PCAS/PVAS InAs/InAsSb Superlattice Detectors

Product number: SW11682

Manufacturer: Vigo System

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Product information "PCAS/PVAS InAs/InAsSb Superlattice Detectors"

1.6-10.5 µm; Active Area 0.01, 1 mm²; Responsivity 0.04-4.4 A/W; Detectivity 1.2x10⁸-9.0×10⁹ cm·Hz^1/2/W; Resistance 28-5,000 Ω; Package TO39, TO8

Vigo System develops and produces a variety of MWIR and LWIR type II superlattice (T2SL) photoconductive (PC, PCAS series) and photovoltaic (PV, PVAS series) IR detectors, operating at room temperature or thermoelectrically cooled. These detectors achieve excellent parameters without cryogenic cooling (LN2). They do not contain mercury or cadmium and are complying with the RoHS Directive.

The PCAS series of InAs/InAsSb type II superlattice photoconductive IR detectors contains 2-stage (PCAS-2TE series) or 3-stage (PCAS-3TE series) thermoelectrically (TE) cooled detectors with excellent parameters. Photoconductive detectors should operate in optimum bias voltage and current readout mode. Performance at low frequencies is reduced due to 1/f noise.

A 3° wedged zinc selenide anti-reflection (AR) coated window (wZnSeAR) prevents unwanted interference effects. Some models additionally feature anti-reflection (AR) coating applied to the active element. For detection of CW radiation, the use of an optical chopper system is recommended.

The PVAS series of InAs/InAsSb type II superlattice photovoltaic IR detectors contains uncooled or 2-stage (PVAS-2TE series) thermoelectrically (TE) cooled detectors with excellent parameters. The PVAS-2TE series features a 3° wedged sapphire window (wAl2O3) preventing unwanted interference effects.

Key Features:

Active Element Material: Epitaxial InAs or InAsSb Superlattice Hetereostructure
Wide Spectral Range: 1.6 µm to 10.5 μm
High Responsivity
Excellent Linearity
Cut-on Wavelength λcut-on (10%): 1.6 to ≤2.0 μm ±0.2 (±0.5) µm
Peak Wavelength λpeak: 4.0 to 11.0 μm ±0.3 (±0.5) µm
Cut-off Wavelength λcut-off (10%): 5.8 to 15.0 μm ±0.3 µm
Detectivity D*: ~1.2x10⁸ to ~9.0×10⁹ cm·Hz^1/2/W (λpeak)
Current Responsivity Ri(λpeak): ~0.04 to ~4.4 A/W
Time Constant τ: ~3 to ~17 ns
Resistance R: ~28 Ω to ~5,000 Ω
Environmentally Friendly, Complying With the RoHS Directive
No Bias Required (PVAS Series)
Bias Voltage Vb (PCAS Series): 0.5, 0.6 V Typ.
No 1/f Noise (PVAS Series)
1/f Noise Corner Frequency fc (PCAS Series): 20 to 300 kHz Typ.
Uncooled, Room Temperature Operation or 2-Stage / 3-Stage Thermoelectrically (TE) Cooled Versions
Active Element Temperature Tdet: ~210 ,~230 K (TE-cooled Versions)
Size of Active Area A: 0.1×0.1 mm², 1x1 mm²
Acceptance Angle Φ: ~70°, ~90°
Package: TO39, TO8
Infrared Windows: None, wZnSeAR, wAl2O3

Applications: Industrial; Medical; Automotive; Environmental; Laser Power Control and Calibration; Gas Analysis; Mid-IR Spectroscopy; Gas Leak Detection; Air Quality Analysis; Water Quality Control; Engine Emission Monitoring and Control; Fuel Quality Assessment; Analysis of Temperature Distribution; Railway Transport Safety; Plastic Sorting; Security and Defense

Manufacturer "Vigo System"

Vigo System is a world-leading manufacturer of uncooled infrared (IR) photon detectors. Vigo System’s origins go back to a team of researchers at the Military University of Technology in Warsaw, Poland, that developed a special technique for manufacturing detectors operating without cryocooling. The company’s unique position on the market is confirmed by the status of an official supplier of subassemblies for NASA, resulting in Vigo System detectors being installed on the Curiosity rover exploring the surface of Mars. With its headquarters located near Warsaw, Poland, Vigo System provides a broad portfolio of photoconductive and photovoltaic IR detectors based on materials like HgCdTe (MCT) or InAs/InAsSb. Further detector product ranges offered by Vigo System are superlattice detectors or IR detector arrays. Beyond the detector components, various series of selected line or configurable line infrared (IR) detection modules are available, providing the infrared photodetector integrated with signal processing electronics, optics, heat dissipation systems and other components in a common package.

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PVMQ/PCQ HgCdTe (MCT) Infrared Detector Arrays

2-12 µm; Active Area 1 mm²; Responsivity ≥0.002 A/W; Detectivity ≥9.0×106-≥2.0×107 cm·Hz1/2/W; Resistance 30-≤240 Ω; Package TO8 Vigo System’s PVMQ and PCQ series comprise of HgCdTe (MCT) infrared (IR) detectors whose active surface consists of more than two elements. The offer includes quadrant geometry detectors based on photodiodes and photoconductors, ideally suited for defense and security applications as well as XY or differential measurements. PVMQ and PCQ are 2 µm to 11 μm uncooled, ambient temperature IR detectors, based on sophisticated HgCdTe heterostructures for the best performance and stability. These quadrant detectors consist of four separate active elements arranged in a quadrant geometry and optimized for maximum performance at 10.6 μm. The main application of PVMQ/PCQ detectors is laser beam profiling and positioning. PVMQ is a photovoltaic multiple junction quadrant IR detector, while PCQ is a photoconductive quadrant IR detector. The PCQ detector should operate in optimum bias voltage and current readout mode, and its performance at low frequencies is reduced due to 1/f noise. Key Features: Active Element Material: Epitaxial HgCdTe Heterostructure Wide Spectral Range: 2 to 12 μm Optimal Wavelength λopt: 10.6 μm Active Area: up to 4×4 mm2 No Bias Required (PVMQ) No 1/f Noise (PVMQ) Long Lifetime and MTBF (PCQ) Stability and Reliability Short Time Constant τ: ≤1.5 ns (PVMQ), ≤5 ns (PCQ) Operation From DC to High Frequency (PVMQ) Sensitive to IR Radiation Polarisation (PVMQ) Uncooled, Room Temperature Operation Detectivity D*: ≥1.9x107, ≥2.0x107 cm·Hz1/2/W (λpeak, 20 kHz), ≥9.0×106, ≥1.0×107 cm·Hz1/2/W (λopt, 20 kHz) Active Area A of Single Element: 1×1 mm² Distance between Elements: 20 µm, 200 µm Current Responsivity Ri(λopt): ≥0.002 A/W (PVMQ) Current Responsivity-Active Area Length Product Ri(λopt)·L: ≥0.001 A·mm/W (PCQ) Resistance R: 30 to ≤240 Ω Acceptance Angle Φ: ~70° Package: TO8 Window: None Applications: Laser Beam Profiling and Positioning; Defense & Security; XY or Differential Measurements; Industrial; Medical; Automotive; Environmental; Laser Power Control and Calibration; Gas Analysis; Mid-IR Spectroscopy; Gas Leak Detection; Air Quality Analysis; Water Quality Control; Engine Emission Monitoring and Control; Fuel Quality Assessment; Analysis of Temperature Distribution; Railway Transport Safety; Plastic Sorting

Product number: SW11683

Manufacturer: