SWIR Cameras white papers and application notes

  1. Foreign Object Detection In Food Inspection And Sorting

    Food inspection, in connection with automated sorting and classification methods has become a major field of application for advanced image capture systems and infrared cameras. This case study tells how Xenics' line scan SWIR camera Lynx is used for copmlex imaging tasks.

  2. Short-Wave Infrared Temporal Multiplexing For Cost-Effective Multispectral Solutions

    Temporal multiplexing is an alternative approach to hyperspectral imaging that uses a fast LED technology. Instead of broadband illuminating and diffracting the spectrum of light in the camera, a broadband sensitive chip is used, and the illumination spectrum is varied over time via fast triggering.

  3. Why SWIR And InGaAs Are Useful

    Sensing in the shortwave infrared (SWIR) range (wavelengths from 0.9 to 1.7 microns) has been made practical by the development of indium gallium arsenide (InGaAs) sensors. This white paper covers the importance of using InGaAs technologies in SWIR applications.

  4. Short-Wave Infrared Cameras In Semiconductor Inspection Applications

    This white paper discusses several applications of SWIR (short-wave infrared) cameras within semiconductor inspection applications, especially those that rely on the capability of SWIR cameras to see through semiconductor materials, such as silicon.

  5. Short-Wave Infrared Adaptive Optics And Applications

    This article introduces adaptive optics and the benefits of using (short-wave) infrared cameras in wavefront sensing for applications including astronomy, laser communication, biological imaging microcopy, and retinal imaging in combination with optical coherence tomography.

  6. SWIR Camera Utilized In Cutting Edge Tornado Research

    A team of researchers at Purdue University’s Earth, Atmospheric, and Planetary Sciences Department recently tested the practicality of using shortwave infrared (SWIR) imaging for improving the detection of poorly-visible tornadoes in supercell thunderstorms. 

  7. Understanding High Performance SWIR Imaging Cameras

    The use of imaging systems for capturing long wavelength photons continues to increase in many diverse application areas including life sciences, security and surveillance, non-destructive testing, quality control and astronomy.  This white paper discusses the performance of InGaAs detector arrays with sensitivities in the VIS-SWIR region.

  8. Silicon Wafer Alignment With SWIR Cameras

    Since InGaAs cameras are sensitive from 900 nm to 1800 nm in the Short Wave Infra-Red (SWIR) range, they are very valuable when monitoring wafer bonding. In the SWIR spectrum, pure silicon is transparent at room temperature, while heavily doped silicon becomes more and more opaque as the temperature increases over 200°C. Imaging wafer plates using modern SWIR allows for extremely precise alignment thanks to their high sensitivity, speed, and ease of use.

  9. Laser-Gated Imaging

    Laser-gated imaging is a technique for night vision that detects and recognizes targets at long range without the need for any natural light sources. This article discusses its general principles, as well as the advantages of imaging in different spectral bands in visible and infrared light.

  10. SWIR And The U-2

    The U-2 spy plane is the leading reconnaissance platform for the United States. The camera used in today’s U-2, SYERS, uses electronic sensors to see in both the mid-wave infrared (MWIR) band (thermal energy) and the short wave infrared (SWIR) band (reflected light).