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Upconversion photoluminescence appears to shine polarized and brighter

Upconversion photoluminescence appears to shine polarized and brighter
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Yuri Kivshar , Ziwei Feng , Junjie Li , Xiangping Li , Lan Deng Jinan University , Yuri Kivshar Australian National University , Junjie Li Institute Of Physics , Tan Shi , Guangzhou Geng , Zi Lan Deng , Jinan University , Australian National University ,

Arbitrary polarization conversion dichroism metasurfaces for full Poincaré sphere polarizers


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IMAGE: a, Schematic of the proposed all-in-one polarizer that can function at an arbitrary position on the Poincaré sphere by design based on a dielectric metasurface composed of dimerized nanopillars, which.
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Credit: by Shuai Wang, Zi-Lan Deng, Yujie Wang, Qingbin Zhou, Xiaolei Wang, Yaoyu Cao, Bai-Ou Guan, Shumin Xiao, Xiangping Li
Polarization control is essential for tailoring light-matter interactions and is the foundation for many applications such as polarization imaging, nonlinear optics, data storage, and information multiplexing. A linear polarizer, which is a polarization optical element that filters a specific linear polarization from unpolarized light, plays an important role in both polarization generation and manipulation. However, the generation of arbitrary polarization states other than linear polarization usually requires cascading of multiple optical polarization elements, including both linear polarizers and wavepla ....

Xiangping Li , Institute Of Photonics Technology , Jinan University , Light Science , Zi Lan Deng , Guangdong Provincial Key Laboratory , Optical Fiber Sensing , Photonics Technology , Chemistry Physics Materials Sciences , நிறுவனம் ஆஃப் ஃபோட்டானிக்ஸ் தொழில்நுட்பம் , ஜினன் பல்கலைக்கழகம் , ஒளி அறிவியல் , ஜி லான் டெங் , குவாங்டாங் மாகாண விசை ஆய்வகம் , ஒளியியல் ஃபைபர் உணர்தல் , ஃபோட்டானிக்ஸ் தொழில்நுட்பம் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் ,