Quantum efficiency of plasmonic-coupled quantum dot infrared photodetectors for single-color detection: The upper limit of plasmonic enhancement

S. C. Lee; J. H. Kang; Q. Park; S. Krishna; S. R.J. Brueck

doi:10.1364/OE.386844

Quantum efficiency of plasmonic-coupled quantum dot infrared photodetectors for single-color detection: The upper limit of plasmonic enhancement

S. C. Lee, J. H. Kang, Q. Park, S. Krishna, S. R.J. Brueck

Department of Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We report a measurement of the quantum efficiency for a surface plasma wave (SPW)coupled InAs/In_0.15Ga_0.85As/GaAs dots-in-a-well (Dwell) quantum dot infrared photodetector (QDIP) having a single-color response at ∼10 µm. A gold film perforated with a square array of complex, non-circular apertures is employed to manipulate the near-fields of the fundamental SPW. The quantum efficiency is quantitatively divided into absorption efficiency strongly enhanced by the SPW, and collection efficiency mostly independent of it. In the absorption efficiency, the evanescent near-fields of the fundamental SPW critically enhances QDIP performance but undergoes the attenuation by the absorption in the Dwell that ultimately limits the quantum efficiency. For the highest quantum efficiency available with plasmonic coupling, an optimal overlap between Dwell and SPW near-fields is required. Based on experiment and simulation, the upper limit of the plasmonic enhancement in quantum efficiency for the present device is addressed.

Original language	English
Pages (from-to)	7618-7633
Number of pages	16
Journal	Optics Express
Volume	28
Issue number	5
DOIs	https://doi.org/10.1364/OE.386844
Publication status	Published - 2020 Mar 2

Bibliographical note

Publisher Copyright:
© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OE.386844

Cite this

@article{aff04b33b6c041fba12dcb464e763ada,

title = "Quantum efficiency of plasmonic-coupled quantum dot infrared photodetectors for single-color detection: The upper limit of plasmonic enhancement",

abstract = "We report a measurement of the quantum efficiency for a surface plasma wave (SPW)coupled InAs/In0.15Ga0.85As/GaAs dots-in-a-well (Dwell) quantum dot infrared photodetector (QDIP) having a single-color response at ∼10 µm. A gold film perforated with a square array of complex, non-circular apertures is employed to manipulate the near-fields of the fundamental SPW. The quantum efficiency is quantitatively divided into absorption efficiency strongly enhanced by the SPW, and collection efficiency mostly independent of it. In the absorption efficiency, the evanescent near-fields of the fundamental SPW critically enhances QDIP performance but undergoes the attenuation by the absorption in the Dwell that ultimately limits the quantum efficiency. For the highest quantum efficiency available with plasmonic coupling, an optimal overlap between Dwell and SPW near-fields is required. Based on experiment and simulation, the upper limit of the plasmonic enhancement in quantum efficiency for the present device is addressed.",

author = "Lee, {S. C.} and Kang, {J. H.} and Q. Park and S. Krishna and Brueck, {S. R.J.}",

note = "Publisher Copyright: {\textcopyright} 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.",

year = "2020",

month = mar,

day = "2",

doi = "10.1364/OE.386844",

language = "English",

volume = "28",

pages = "7618--7633",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "5",

}

TY - JOUR

T1 - Quantum efficiency of plasmonic-coupled quantum dot infrared photodetectors for single-color detection

T2 - The upper limit of plasmonic enhancement

AU - Lee, S. C.

AU - Kang, J. H.

AU - Park, Q.

AU - Krishna, S.

AU - Brueck, S. R.J.

PY - 2020/3/2

Y1 - 2020/3/2

N2 - We report a measurement of the quantum efficiency for a surface plasma wave (SPW)coupled InAs/In0.15Ga0.85As/GaAs dots-in-a-well (Dwell) quantum dot infrared photodetector (QDIP) having a single-color response at ∼10 µm. A gold film perforated with a square array of complex, non-circular apertures is employed to manipulate the near-fields of the fundamental SPW. The quantum efficiency is quantitatively divided into absorption efficiency strongly enhanced by the SPW, and collection efficiency mostly independent of it. In the absorption efficiency, the evanescent near-fields of the fundamental SPW critically enhances QDIP performance but undergoes the attenuation by the absorption in the Dwell that ultimately limits the quantum efficiency. For the highest quantum efficiency available with plasmonic coupling, an optimal overlap between Dwell and SPW near-fields is required. Based on experiment and simulation, the upper limit of the plasmonic enhancement in quantum efficiency for the present device is addressed.

AB - We report a measurement of the quantum efficiency for a surface plasma wave (SPW)coupled InAs/In0.15Ga0.85As/GaAs dots-in-a-well (Dwell) quantum dot infrared photodetector (QDIP) having a single-color response at ∼10 µm. A gold film perforated with a square array of complex, non-circular apertures is employed to manipulate the near-fields of the fundamental SPW. The quantum efficiency is quantitatively divided into absorption efficiency strongly enhanced by the SPW, and collection efficiency mostly independent of it. In the absorption efficiency, the evanescent near-fields of the fundamental SPW critically enhances QDIP performance but undergoes the attenuation by the absorption in the Dwell that ultimately limits the quantum efficiency. For the highest quantum efficiency available with plasmonic coupling, an optimal overlap between Dwell and SPW near-fields is required. Based on experiment and simulation, the upper limit of the plasmonic enhancement in quantum efficiency for the present device is addressed.

UR - http://www.scopus.com/inward/record.url?scp=85080935454&partnerID=8YFLogxK

U2 - 10.1364/OE.386844

DO - 10.1364/OE.386844

M3 - Article

C2 - 32225986

AN - SCOPUS:85080935454

SN - 1094-4087

VL - 28

SP - 7618

EP - 7633

JO - Optics Express

JF - Optics Express

IS - 5

ER -

Quantum efficiency of plasmonic-coupled quantum dot infrared photodetectors for single-color detection: The upper limit of plasmonic enhancement

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this