Optical Element Performance (IMAGE)
Caption
These images show the performance of the 1,550-nanometer optical element. The images are light-intensity profiles of the optical field as it appears approximately 185 micrometers above the surface of the optical element. To the left is a simulated light-intensity profile that predicts how the optical element should perform. Note the focal point of light near the center of the image. To the right, an actual light-intensity profile of the optical element, showing that the device does produce a focal point of light at the predicted location. The researchers designed the element to focus light at eight such points at different distances above the element's surface. Scale bar is 10 micrometers.
Credit
Alan Zhan/University of Washington
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