All articles tagged with #circularly polarized light
Originally Published 4 months ago — by Nature
The article reports the first use of circularly polarized attosecond pulses to study and control chiral electron dynamics in molecules, revealing attosecond-scale control over photoelectron circular dichroism (PECD) and photoionization delays, with implications for understanding chiral phenomena and applications in spintronics and biosensing.
Originally Published 2 years ago — by Interesting Engineering
Researchers at Los Alamos National Laboratory have developed a low-cost and reliable technique to produce circularly polarized light, a specific type of photon crucial for quantum data exchange and encryption. By stacking two atomically thin materials, the team was able to "twist" photons in a predictable manner, eliminating the need for external magnetic fields or complex nanoscale structures. This breakthrough could pave the way for more accessible and efficient quantum communication technologies.
Originally Published 2 years ago — by Phys.org
Researchers from Kobe University have developed a nano-antenna that utilizes dielectric nanoparticles to create a near field of circularly polarized light. This technique enhances the circularly polarized light-selective response of chiral molecules, which has applications in chirality analysis and asymmetric photochemical reactions for biomolecules, chemical substances, and pharmaceuticals. The nano-antenna preserves the helicity of incident circularly polarized light, resulting in improved circular dichroism and increased efficiency in light-molecule interactions. The developed nanoparticle solution also has potential for controlling light polarization.
Originally Published 2 years ago — by Nature.com
Researchers have developed helical polymers that can detect dissymmetric circularly polarized light, which has potential applications in optoelectronics and photodetection. The polymers were designed with alternating donor-acceptor units that induce a helical structure, allowing them to interact with circularly polarized light in a chiral manner. The researchers demonstrated the ability of the polymers to detect circularly polarized light in the near-infrared region, which is important for applications such as telecommunications and biological imaging.