Company Filing History:
Years Active: 2022-2025
Title: Innovations of Yangjian Cai in Optical Physics
Introduction
Yangjian Cai is a prominent inventor based in Suzhou, China. He has made significant contributions to the field of optical physics, particularly in the area of vortex beams and polarization states. With a total of 7 patents, his work has garnered attention for its innovative approaches and practical applications.
Latest Patents
One of his latest patents is titled "Method and apparatus for measuring topological charge of partially coherent fractional vortex beam." This invention involves a partially coherent fractional vortex beam passing through a scattering object. An optimization algorithm is utilized to minimize the error between measurable information and the to-be-measured information. The main electric field mode and weight of the fractional vortex beam are reconstructed using a multimode stacked diffraction algorithm. The invention calculates a cross-spectral density function of the partially coherent fractional vortex beam, reconstructing the cross-spectral density of the optical field. This process allows for the accurate measurement of the topological charge of the fractional vortex beam under low coherence conditions.
Another notable patent is the "Method and system for generating a robust higher-order Poincaré sphere polarization state." This invention provides a method for loading vortex phases into fully coherent vector beams, modulating them into left- and right-handed circularly polarized modes on a Poincaré sphere. The method synthesizes these modes into a vector polarized light beam, generating a polarization matrix of the Poincaré sphere. It also involves reducing the degree of spatial coherence of the polarized light and extracting polarization information, which is then transmitted to obtain a robust higher-order Poincaré sphere polarization state.
Career Highlights
Yangjian Cai is affiliated with Soochow University, where he continues to advance research in optical physics. His work has not only contributed to academic knowledge but also has potential applications in various technological fields.
Collaborations
He has collaborated with notable colleagues, including Yahong Chen and Fei Wang, further enhancing the impact of his research through teamwork and shared expertise.
Conclusion
Yangjian Cai's innovative patents and research in optical physics demonstrate his significant contributions to the field. His work on vortex beams and polarization states showcases the potential for advancements in technology and science.