@article{wang_fang_mao_jing_li_2019, title={Extremely Asymmetrical Acoustic Metasurface Mirror at the Exceptional Point}, volume={123}, ISSN={["1079-7114"]}, DOI={10.1103/PhysRevLett.123.214302}, abstractNote={Previous research has attempted to minimize the influence of loss in reflection- and transmission-type acoustic metasurfaces. This Letter shows that, by treating the acoustic metasurface as a non-Hermitian system and by harnessing loss, unconventional wave behaviors that do not exist in lossless metasurfaces can be uncovered. Specifically, we theoretically and experimentally demonstrate a non-Hermitian acoustic metasurface mirror featuring extremely asymmetrical reflection at the exception point. As an example, the metasurface mirror is designed to have high-efficiency retroreflection when the wave comes from one side and near-perfect absorption when the wave comes from the opposite side. This work marries conventional gradient index metasurfaces with the exceptional point from non-Hermitian systems, and it paves the way for identifying new mechanisms and functionalities for wave manipulation.}, number={21}, journal={PHYSICAL REVIEW LETTERS}, author={Wang, Xu and Fang, Xinsheng and Mao, Dongxing and Jing, Yun and Li, Yong}, year={2019}, month={Nov} }
 @misc{assouar_liang_wu_li_cheng_jing_2018, title={Acoustic metasurfaces}, volume={3}, ISSN={["2058-8437"]}, DOI={10.1038/s41578-018-0061-4}, abstractNote={Acoustic metasurfaces derive their characteristics from the interaction between acoustic waves and specifically designed materials. The field is driven by the desire to control acoustic wave propagation using compact devices and is governed by fundamental and physical principles that provide the design rules and the functionality of a wave. Acoustic metasurfaces have added value and unusual functionalities compared with their predecessor in materials science, namely, acoustic metamaterials. These rationally designed 2D materials of subwavelength thickness provide a new route for sound wave manipulation. In this Review, we delineate the fundamental physics of metasurfaces, describe their different concepts and design strategies, and discuss their functionalities for controllable reflection, transmission and extraordinary absorption. In particular, we outline the main designs of acoustic metasurfaces, including those based on coiling-up space, Helmholtz-resonator-like and membrane-type structures, and discuss their applications, such as beam focusing, asymmetrical transmission and self-bending beams. We conclude with an outlook of the future directions in this emerging field. Sound waves can be manipulated using structurally designed 2D materials of subwavelength thickness. This emerging field, namely, acoustic metasurfaces, is driven by the desire to control acoustic wave propagation using compact devices.}, number={12}, journal={NATURE REVIEWS MATERIALS}, author={Assouar, Badreddine and Liang, Bin and Wu, Ying and Li, Yong and Cheng, Jian-Chun and Jing, Yun}, year={2018}, month={Dec}, pages={460–472} }
 @article{overcash_li_griffing_rice_2007, title={A life cycle inventory of carbon dioxide as a solvent and additive for industry and in products}, volume={82}, ISSN={["0268-2575"]}, DOI={10.1002/jctb.1747}, abstractNote={Abstract}, number={11}, journal={JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY}, author={Overcash, Michael and Li, Yong and Griffing, Evan and Rice, Gareth}, year={2007}, month={Nov}, pages={1023–1038} }