Physics-Current Event #1

Physics-Current Event #1 - Physics 2 October, 2009...

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Physics 2 October, 2009 Parabolic Light In Physics Today, I was able to find an article about light and how it can curve. The article, "Throwing Light for a Curve", measures the displacement of an ultra-intense laser pulse and compares it to its distance. A physicist, Pavel Polynkin, and his colleagues conducted research by putting "a new twist on filaments." This "new twist" simply means that this study is different than the rest because the beams in earlier studies were axially symmetric, and this study was conducted using axially asymmetric beams. When this change occurred, it caused the light to form a "two-dimensional airy function." This two-dimensional beam is actually graphed and identified as "parabolic." A parabolic function is a function where a parabola forms causing the image to make a "U" shape. Parabolic functions either continue on in a negative or positive direction eternally depending upon which way they are reflected over the x axis. After the parabolic light beams were observed, they seemed to be reminiscent of projectile motion. The
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Physics-Current Event #1 - Physics 2 October, 2009...

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