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About Group

The Photometry and Radiometry Group establishes national measurement standards for luminous intensity (cd) and radiation temperature (K) as well as for optical materials and the optical communications field. In addition, the group develops and disseminates measurement standards and technologies for these fields. Armed with highly advanced measurement standard technology, the group offers calibration, testing, and performance evaluation services that are vital for key national industries such as lighting and optical communications. Furthermore, the group is also responsible for developing key measurement standard technology for advanced industries such as aerospace, materials, display technology, and quantum computing.

Current R&D Projects

  • 1 Development of evaluation technology for newly emerging optical sensors
  • 2 Development of measurement standard technology based on optical materials for Earth observation purposes
  • 3 Development of mid-infrared lasers
  • 4 Development of key measurement technologies for optics industry

Recent R&D Highlights

  • Establishment of world-class pQED-based spectral responsivity scale in visible range
  • Development of measurement technique for detection efficiency of photon counting detectors in the wavelength range of (250 ~ 1600) nm
  • Development of color perception metrology and its application for international standardization action
  • Establishment of absolute radiation temperature scale based on a 650 nm-band absolute radiation thermometer
  • Development of mid-IR spectral total reflectance standard in the wavelength range of (2.5 ~ 12) μm
  • Development of 3 μm-band tunable continuous-wave light source

About Other Groups

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