Optical Radiation Detectors and Radiometers
Improved detector technology in the past two decades opened a new era in the field of optical radiation measurements. An increased number of calibration and measurement facilities and procedures could be developed with lower measurement uncertainties using the newly developed detector/radiometer standards instead of traditionally applied source standards (blackbodies and lamps). Shrinking of the traditional source-based calibrations and the large increase of optical detector-based calibrations motivated the writing of this book series.
The book series is a comprehensive description of optical detector based radiometric practices. Instead of giving the traditional lexical type tutorial information, a research-based material is systematically organized and described. The large number of examples cover modern detector applications in the field of radiometry, photometry, colorimetry, and radiation temperature measurements. All the discussed devices and applications have been implemented, realized, tested, verified, and evaluated. These applications are described to obtain uniform results with low measurement uncertainties. They are described with enough details to successfully repeat them by the readers/users. The applications and evaluations follow the recommendations of international standardization. The described subjects are detailed and distributed in five volumes.
Properties of radiometric quality detectors, their use and selection for optical radiometers, design considerations of radiometers and detector-based standards, description of spectral and broadband detector-based calibrations and measurements using modern setups based on the new radiometer standards are described for practicing scientists, engineers, and technicians.
The book series includes many hundreds of designs, drawings, measurement schemes, a large number of detector-based measurement and calibration setups, measurement equations and results, calibration-transfer and measurement methods/procedures all tested in practical applications.
In addition to reference level detector/radiometer calibrations, measurement of radiometric quantities used in practice (secondary laboratory and field applications), are discussed. Such quantities are radiant power, irradiance, and radiance. Measurement of spectral and broadband (integrated) quantities are discussed from 200 nm in the ultraviolet to 30 micrometers in the infrared.
All discussed calibrations and measurements are traceable to the System International (SI) units through National Measurement Institutes (NMIs) and/or the discussed intrinsic detector standards.
Linear and traceable measurement of detector output signals, including DC and AC photocurrent (sub-scale) and voltage measurements, detector-amplifier gain-calibrations, and gain-linearity tests are discussed in detail.
Uncertainty determination/calculation methods of detector-based measurements are described. It is a general rule for the discussed large number of design and application examples, to keep the calibration/measurement uncertainties low.
The author thanks all the colleagues listed in the references at the end of each volume for their help and contribution to perform the discussed large number of measurements and evaluations.
- Dr. George P Eppeldauer, author
Dr George P. Eppeldauer retired from the US National Institute of Standards and Technology (NIST) in October 2019, having previously served as Project Leader of Detector Metrology. During his career, he developed standard optical radiometers, photometers, colorimeters, and radiation thermometers, and realized detector responsivity based scales. He was the lead-author and editor of the NIST Technical Notes #1438 and #1621, and he received the Gold Medal Award from the US Department of Commerce in 2010 for developing SIRCUS, the highest accuracy reference spectral-responsivity calibration facility of NIST. He is the author of 198 articles and book-chapters.
