Journal article
Integrated plasmonic lens photodetector
Applied physics letters, v 94(8), pp 083501-083501-3
23 Feb 2009
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We present a fabricated metal-semiconductor-metal (MSM) photodetector exhibiting an enhanced photocurrent by integrating a nanoscale metallic grating into its contacts. This serves to increase the incident photon flux about the aperture of the device by guiding incident photons as surface plasmon polaritons. High speed time response data shows that the device responsivity may be increased without sacrificing speed. We demonstrate both a photocurrent enhancement and responsivity increase of about 90% at the design wavelength in comparison to otherwise identical MSM photodetectors without integrated nanoscale gratings. The device retains the MSM advantages of simplicity, planarity, and monolithic integrability.
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Details
- Title
- Integrated plasmonic lens photodetector
- Creators
- James Shackleford - Department of Electrical and Computer Engineering, Drexel University, Philadelphia,Pennsylvania 19104, USARichard Grote - Department of Electrical and Computer Engineering, Drexel University, Philadelphia,Pennsylvania 19104, USAMarc Currie - Department of Electrical and Computer Engineering, Drexel University, Philadelphia,Pennsylvania 19104, USAJonathan Spanier - Department of Electrical and Computer Engineering, Drexel University, Philadelphia,Pennsylvania 19104, USABahram Nabet - Department of Electrical and Computer Engineering, Drexel University, Philadelphia,Pennsylvania 19104, USA
- Publication Details
- Applied physics letters, v 94(8), pp 083501-083501-3
- Publisher
- American Institute of Physics
- Grant note
- W911NF-08-1-0067 / USARO W911NF-06-1-0127 / USARO ECCS 0702716 / NSF
- Resource Type
- Journal article
- Academic Unit
- Electrical and Computer Engineering; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000263804400085
- Scopus ID
- 2-s2.0-61349127217
- Other Identifier
- 991014878170004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Applied