A silent two-photon imaging system for studying in vivo auditory neuronal functions Silent two-photon imaging is demonstrated with non-mechanical AOD scanners. Video-rate recordings in auditory cortex of awake marmoset monkeys reveal neuronal functions at unprecedented low sound levels. Xindong SongYueqi GuoXiaoqin Wang Article Open Access 14 Apr 2022 Interacting plexcitons for designed ultrafast optical nonlinearity in a monolayer semiconductor We demonstrate that plexcitons in monolayer semiconductors sustain giant nonlinearity at room temperature and thus very hopeful to realize the practical implementation of polaritonic devices. Yuxiang TangYanbin ZhangTian Jiang Article Open Access 14 Apr 2022 High-performance polarization management devices based on thin-film lithium niobate This work successfully demonstrates that thin-film lithium niobate platform can bring polarization management devices into a new phase of that higher speed, smaller size, and lower cost. Zhongjin LinYanmei LinXinlun Cai Article Open Access 13 Apr 2022 A novel approach for designing efficient broadband photodetectors expanding from deep ultraviolet to near infrared Nan DingYanjie WuHongwei Song Article Open Access 11 Apr 2022 Revealing the nature of optical activity in carbon dots produced from different chiral precursor molecules Using different chiral precursor molecules, we produced chiral CDs with superior optical properties, such as two-photon absorption, high photoluminescence quantum yield reaching 57%, and chiral signals in the UV-Vis spectral region. Ananya DasEvgeny V. KundelevAndrey L. Rogach Article Open Access 11 Apr 2022 Spatial modulation of nanopattern dimensions by combining interference lithography and grayscale-patterned secondary exposure Wafer-scale fabrication of periodic nanostructures with spatially modulated feature sizes is achieved by combining interference lithography and grayscale-patterned secondary exposure, opening new pathways toward large-area nanophotonic devices. Zhuofei GanHongtao FengWen-Di Li Article Open Access 08 Apr 2022 Real-time molecular imaging of near-surface tissue using Raman spectroscopy A fiber optic probe-based Raman imaging system with real-time molecular virtual reality data visualization of chemical boundaries for clinical tissue-boundary demarcation. Wei YangFlorian KnorrIwan W. Schie