Laser beams can be made to form dark as well as bright intensity helices, or corkscrews of light. Scientists have now shown that forming dark helices can have considerable advantages over employing their commonly considered bright cousins.
Laser beams can be made to form dark as well as bright intensity helices, or corkscrews of light. Scientists have now shown that forming dark helices can have considerable advantages over employing their commonly considered bright cousins.