Chargesensitive Infrared Phototransisotrs Ultrasensitive Detectors In The Wavelength Range Of 550M

• doi: 10.1109/SENSORDEVICES.2010.35
• title: Charge-Sensitive Infrared Phototransisotrs: Ultra-sensitive Detectors in the Wavelength Range of 5-50µm
• publisher: IEEE
• isbn: 978-0-7695-4094-8
• issn:
• partnum: 10PR4094
• rank: 1929
• access_type: LOCKED
• content_type: Conferences
• abstract: Novel ultrasensitive detectors in the wavelength range of λ = 5-50 μm have developed. The detectors are charge-sensitive infrared phototransistors (CSIPs) fabricated in GaAs/AlGaAs double quantum well structures. The devices serve as a phototransistor capable of counting single photons, while a function is similarly to CMOS image sensors. The excellent noise equivalent power (NEP = 6.8x10-19 W/Hz1/2) and specific detectivity (D* = 1.2 x 1015 cmHz1/2/W) are demonstrated for λ = 14.7 μm, which are by a few orders of magnitude superior to those of the other state-of-the-art detectors. These figures of merit persist up to 23K. Temperature dependence of the performance is studied and wavelength range expansion is attempted. The simple planar structure of CSIPs is feasible for array fabrication including future monolithic integration with reading circuits.
• article_number: 5632197
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5632197
• html_url: https://ieeexplore.ieee.org/document/5632197/
• abstract_url: https://ieeexplore.ieee.org/document/5632197/
• publication_title: 2010 First International Conference on Sensor Device Technologies and Applications
• conference_location: Venice, Italy
• conference_dates: 18-25 July 2010
• publication_number: 5628547
• is_number: 5632098
• publication_year: 2010
• publication_date: 18-25 July 2010
• start_page: 151
• end_page: 156
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 92
• insert_date: 20101111
• index_terms:
  • ieee_terms:
    • Photonics
    • Detectors
    • Gallium arsenide
    • Logic gates
    • Crystals
    • Temperature dependence
    • Temperature sensors
  • author_terms:
    • far IR
    • THz
    • single-photon detector
    • temperature dependence
    • wavelength range expansion
  • dynamic_index_terms:
    • Wavelength Range
    • Range Of Wavelengths
    • Ultrasensitive Detectors
    • Specific Detection
    • Phototransistor
    • Double Quantum
    • Noise Equivalent Power
    • Positively Charged
    • Science And Technology
    • Electron Density
    • Dynamic Range
    • Heterostructures
    • Heterojunction
    • Short Wavelength
    • Shorter Wavelengths
    • Quantum Efficiency
    • Photon Flux
    • Photon Flux Density
    • Measurement Period
    • Restrictive Temperature
    • Temperature Limit
    • Diffraction Grating
    • Diffraction Orders
    • Capacitive Coupling
    • AC-coupled
    • Electrostatic Coupling
    • Layer Spacing
    • Barrier Layer
    • Thermionic Emission
    • Richardson Constant
• isbn_formats:
  • format: CD, value: 978-0-7695-4094-8, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4244-7474-5, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4244-7473-8, isbnType: New-2005
• authors:
  • Author Name: Takeji Ueda
    Affiliation: Department of Basic Science, University of Tokyo, Meguro, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37343968400
    ID: 37343968400
    Order: 1
    Author Affiliations:
    • Department of Basic Science, University of Tokyo, Meguro, Tokyo, Japan
  • Author Name: Susumu Komiyama
    Affiliation: Department of Basic Science, University of Tokyo, Meguro, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37299420000
    ID: 37299420000
    Order: 2
    Author Affiliations:
    • Department of Basic Science, University of Tokyo, Meguro, Tokyo, Japan

Image Sensor

• sensor_type: Charge-sensitive Infrared Phototransistor (CSIP)
• resolution: Single-photon counting
• dynamic_range: >106
• pixel_size: N/A
• dark_current: 0.5 s-1 (Γ)

Optical Data

• focal_length: N/A
• aperture: N/A
• field_of_view: N/A
• distortion: N/A

Performance Metrics

• frame_rate: N/A
• signal_to_noise_ratio: N/A
• sensitivity: Quantum efficiency (initially η=2%, improved to 7%)
• shutter_speed: N/A
• power_consumption: N/A
• noise: NEP = 6.8x10^-19 W/Hz1/2

Applications & Benefits

• cell_imaging: Single-photon detection enables passive imaging of living bio-cells without alteration.
• benefits: Ultrasensitivity, higher temperature operation, extremely wide dynamic range, potential for array fabrication and monolithic integration with reading circuits.

Supporting Organizations

• supported_by: Japan Science and Technology Agency (JST)

Manuscript Details

• publication_date: 18-25 July 2010

Relevancy Score

• score: 10
• missing_fields:
  • performance metrics like actual resolution, pulse frequency, readout speed, specific SNR, power consumption, fill factor

Processed JSON Filename

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