清华大学电子工程系微纳光电子学实验室欢迎您! 中文
返回

Study on “Ultraspectral Imaging Based on Metasurfaces with Freeform Shaped Meta-Atoms” was published in Laser & Photonics Reviews

The paper "Ultraspectral Imaging Based on Metasurfaces with Freeform Shaped Meta-Atoms" by PhD student Jiawei Yang and others was published in Laser & Photonics Reviews (IF 13.138), on May 20, 2022 ( https://doi.org/10.1002/lpor.202100663).

Optical metasurfaces can flexibly manipulate the phase, amplitude, polarization, spectrum and other parameters of light. However, meta-atoms, or unit cells, of metasurfaces are conventionally designed using regular shapes, limiting the improvement of the performance. Following our previous work of the world-first real-time ultraspectral imaging chip published in Optica, our group proposed an novel ultraspectral imaging chip based on metasurfaces with freeform shaped meta-atoms in this work, which can break through the design limitation of regular shapes and expand the design space of metasurfaces. The metasurface modulation units based on freeform shaped meta-atoms possess more abundant Bloch modes, which improves the diversity of the transmission spectra, and further improves the spectral reconstruction accuracy and spectral resolution. The reconstruction results of broadband spectra and narrowband spectra show that the proposed ultraspectral imaging chip can achieve the reconstruction of broadband spectra with a fidelity over 99% and a wavelength resolution of 0.5 nm, and the standard deviation of central wavelength deviations for narrowband spectral reconstruction is only 0.024 nm. This work further improves the performance of metasurface-based spectral imaging chips, and promotes their development and applications in the field of real-time sensing.

 图片2.png

Jiawei Yang, Kaiyu Cui,* Xusheng Cai, Jian Xiong, Hongbo Zhu, Shijie Rao, Sheng Xu, Yidong Huang,* Fang Liu, Xue Feng, and Wei Zhang, Ultraspectral Imaging Based on Metasurfaces with Freeform Shaped Meta-Atoms. Laser & Photonics Reviews 2022, 2100663. https://doi.org/10.1002/lpor.202100663


2022年05月21日

News

Faculty members of our lab. attended and gave invited talks at the 13th International Conference on Information Optics and Photonics (CIOP2022)2022-08-11

Optoelectronic Industry Summit Forum – “The Future of Optoelectronic Chip” Closed with Success2022-08-07

H-Chip Tech completed factory construction of phase II optoelectronic chip industrialization project2022-08-02

Prof. Yidong Huang was invited to visit YanDong Mirco-Electronics Co., Ltd2022-07-31

Prof. Wei Zhang and Associate Prof. Xue Feng were invited to give a presentation at the "Forum on Photonic Integrated Circuits 2022 ".2022-07-28

Congratulations to Jian Xiong on his Outstanding PhD Thesis Award of Tsinghua University2022-07-21

"Key fabrication process and application of micro-nano structure optoelectronic chip" passed scientific and technological achievement appraisal 2022-07-17

Congratulations to Prof. Kaiyu Cui on becoming a Bingkun Zhou Scholar of the Department of Electronic Engineering, Tsinghua University2022-07-07

Warmly congratulate the 4 students on receiving their doctor's/master's degrees2022-06-28

Professor Yidong Huang and Ph. D students gave talks in the Conference on Laser and Electro-Optics 2022 (CLEO2022) 2022-05-22

Study on “Ultraspectral Imaging Based on Metasurfaces with Freeform Shaped Meta-Atoms” was published in Laser & Photonics Reviews2022-05-21

Di Qu, PhD graduate of our lab in 2012, was interviewed by Tianjin Daily -- Tianjin people's innovation and entrepreneurship in the past decade 2022-05-20

H-Chip Tech Group completed the second phase of donation and established professional scholarships2022-05-17

H-Chip Tech Group completed B round financing of nearly RMB 100 million2022-05-12

Prof. Fang Liu delivered an invited speech on ACS Photonics in China online summit2022-05-10