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Author: yuqin zong

Displaying records 21 to 30 of 33 records.
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21. Development of a Bolometer Detector System for the NIST High Accuracy Infrared Spectrophotometer
Series: Journal of Research (NIST JRES)
Published: 11/1/1998
Authors: Yuqin Zong, Raju Vsnu Datla
Abstract: A bolometer detector system is developed for the high accuracy infrared spectropho-meter at the National Institute of Standards and Technology (NIST) to provide maximum sensitive, spatial uniformity and linearity of response covering the entire infra ...

22. High Quality Broadband Brewster's Angle Reflective Polarizer for Infrared Applications
Published: 1/1/1998
Authors: D J Dummer, Simon Grant Kaplan, Leonard M Hanssen, A S Pine, Yuqin Zong

23. Spatial Uniformity Comparison of Two Non-Imaging Concentrators
Published: 1/1/1997
Authors: Joseph Paul Rice, Yuqin Zong, D J Dummer

24. A Novel Stray Light Correction Method for Array Spectrometers
Published: Date unknown
Authors: Yuqin Zong, Steven W Brown, Keith R Lykke, Yoshihiro Ohno

25. Characterization and Correction of Stray Light in Optical Instruments
Published: Date unknown
Authors: Yuqin Zong, Steven W Brown, G Meister, R Barnes, Keith R Lykke
Abstract: Improperly imaged, or scattered, optical radiation within an instrument is difficult to properly characterize and is often the dominant residual source of measurement error. Scattered light can originate from the spectral components of a point sour ...

26. Correction of Stray Light In Spectroradiometers and Imaging Instruments
Published: Date unknown
Authors: Yuqin Zong, Steven W Brown, Keith R Lykke, Yoshihiro Ohno
Abstract: Measurement errors from stray light, spectral or spatial, are inevitable and are often the dominant source of error in spectroradiometers and imaging radiometers/photometers. We have developed a simple matrix method for correcting spatial stray light ...

27. Correction of Stray Light in Spectrographs: Implications for Remote Sensing
Published: Date unknown
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno
Abstract: Spectrographs are used in a variety of applications in the field of remote sensing for radiometric measurements due to the benefits of measurement speed, sensitivity, and portability. However, spectrographs are single grating instruments that are su ...

28. Detector-Based Integrating Sphere Photometry
Published: Date unknown
Authors: Yoshihiro Ohno, Yuqin Zong
Abstract: A new luminous flux calibration facility using a 2.5 m integrating sphere has been developed at NIST. The Absolute Integrating-Sphere Method, developed for realization of the lumen in 1995, has been applied to routine calibration measurements of lum ...

29. Evaluation of a Portable Hyperspectral Imager for Medical Imaging Applications
Published: Date unknown
Authors: David W Allen, Maritoni Abatayo Litorja, Steven W Brown, Joseph Paul Rice, Yuqin Zong
Abstract: Portable hyperspectral imagers are becoming commonly available as a commercial product. A liquid crystal tunable filter based CCD imager was evaluated and characterized for spectral stray light using a tunable laser facility. The hyperspectral imag ...

30. LED Photometric Calibrations at the National Institute of Standards and Technology and Future Measurement Needs of LEDs
Published: Date unknown
Authors: Carl C Miller, Yuqin Zong, Yoshihiro Ohno

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