Dr. Heather J. Patrick is a physicist in the Sensor Science Division at NIST. She manages and conducts reflectance calibrations for stakeholders in government, industry, and academia and carries out research on reflectance and scattering of optical materials. Dr. Patrick is the project lead on ROSI (the Robotic Optical Scattering Instrument) and the Reference Integrating Sphere, the national reference instruments for specular, bidirectional, and diffuse reflectance in the ultraviolet to short-wave infrared spectral range. She is a Senior Member of SPIE, the international society for optics and photonics, serves as the NIST liaison to the Council for Optical Radiation Measurements (CORM), and is the recipient of a NIST Judson C. French award for advancing reflectance measurement technology through the development of ROSI.