Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Geyang Qu"'
Autor:
Feng Mei, Geyang Qu, Xinbo Sha, Jing Han, Moxin Yu, Hao Li, Qinmiao Chen, Ziheng Ji, Jincheng Ni, Cheng-Wei Qiu, Qinghai Song, Yuri Kivshar, Shumin Xiao
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-6 (2023)
Abstract We introduce a new paradigm for generating high-purity vortex beams with metasurfaces. By applying optical neural networks to a system of cascaded phase-only metasurfaces, we demonstrate the efficient generation of high-quality Laguerre-Gaus
Externí odkaz:
https://doaj.org/article/0adbbf228e354367bd2118e6c6c8f9cf
Autor:
Yaniv Eliezer, Geyang Qu, Wenhong Yang, Yujie Wang, Hasan Yılmaz, Shumin Xiao, Qinghai Song, Hui Cao
Publikováno v:
Light: Science & Applications, Vol 10, Iss 1, Pp 1-11 (2021)
A special type of laser enables precise and continuous tuning of spatial coherence, suppressing the coherent artifacts (i) of a meta-hologram while maintaining image sharpness, emission spectrum and power (ii).
Externí odkaz:
https://doaj.org/article/54e4ace86510427280009d824259abca
Autor:
Geyang Qu, Wenhong Yang, Qinghai Song, Yilin Liu, Cheng-Wei Qiu, Jiecai Han, Din-Ping Tsai, Shumin Xiao
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-5 (2020)
Here, the authors demonstrate a re-programmable metasurface that can produce arbitrary holographic images for optical encryption. The encrypted information is divided into two matrices and defined to the incident laser to produce arbitrary holographi
Externí odkaz:
https://doaj.org/article/39f149b2606f4e27ba47262a0e8dbe93
Autor:
Wenzhao Sun, Yilin Liu, Geyang Qu, Yubin Fan, Wei Dai, Yuhan Wang, Qinghai Song, Jiecai Han, Shumin Xiao
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Integration of III-V semiconductor microlasers into modern Si or Si3N4 based photonic integrated circuits remains a challenge. Here, the authors demonstrate a perovskite vortex microlaser with highly directional outputs and well-controlled topologica
Externí odkaz:
https://doaj.org/article/568f52e4bbcc454c8901f72d747182f5
Publikováno v:
Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-8 (2018)
Abstract Self-assembled organic-inorganic CH3NH3PbI3 perovskite microwires (MWs) upon humidity exposure along several weeks were investigated by photoluminescence (PL) spectroscopy, Raman spectroscopy, and X-ray diffraction (XRD). We show that, in ad
Externí odkaz:
https://doaj.org/article/7b618fa87bb44ad0a110ce42475351f9
Autor:
Wenzhao Sun, Yilin Liu, Geyang Qu, Yubin Fan, Wei Dai, Yuhan Wang, Qinghai Song, Jiecai Han, Shumin Xiao
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-1 (2021)
Externí odkaz:
https://doaj.org/article/cea5c22e37934d7a8e639e1a1aa0b997
Autor:
Jiaping Cheng, Xinbo Sha, Hui Zhang, Qinmiao Chen, Geyang Qu, Qinghai Song, Shaohua Yu, Shumin Xiao
Publikováno v:
Nano letters. 22(10)
On-chip integrated orbital angular momentum (OAM) sorting is of great importance in tackling the severe challenge of exponential growth in data traffic. Despite the continuous success, current demultiplexing techniques either scarify efficiency drama
Autor:
Shumin Xiao, Din Ping Tsai, Jiecai Han, Qinghai Song, Cheng-Wei Qiu, Wenhong Yang, Yilin Liu, Geyang Qu
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-5 (2020)
Nature Communications
Nature Communications
Meta-holographic encryption is a potentially important technique for information security. Despite rapid progresses in multi-tasked meta-holograms, the number of information channels available in metasurfaces is limited, making meta-holographic encry
Autor:
Shumin Xiao, Yuhan Wang, Qinghai Song, Jiecai Han, Wei Dai, Geyang Qu, Yilin Liu, Wenzhao Sun, Yubin Fan
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Nature Communications
Nature Communications
Lead halide perovskite microlasers have been very promising for versatile optoelectronic applications. However, most perovskite microlasers are linearly polarized with uniform wavefront. The structured laser beams carrying orbital angular momentum ha
Autor:
Yilin Liu, Geyang Qu, Xiong Jiang, Jing Han, Ziheng Ji, Zhengtong Liu, Qinghai Song, Shaohua Yu, Shumin Xiao
Publikováno v:
Laser & Photonics Reviews. :2200712