A multi-spectral and polarization-selective surface-plasmon resonant mid-infrared detector

Details A multi-spectral and polarization-selective surface-plasmon resonant mid-infrared detector A multi-spectral and polarization-selective surface-plasmon resonant mid-infrared detector

2009-07-16

arxiv.org/abs/0907.2945v1

Physics

Optics

8 pages, 3 figures

Scientific paper

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.

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