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A Fano-type interference enhanced quantum dot infrared photodetector
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10.1063/1.3593128
/content/aip/journal/apl/98/21/10.1063/1.3593128
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/21/10.1063/1.3593128
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Pictures of the QDIP with the metallic 2DSHAs. (a) Top view and (b) zoom-in view. The 2DSHA is a square lattice with the lattice constant . The diameter of the hole is . The thickness of the metal film is 30 nm.

Image of FIG. 2.
FIG. 2.

(a) Blue trace: measured FTIR transmission spectrum of the Ref-2DSHA at 77 K, Red dashed line: curve fitting of the two peak Fano-type transmission using Eq. (3). The transmission profile agrees well with the experiment FTIR transmission spectrum of the Ref-2DSHA. (b) FTIR photocurrent spectrum of the QDIP-2DSHA (pink trace) and the Ref-QDIP (blue trace) measured at 77 K. The photocurrent spectrum of the QDIP-2DSHA (pink trace) over 100% enhancement at wavelength and slight enhancement at wavelength region. The enhancement regions correspond to the two Fano dips in the FTIR transmission spectrum of the Ref-2DSHA.

Image of FIG. 3.
FIG. 3.

Photoresponsivity of the QDIP-2DSHA (solid-square trace) and the Ref-QDIP (dashed-diamond trace) at different biases at the sample temperature of 77 K. The photoresponsivity of the QDIP-2DSHA (solid square trace) shows over 100% enhancement at all biases.

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/content/aip/journal/apl/98/21/10.1063/1.3593128
2011-05-25
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A Fano-type interference enhanced quantum dot infrared photodetector
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/21/10.1063/1.3593128
10.1063/1.3593128
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