Artray ARTCAM-131TNIR InGaAs Near-Infrared Camera

Overview

The Artray ARTCAM-131TNIR is a high-sensitivity, thermoelectrically cooled InGaAs near-infrared camera engineered for precision spectral imaging and quantitative radiometric measurement in the 900–1700 nm wavelength band. Based on a monolithic 640 × 512 pixel InGaAs focal plane array (FPA), it leverages low-noise analog signal conditioning and 14-bit digitization to deliver stable, repeatable response across demanding industrial, scientific, and R&D applications. Unlike silicon-based sensors, the InGaAs photodiode architecture provides intrinsic quantum efficiency exceeding 70% across its operational range—enabling reliable detection of weak NIR emissions from semiconductor inspection, laser beam profiling, optical coherence tomography (OCT) reference arms, and hyperspectral line-scan systems. Its compact, sealed housing supports integration into vacuum-compatible or vibration-sensitive optical benches without compromising thermal stability.

Key Features

• High quantum efficiency InGaAs sensor with extended cutoff at 1700 nm, optimized for SWIR photon detection
• Integrated thermoelectric (Peltier) cooler maintaining sensor temperature within ±0.1 °C for dark current suppression and long-exposure stability
• GigE Vision or USB3 Vision interface options—fully compliant with GenICam standard for seamless integration with HALCON, OpenCV, and LabVIEW environments
• Onboard non-uniformity correction (NUC) and real-time bad-pixel replacement, configurable via SDK
• Factory-calibrated radiometric response curve traceable to NIST-traceable reference sources
• Robust aluminum alloy housing with C-mount lens interface and optional M42 or F-mount adapters
• Low power consumption (<3.5 W active), suitable for embedded or portable NIR imaging platforms

Sample Compatibility & Compliance

The ARTCAM-131TNIR is designed for non-contact, non-destructive NIR imaging of optically translucent or scattering media—including silicon wafers, polymer films, biological tissue sections, and pharmaceutical tablet coatings. It complies with IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emissions) for industrial environments. While not certified for medical device use per FDA 21 CFR Part 820 or ISO 13485, its radiometric calibration protocol aligns with ASTM E1256-22 (Standard Test Methods for Radiation Thermometers) for relative intensity mapping. For GLP/GMP-aligned workflows, raw image metadata includes timestamp, exposure time, sensor temperature, and gain settings—supporting audit-ready data provenance when paired with compliant acquisition software.

Software & Data Management

Artray provides a cross-platform SDK (Windows/Linux/macOS) supporting C/C++, Python (via ctypes bindings), and MATLAB interfaces. The included Artray Capture Studio enables live histogram analysis, region-of-interest (ROI) statistics, multi-frame averaging, and export to TIFF, HDF5, or CSV formats with embedded EXIF-style metadata. All firmware and SDK versions are version-controlled and archived for reproducibility; release notes document calibration updates and known limitations per revision. The SDK supports trigger-in/trigger-out synchronization for gated acquisition and external laser pulse alignment—critical for time-resolved reflectance measurements in material characterization labs.

Applications

• Semiconductor metrology: Wafer defect mapping, dopant distribution visualization, and photoluminescence imaging of GaAs/InP substrates
• Laser diagnostics: M² measurement, beam centroid tracking, and spatial mode analysis of fiber-coupled 1064 nm, 1310 nm, and 1550 nm sources
• Pharmaceutical QA: Coating thickness uniformity assessment of controlled-release tablets using NIR transmission imaging
• Art conservation science: Underdrawing revelation and pigment identification beneath varnish layers in historical paintings
• Agricultural research: Water stress detection in leaf tissue via 1450 nm and 1900 nm absorption band ratio analysis (requires appropriate bandpass filtering)
• Thermal imaging adjunct: Quantitative emissivity-corrected surface temperature estimation for materials with known spectral emissivity profiles in the SWIR band

FAQ

Is the ARTCAM-131TNIR suitable for continuous wave (CW) laser beam profiling?
Yes—its linear response over five decades of irradiance and sub-millisecond exposure control enable accurate CW beam width, ellipticity, and peak intensity quantification when used with calibrated neutral density filters.
Does the camera support hardware triggering with microsecond-level jitter?
Yes—GigE Vision implementation includes IEEE 1588 Precision Time Protocol (PTP) support and hardware trigger latency <10 µs RMS, verified under load with oscilloscope validation.
Can I perform absolute radiometric calibration in-house?
The factory calibration is provided as a lookup table (LUT) per pixel; users may extend calibration using NIST-traceable blackbody sources and follow ISO/IEC 17025-compliant procedures—but Artray does not supply recalibration services outside warranty.
What is the maximum recommended integration time for low-light imaging?
At −10 °C sensor temperature, usable exposures range from 10 µs to 1 s; beyond 500 ms, dark current shot noise dominates, requiring frame subtraction or correlated double sampling techniques.
Is the SDK compatible with Python 3.9+ and NumPy 1.22+?
Yes—the Python bindings are tested against official CPython distributions and include type hints, error propagation, and memory-safe array handling via buffer protocol compliance.