Description:  The top image shows a pair of crystals bending a laser beam at a negative angle, and the bottom image shows the same pair bending a beam at a positive angle. The blue and green lines are laser beams. The red line is perpendicular to the crystal seam.
Source:  National Renewable Energy Laboratory
Story:  Crystal bends light back
TRN November 5/12, 2003
TRN Categories:  Optical Computing, Optoelectronics and Photonics; Materials Science and Engineering; Physics
Form:  Still

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