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    Optical packaging of photonic integrated circuits: bottlenecks and potential solutions
    Rodrigo Rendeiro, Hugo Neto, Diogo Vaz, Carla Rodrigues, Heming Wei, Jan Nedoma, Antonio Teixeira, Francisco Rodrigues, Carlos Marques
    2026, 2(3): 260006. DOI: 10.29026/oet.2026.260006
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    Recent progress on mid-infrared and terahertz dual-comb spectroscopy
    Zhuoren Wan, Min Li, Binbin Liu, Yu Xia, Yuan Chen, Xiuxiu Zhang, Dongxu Zhu, Yan Dai, Sinan Tao, Hua Li, Ming Yan, Heping Zeng
    2026, 2(3): 260015. DOI: 10.29026/oet.2026.260015
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    Multiple degrees-of-freedom optical encryption via pixel-resolved vectorial holography
    Jianzhong Peng, Haoxian Zhou, Mengzhe Shen, Dapeng Wang, Yu Chen, Renlong Zhang, Fangrui Lin, Xiaoyu Weng, Junle Qu
    2026, 2(3): 260018. DOI: 10.29026/oet.2026.260018
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    Nearly vertically emitted nonlinear light sources with high efficiencies enabled by high-Q nearly-degenerate polygon modes
    Chuntao Li, Yingnuo Qiu, Renhong Gao, Lingling Qiao, Jielei Ni, Min Wang, Jintian Lin, Ya Cheng
    2026, 2(3): 260011. DOI: 10.29026/oet.2026.260011
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    Laser direct writing of nonlinear metasurfaces on phase-change material Ge2Sb2Te5 for enhanced third harmonic generation
    Lanpeng Guo, Haochong Liu, Shixin Gao, Ming Tang, Minghui Hong, Tun Cao
    2026, 2(3): 260017. DOI: 10.29026/oet.2026.260017
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    Neural holography enabled multi-beam steering for multi-task classifier
    Lin Wu, Mian Wu, Zhen Li, Ying Qiu, Zichen Liu, Yongquan Zeng, Guozhen Liang, Hanbing Li, Guoxing Zheng, Zhixue He, Xi Xiao, Qi Jie Wang, Jin Tao, Shaohua Yu
    2026, 2(3): 260019. DOI: 10.29026/oet.2026.260019
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