High-performance cryogenic detectors for maximum measurement precision
VIGO Photonics’ cooled HgCdTe photoconductor detectors are optimized for wavelengths of 14 µm, 16 µm, and 19 µm. They were specifically developed for FTIR spectroscopy and other demanding measurement applications that require high detectivity in the long-wave infrared range. The performance parameters needed for these applications can often only be achieved through cryogenic cooling, for example using liquid nitrogen at 77 K.
VLWIR detection at the highest level
The detectors are available either as a Dewar assembly or in a flatpack housing, enabling flexible integration into dedicated measurement setups. Depending on the configuration, they cover long-wave spectral ranges extending into the VLWIR region and provide high sensitivity combined with stable noise characteristics. Large active areas, AR-coated windows, and minimized fringing effects ensure precise, reproducible signal processing – even under challenging measurement conditions.
Markets & Applications
- Scientific spectroscopy and laboratory measurement technology
- Gas analysis and environmental monitoring
- Industry, process control, and quality assurance
- Safety and sensor technology
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Features
- Cutoff wavelength: 17.4 µm, 18.1 µm, or 20.0 µm
- Window with anti-reflective coating (AR) for optimized transmission
- Detectivity up to 1.9×10¹⁰ cm·Hz¹ᐟ²/W (8@ 77 K); 1/f corner frequency typically <1 kHz for low-noise applications
- Voltage responsivity up to over 500 V/W (depending on model)
- Resistance 25 Ω to 50 Ω
- Optimized for 77 K operation with stable bias current of 15 mA
- Power handling: up to 100 W/cm² (CW) or 1 MW/cm² (<1 µs pulses)
- Active area: 1×1 mm², optional 0.25×0.25 mm²
- Acceptance angle ~50°
Benefits
- High sensitivity for weak signals
- Anti-fringing solutions for minimal background noise
- Epitaxy and assembly within the EU for flexible manufacturing according to customer specifications
Datasheets
LASER COMPONENTS Germany - Your competent partner for optical and optoelectronic components in Germany.
Welcome to LASER COMPONENTS Germany GmbH, your expert for photonics components. Each product in our wide range of detectors, laser diodes, laser modules, optics, fiber optics, and more is worth every Euro (€/EUR). Our customized solutions cover all conceivable areas of application: from sensor technology to medical technology. You can reach us here:
Werner-von-Siemens-Str. 15
82140 Olching
Deutschland
Phone: +49 8142 2864-0
Email: info(at)
