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Taking Measure

Just a Standard Blog

Howard Yoon

Howard Yoon has spent the past 25 years thinking about how to measure light more accurately, 19 of them as a researcher in NIST’s Optical Radiation Group. His work improves standards that make it possible to use light as a measurement tool. His favorite wavelength of light is 650 nanometers, the wavelength historically used for optically determining the temperatures of metals.

Howard Yoon with the NIST standard of spectral irradiance, a bright light, well-calibrated light bulb..

Lighting the Way Toward Better Measurements

January 15, 2016

As a physicist who explores ways to measure light more accurately, it should come as no surprise that I’m fascinated by even common optical phenomena that we

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About this blog

Taking Measure is the official blog of the National Institute of Standards and Technology (NIST).

It provides a behind-the-scenes look at NIST’s research and programs, covering a broad range of science and technology areas. Through this blog, NIST’s researchers and staff share why they do what they do and how today’s research will lead to tomorrow’s innovations.

The views presented here are those of the author and do not necessarily represent the views or policies of NIST.

If you have any questions about our blog or reprint requests, please contact us at takingmeasure [at] nist.gov (takingmeasure[at]nist[dot]gov).