The object
Kristina M. Johnson invented polarization-control technologies that manipulate light within optical components used for communications, imaging and display systems. Her engineered liquid-crystal and optoelectronic hardware made optical signals more controllable and supported practical, high-performance photonic devices.
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What Kristina did
Invented polarization-control technologies for optical communications and imaging components.
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Why it matters
Johnson’s polarization-control inventions earned National Inventors Hall of Fame recognition for their contribution to optical technology.
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Living-status check
President Biden awarded Johnson the National Medal of Technology and Innovation in January 2025.