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Articles by Lien Hu
Analysis of Different Early Strength Agents on the Performance of Prefabricated UHPC
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Compact all-fiber light-induced thermoelastic spectroscopy for gas sensing
Abstract To overcome the limitations of size, optical alignment, and integration into photonic circuits in previous light-induced thermoelastic spectroscopy (LITES) using free-space optics, a compact all-fiber LITES was proposed for gas sensing. A hollow-core photonic crystal fiber was employed as a waveguide and a microcapillary gas cell simultaneously. A single-mode fiber (SMF) tip was employed to guide light on the quartz tuning fork (QTF) surface.
Quartz tuning fork embedded off-beam quartz-enhanced photoacoustic spectroscopy
Abstract In order to achieve a high acoustic coupling strength and detection sensitivity and to simplify the assembly and alignment process in quartz-enhanced photoacoustic spectroscopy (QEPAS) technique, a novel quartz tuning fork (QTF) embedded off-beam QEPAS (E-OB-QEPAS) spectrophone was proposed. The structural parameters of the acoustic micro-resonator of the E-OB-QEPAS spectrophone were optimized for enhancing the signal-to-noise ratio gain based on experimental investigation.
Near-infrared C2H2/CH4 dual-gas sensor system combining off-axis integrated-cavity output spectroscopy (OA-ICOS) and frequency-division-multiplexing-based wavelength modulation spectroscopy (FDM-WMS)
Near-infrared C2H2/CH4 dual-gas sensor system combining off-axis integrated-cavity output spectroscopy (OA-ICOS) and frequency-division-multiplexing-based wavelength modulation spectroscopy (FDM-WMS) Kaiyuan Zheng, Chuan-Tao Zheng, Dan Yao, Lien Hu, Zidi Liu, Junhao Li, Yu Zhang, Yi-Ding Wang and Frank Tittel Abstract By combining frequency division multiplexing assisted wavelength modulation spectroscopy (FDM-WMS) and off-axis integrated-cavity output spectroscopy (OA-ICOS), a near-infrared...
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