Tag

Structured Light

All articles tagged with #structured light

science-and-technology1 year ago•3 min saved

"Novel Technique for Distortion-Free Manipulation of Structured Light Developed by Researchers"

Researchers have developed a method to correct aberrated light coming out of a noisy environment by pairing it with another unstructured beam of light that experienced the same aberration. Using difference frequency generation in a nonlinear crystal, the structured beam is automatically restored without the need for knowledge of the aberration, enabling a nonlinear form of adaptive optics that works at the speed of light. This breakthrough has the potential to be integrated into systems for diverse applications, such as communications, imaging, and optical trapping, and also allows for communication and detection with different wavelengths.

via Phys.org|

#adaptive-optics #light-manipulation #nonlinear-optics

science-and-technology2 years ago•2 min saved

"Revolutionary Method Captures Structured Light Instantly"

Researchers have developed a new measurement technique using on-axis Kramers-Kronig interferometry to retrieve the spectrum of orbital angular momentum (OAM) in structured light waves. By applying the Kramers-Kronig relation, they were able to untangle the complex helical light pattern from intensity-only measurements, enabling single-shot retrieval in interferometry. This breakthrough has the potential to revolutionize technologies that rely on structured light, such as communication, imaging, and quantum information processing. The technique is simpler, faster, and more cost-effective than conventional methods, providing a powerful means to measure and understand OAM in structured light fields.

via Phys.org|

#advanced-photonics #interferometry #measurement-technique

technology2 years ago•2 min saved

Structured light enables noise-free communication, say researchers.

Researchers at the University of the Witwatersrand have developed a new optical communication protocol that exploits spatial patterns of light for multi-dimensional encoding in a manner that does not require the patterns to be recognized, thus overcoming the prior limitation of modal distortion in noisy channels. The result is a new encoding state-of-the-art of over 50 vectorial patterns of light sent virtually noise-free across a turbulent atmosphere, opening a new approach to high-bit-rate optical communication.

via Phys.org|

#multi-dimensional-encoding #noise-free-communication #optical-communications