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3 years ago in Optics , Physics By Krishnadas
Waves and light beams can bend without diffraction. What are potential applications?
The theoretical physics behind these "shape-preserving" beams is clear, but as an engineer, I'm motivated by application. I see potential in microscopy and optical trapping, but those are established. I'm curious about the next frontier—what are the emerging, perhaps unconventional, applications in fields like telecommunications, material processing, or medical therapy that are currently pushing this research forward?
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By Usha K Answered 2 years ago
From my experience in applied photonics, the drive goes far beyond basic trapping. I see tremendous potential in several areas. First, in high-resolution volumetric microscopy, Bessel beams can image deeper into scattering tissue with less background. Second, in laser material processing, they can create clean, high-aspect-ratio channels or cuts because the beam doesn't spread, maintaining intensity over a longer depth. For LIDAR and free-space communications, these beams are more resilient to obstruction and turbulence. Perhaps most intriguing is their use in optical coherence tomography and even novel approaches to optical data storage, where the non-diffracting property allows writing or reading in 3D volumes with greater precision
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