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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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