Jiaqi Yang

Age-dependent non-visual and visual performance of OLED smart phone display and optimization

Jiaqi Yang, 廖全全, Ziquan Guo

Gallium oxide: A potentially photonic material

Yongqi Yang, Peng Chen, Qi Cheng, Zhe Long et autres

We fabricated Er3+/Yb3+ codoped Ga2O3 thin films via radio frequency magnetron sputtering and investigated the effect of annealing temperature and Ar/O2 gas ratio on the luminescent properties of the films. The results show that the fluorescence intensity of the film can be …

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Frequency-discrete narrow-linewidth semiconductor laser generation technology for precision spectroscopy

Xiaojuan YAN, Huang Xin-cheng, Zhang Zi-Hao, Ziwei Cheng et autres

针对高精度激光光谱技术对窄线宽与高频率定标精度的双重需求，本文提出一种基于光学反馈的频率离散窄线宽半导体激光器方案。该方案基于光学反馈将半导体激光器频率锁定于高精细度光学超稳腔，并结合电流扫描，实现了频率以腔自由光谱范围为步长的阶跃式激光输出。实验测得激光线宽由自由运转时的1.31MHz被压窄到3.93kHz。在周期性扫描中，绝对频率重复性平均标准差优于1.69 MHz。在锁定条件下，激光长期频率漂移控制在17.27MHz/24h。该激光器兼具光频梳的频率标定能力与传统扫描激光的简易探测优势，即其离散频率阶跃为光谱测量提供了精确的横轴标尺，而时域串行输出模式仅需单点探测器即可完成探测，显著降低了系统复杂度与成本。本研究为低成本、易集成的高灵敏度光谱传感系统提供了极具前景的光源解决方案。

Experimental Study on the Fracture Characteristics of Paraffin-Based Phase Change Material–Mixed Soil

Donghai Liu, Ziru Ma, Jiaqi Yang

The paraffin-based phase change material (PPCM) has provided a novel solution to the antifreezing and temperature control of core wall soil. However, as a new filling material for dam core walls, the PPCM-mixed soil (PS) may increase the brittleness and the risk …

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High Quality Factor, High Sensitivity Ta 2 O 5 Microring Resonator for Biochemical Sensing

Zheng Zhang, Peng Chen, Zhe Long, Qi Cheng et autres

We demonstrate a high-performance Ta.O. microring resonator fabricated using electron-beam lithography and inductively coupled plasma etching. The loaded Q-factor of the fundamental TE mode reaches 3.1 × 105at 1550 nm under ambient conditions, with post-annealing at 600$^{\circ }$C further elevating this value …

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Silicon-Based On-Chip Light Sources: A Review

Jiaqi Yang, Shuyan Zhang, Zhen Yang, Shengchuang Bai et autres

Silicon-based on-chip light sources are important since they can provide a compact solution for various applications in the field of high-speed optical communications, high-precision sensing, quantum information processing, and so on. We review the progress of silicon-based on-chip light sources in various …

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Terahertz polarization modulator based on chiral metasurface integrated with vanadium dioxide

Li Luo, Ling Hui Zhou, Yuxin Zou, Jiaqi Yang et autres

Conventional optical polarization modulation depends on block birefringent devices, and currently there are still no commercial polarization modulation devices available for terahertz beams in free space. Metasurfaces present more opportunities for the manipulation of optical and terahertz waves, which are advantageous for …

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Author response for "Spin-multiplexed phase and amplitude manipulations of terahertz waves based on chiral metasurfaces"

Luo Li, Jialuo Ding, Yuxin Zou, Yuanyuan Lv et autres

Identification of key taste and nutrient components in 12 blueberry varieties using widely targeted metabolomics

Xu Xie, Yuehua Wang, Xin Guo, Zhen Cheng et autres

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Comparison of Ignition Control Techniques in HCCI Engines from Theoretical and Practical Perspectives

Jiaqi Yang

Homogeneous Charge Compression Ignition (HCCI) is a cutting-edge combustion engine technology that merges the benefits of both diesel and gasoline engines. In HCCI engines, a uniform mixture of fuel and air enters the combustion chamber during the intake phase, which significantly lowers …

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Theoretical study of 14CO2 spectrum measurement technology based on sub-Doppler wm-NICE-OHMS

Yong Li, ZHOU Xiaobin, Gang Zhao, Jiaqi Yang et autres

The massive emission of greenhouse gases, particularly CO2, has led to severe damage to the Earth’s ecological environment and poses a threat to human health. Many countries have therefore proposed policies to curb the greenhouse effect. Carbon monitoring is a critical prerequisite …

Exploration of influencing factors on ion cyclotron resonance isotope separation process

Kai Guo, Jiaqi Yang

The ion cyclotron resonance (ICR) isotope separation method is an advanced electromagnetic separation method. The key process of this method is the transport of ions in an axial magnetic field. By injecting microwaves at the target ion cyclotron frequency, only the target …