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Scientists Discover Laser Beams Can Cast Shadows

This unexpected phenomenon challenges fundamental physics concepts and opens new avenues in optics.

  • Researchers used a ruby crystal and a dual laser setup to demonstrate that a laser beam can cast a visible shadow.
  • The experiment showed a green laser beam altering the absorption characteristics of a ruby crystal, blocking a blue laser beam and creating a shadow.
  • This discovery challenges the traditional understanding that light, being massless, cannot cast shadows.
  • The phenomenon, known as reverse saturation of absorption, could have applications in optical computing and precision imaging.
  • Future research will explore other materials and potential industrial applications for this groundbreaking effect.
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