We demonstrate a multi-spectral polarization sensitive mid-infrared dots-in-a-well (DWELL) photodetector utilizing surface-plasmonic resonant elements, with tailorable frequency response and polarization selectivity. The resonant responsivity of the surface-plasmon detector shows an enhancement of up to 5 times that of an unpatterned control detector. As the plasmonic resonator involves only surface patterning of the top metal contact, this method is independent of light-absorbing material and can easily be integrated with current focal plane array processing for imaging applications.
@article{arxiv.0907.2945,
title = {A multi-spectral and polarization-selective surface-plasmon resonant mid-infrared detector},
author = {Jessie Rosenberg and Rajeev V. Shenoi and Thomas E. Vandervelde and Sanjay Krishna and Oskar Painter},
journal= {arXiv preprint arXiv:0907.2945},
year = {2015}
}