a metamaterial detector focal plane array.
Published
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
Language
- eng