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学者姓名：王璞
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Abstract ：
In this work, we introduced a fully fiber-integrated 2 mu m thulium-doped laser system and conducted parametric analysis and mechanism studies on myocardial tissue ablation using this laser. Fresh porcine myocardial tissue served as the model, allowing precise adjustment of laser power (1.0-3.0 W) and scanning speed (1-2.5 mm/s). Ablation experiments were conducted under controlled conditions, assessing ablation morphology, thermal damage, element distribution, chemical composition, and pathology. Finite element models for temperature fields and ablation theory were established. Simulation results indicated a significant influence of laser parameters on ablation outcomes. Controllable ablation was achieved by adjusting parameters. Experimental results showed a maximum ablation depth of 0.55 mm, an ablation area of 4.07 mm2, and a minimal thermal damage area of 1.02 mm2. This study provides insights into parameter optimization and ablation mechanisms, confirming the potential of a 2 mu m thulium-doped picosecond laser for precise and minimally invasive cardiac interventions. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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| GB/T 7714 | Cao, Siyuan , Zhao, He , Xia, Tong et al. Mechanism analysis of 2 μm thulium-doped picosecond laser ablation on myocardial tissue in minimizing thermal injury [J]. | OPTICS EXPRESS , 2025 , 33 (5) : 10419-10433 . |
| MLA | Cao, Siyuan et al. "Mechanism analysis of 2 μm thulium-doped picosecond laser ablation on myocardial tissue in minimizing thermal injury" . | OPTICS EXPRESS 33 . 5 (2025) : 10419-10433 . |
| APA | Cao, Siyuan , Zhao, He , Xia, Tong , Liu, Ang , Pan, Shengli , Zhang, Qian et al. Mechanism analysis of 2 μm thulium-doped picosecond laser ablation on myocardial tissue in minimizing thermal injury . | OPTICS EXPRESS , 2025 , 33 (5) , 10419-10433 . |
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Abstract ：
In this study, we demonstrated a few-cycle pulse generation system delivering an 8-fs and 13-nJ pulse. The oscillator of this system is a mode-locked fiber laser based on a nonlinear amplifying loop mirror (NALM), which is injected into the gain management nonlinear (GMN) amplifier after pre-chirp management by a chirped fiber Bragg grating (CFBG) and a passive fiber. Subsequently, a hollow-core photonic bandgap (HC-PBG) fiber is employed to compensate for the dispersion, achieving a pulse duration of 49.8 fs with a pulse energy of 51.8 nJ. Finally, we integrate an ultra-high numerical aperture (UHNA) fiber at the end of the HC-PBG fiber for nonlinear spectral broadening. The resulting spectral range spans from 800 to 1400 nm. Dispersion compensation is achieved using the prism-pair, resulting in a further compression of the pulse duration to 8.2 fs, with a pulse energy of 13.1 nJ and a peak power of 1.59 MW. With an overall system footprint of < 0.1 m(2) and a total volume of < 0.005 m3 , this few-cycle pulse generation system delivers ultra-short pulses with high peak power while maintaining compactness and stability, making it attractive for many applications. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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| GB/T 7714 | Xia, Tong , Zhao, He , Zhu, Shuyuan et al. Generation of 8-fs and 13-nJ pulse from a Yb-fiber system with nonlinear-pulse-compression [J]. | OPTICS EXPRESS , 2024 , 32 (18) : 32396-32407 . |
| MLA | Xia, Tong et al. "Generation of 8-fs and 13-nJ pulse from a Yb-fiber system with nonlinear-pulse-compression" . | OPTICS EXPRESS 32 . 18 (2024) : 32396-32407 . |
| APA | Xia, Tong , Zhao, He , Zhu, Shuyuan , Cao, Siyuan , Chen, Yuhao , Zhang, Penglei et al. Generation of 8-fs and 13-nJ pulse from a Yb-fiber system with nonlinear-pulse-compression . | OPTICS EXPRESS , 2024 , 32 (18) , 32396-32407 . |
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Abstract ：
In this paper, a new scheme for generating a wide gamut of structural colors on the thin-film-stack-based (TFSB) substrates is proposed. The TFSB surfaces consist of titanium/random gold nanoparticles (AuNPs) and titanium/ random gold and copper nanoparticles (Au+CuNPs), which can trigger more resonance absorption and widen the color gamut. The electric fields in two designed structures are simulated, and the results showed that the random distribution of AuNPs and Au+CuNPs enhance the uniform local surface plasmon resonance (LSPR) response. This enhancement is crucial in broadening the coverage of the reflection spectrum, which enables the generation of a wide range of colors, including green and red. The influence of laser parameters on the color of TFSB substrates and tested their durability in terms of time is analyzed. Finally, a color palette and made structural color patterns on TFSB by nanosecond pulsed laser are prepared. The proposed new scheme can be easily fabricated by magnetron sputtering without requiring additional procedures, which can open new perspectives in plasmonic colors. This work demonstrates that the promising potential of methods in creating a wide color gamut on metallic surfaces. Additionally, it serves as a means to store information for the preservation and protection of traditional cultures. A new scheme for generating wide gamut structural colors on the thin-film-stack-based (TFSB) substrates. The random distribution of AuNPs and Au+CuNPs enhance the LSPR response, which is crucial in generating of a wide range of colors. The proposed new scheme can be easily fabricated by magnetron sputtering without requiring additional procedures, which can open new perspectives in plasmonic colors. image
Keyword ：
wide gamut wide gamut nanoparticles nanoparticles composite structures composite structures laser-induced coloration laser-induced coloration surface plasmon surface plasmon
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| GB/T 7714 | Zhao, He , Xia, Tong , Cao, Siyuan et al. Generation of Wide Color Gamut in a Collisional and Magnetized Plasma by Laser-Induced Coloration on Composite Structure Surfaces [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (23) . |
| MLA | Zhao, He et al. "Generation of Wide Color Gamut in a Collisional and Magnetized Plasma by Laser-Induced Coloration on Composite Structure Surfaces" . | ADVANCED OPTICAL MATERIALS 12 . 23 (2024) . |
| APA | Zhao, He , Xia, Tong , Cao, Siyuan , Chen, Yuhao , Zhang, Penglei , Zhang, Qian et al. Generation of Wide Color Gamut in a Collisional and Magnetized Plasma by Laser-Induced Coloration on Composite Structure Surfaces . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (23) . |
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Mid-infrared hollow-core fiber (HCF) gas lasers based on a population inversion regime of gas molecules have made advanced development in recent years, but mostly with single-pass cavity-free structures. Here, we demonstrated a 3.1 mu m high-power acetylene-filled HCF continuous wave (CW) laser and a self-Q-switched pulse laser with a linear- cavity structure. This configuration not only facilitates the transformation of amplified spontaneous emission into the laser output but also enhances the coherence of the light source and imparts distinct cavity mode characteristics. Harnessing a homemade high-power 1535 nm single-frequency fiber laser that served as the pump source, a CW laser output of 8.23 W at 3.1 mu m was achieved, which is over three orders of magnitude higher than those in reported works so far. The corresponding slope efficiency of 31.8% and beam quality of M x 2 = 1.18 and My y 2 = 1.15 were characterized. When the gas pressure was up to 50 mbar, the laser generated a 3.1 mu m self- Q-switched pulse with an output power of 1.98 Was well as a pulse width of 45 ns under the repetition rate of 4.59 MHz. To the best of our knowledge, this is the first time that an HCF gas laser achieves a self-Q-switched pulse. Future studies will aim to further optimize the experimental setup, potentially enabling the direct generation of picosecond pulses in the mid-infrared wavelength band. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
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| GB/T 7714 | Song, Weihua , Zhang, Qian , Zhang, Xin et al. High-power hollow-core fiber gas laser at 3.1 μm with a linear-cavity structure [J]. | OPTICS LETTERS , 2024 , 49 (17) : 4922-4925 . |
| MLA | Song, Weihua et al. "High-power hollow-core fiber gas laser at 3.1 μm with a linear-cavity structure" . | OPTICS LETTERS 49 . 17 (2024) : 4922-4925 . |
| APA | Song, Weihua , Zhang, Qian , Zhang, Xin , Hou, Yubin , Wang, Pu . High-power hollow-core fiber gas laser at 3.1 μm with a linear-cavity structure . | OPTICS LETTERS , 2024 , 49 (17) , 4922-4925 . |
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Abstract ：
Indium selenide (InSe) crystal, as an emerging Van der Waals semiconductor, showed great potential in optical and optoelectronic devices due to its remarkable electron mobility, flexible direct bandgap, and photoresponsivity. Especially, the bulk single-crystalline InSe shows superplastic deformability with the aid of the interlayer gliding and cross-layer dislocation slip. The extraordinary mechanical behavior brings significant opportunities and possibilities to pressure-modulated optical devices, which, however, have not been explored sufficiently. Additionally, InSe crystals are challenged in the rapid large-scale preparation and reproduction due to limitations, such as phase heterogeneity, dissociation risks, and chemical instability. Herein, we proposed a fiber drawing technique to create single-crystalline InSe by the molten core drawing method combined with CO2 laser-induced recrystallization. The fabricated InSe fiber, spanning several meters in length, shows a uniform and directional single-crystalline InSe core encased within a 450 mu m thick protective borosilicate glass cladding. The inherent core-cladding configuration of the InSe fibers not only provides robust protection to the InSe crystals but also seamlessly creates a whispering-gallery-mode microcavity. Utilizing a 532 nm nanosecond pulsed laser as a pump, a tunable lasing from 1076.2 to 1111.8 nm was achieved, dictated by the controlled pressure within the InSe fiber. We present a simple and effective method for single-crystalline InSe fabrication and first achieve a pressure-modulated laser in a near-infrared band based on InSe fiber, heralding an advancement for the scalable, efficient generation of tunable lasers. Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating. image
Keyword ：
pressure-modulated laser pressure-modulated laser Van der Waals semiconductors Van der Waals semiconductors whispering-gallery-mode microcavity whispering-gallery-mode microcavity single-crystalline InSe fibers single-crystalline InSe fibers
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| GB/T 7714 | Xin, Litao , He, Huiyu , Wang, Xiuhong et al. Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating [J]. | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2024 , 107 (9) : 5801-5809 . |
| MLA | Xin, Litao et al. "Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating" . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY 107 . 9 (2024) : 5801-5809 . |
| APA | Xin, Litao , He, Huiyu , Wang, Xiuhong , Cheng, Zhaochen , Zhang, Xin , Pan, Shengli et al. Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2024 , 107 (9) , 5801-5809 . |
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Abstract ：
We demonstrate an all-fiber high-peak-power nanosecond pulse laser operating at 915 nm. The nanosecond pulse laser source is consisting of a 915 nm modulated laser diode and 4-stage Nd-doped fiber amplifiers. A maximum output power of 2.01 W is achieved with a peak power of 2.2 kW. The peak-to-peak fluctuation is less than +/- 0.2 % and the RMS is 0.084 %. Additionally, the beam quality at output power of 2.01 W is measured to be Mx2 = 1.09, My2 =1.08, indicative of excellent beam characteristics in the output signal. To the best of our knowledge, it is the first report about high-peak-power Nd-doped fiber laser at 915 nm based on all-fiber structure. This work provides a good candidate for the Automotive Lidar with high imaging resolution and detection accuracy.
Keyword ：
Nd-doped fiber laser Nd-doped fiber laser All-fiber structure All-fiber structure High peak power High peak power Nanosecond pulse Nanosecond pulse
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| GB/T 7714 | Zhang, Qian , Hou, Yubin , Li, Xiaoli et al. High-peak-power nanosecond pulse laser at 915 nm based on all-fiber structure [J]. | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
| MLA | Zhang, Qian et al. "High-peak-power nanosecond pulse laser at 915 nm based on all-fiber structure" . | OPTICS AND LASER TECHNOLOGY 181 (2024) . |
| APA | Zhang, Qian , Hou, Yubin , Li, Xiaoli , Zhao, He , Wang, Pu . High-peak-power nanosecond pulse laser at 915 nm based on all-fiber structure . | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
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Abstract ：
In this work, we demonstrate numerically and experimentally an all-fiber-integrated gain-managed nonlinear (GMN) amplification system. The seed is a nonlinear amplifying loop mirror (NALM) mode-locked Yb-doped fiber laser with a pulse duration of 8.7 ps. By employing a chirped fiber Bragg grating (CFBG) or a bandpass filter (BPF), the pulse duration of seed is reduced to similar to 1 ps. The pulses are then injected into the Yb-doped fiber amplifier for GMN evolution. Subsequently, hollow-core photonic bandgap (HC-PBG) fibers are employed for dispersion compensation on the amplified pulse. In the BPF-filtered configuration, the entire system accumulates lower higher-order dispersion and is capable of delivering femtosecond pulses with a pulse energy of 163 nJ, a pulse duration of 45 fs, and a peak power of 3.6 MW, all while maintaining a highly favorable beam quality factor (M-2) of 1.05. Compared to previously reported GMN amplification systems, our entire system, which eliminates any sections of free-space optics, is highly attractive due to its ability to enhance stability and compactness, reduce maintenance demands and lower costs. We believe this compact femtosecond fiber laser system, with its ultrashort pulse duration and high peak power, holds potential for applications in scientific research and precision manufacturing.
Keyword ：
Ultrafast lasers Ultrafast lasers All-fiber integrated All-fiber integrated Gain-managed nonlinear amplification Gain-managed nonlinear amplification
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| GB/T 7714 | Xia, Tong , Zhao, He , Cheng, Zhaochen et al. All-fiber integrated gain-managed nonlinear amplification system delivers ultrafast lasers with 3.6 MW peak power and 45 fs pulse duration [J]. | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
| MLA | Xia, Tong et al. "All-fiber integrated gain-managed nonlinear amplification system delivers ultrafast lasers with 3.6 MW peak power and 45 fs pulse duration" . | OPTICS AND LASER TECHNOLOGY 181 (2024) . |
| APA | Xia, Tong , Zhao, He , Cheng, Zhaochen , Hou, Yubin , Zhang, Qian , Cao, Siyuan et al. All-fiber integrated gain-managed nonlinear amplification system delivers ultrafast lasers with 3.6 MW peak power and 45 fs pulse duration . | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
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Abstract ：
本发明提出了一种基于神经网络的空芯反谐振光纤熔接方法，包括以下步骤：(1)构建神经网络模型；(2)获取学习样本；(3)训练神经网络；(4)对空芯反谐振光纤熔接进行建模。该方法选用15输入、2输出的三层BP神经网络；获取的学习样本参数包括空芯反谐振光纤参数、单模光纤参数、熔接机熔接程序参数及对应状态下光纤熔接损耗和熔接点强度；其中单模光纤首先经过处理，与空芯反谐振光纤的外径和模场直径匹配，通过MATLAB中的神经网络工具箱对采样获取的原始样本集进行训练，实现空芯反谐振光纤熔接的建模，克服熔接过程中存在的随机性导致的熔接过程重复率低、普适性差的问题，大幅度提高空芯反谐振光纤熔接的精度与效率。
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| GB/T 7714 | 王璞 , 万双琴 , 张鑫 et al. 一种基于神经网络的空芯反谐振光纤熔接方法 : CN202310164827.5[P]. | 2023-02-26 . |
| MLA | 王璞 et al. "一种基于神经网络的空芯反谐振光纤熔接方法" : CN202310164827.5. | 2023-02-26 . |
| APA | 王璞 , 万双琴 , 张鑫 , 姚静远 , 金宇龙 . 一种基于神经网络的空芯反谐振光纤熔接方法 : CN202310164827.5. | 2023-02-26 . |
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Abstract ：
一种Nd3+掺杂石英光纤预制棒及制备方法涉及稀土掺杂有源光纤预制棒领域。该方法包括(1)将纳米二氧化硅粉末与有机光固化树脂均匀混合得到光固化纳米复合材料。(2)将光固化纳米复合材料注入圆柱形的石英模具中在紫外灯照射下光固化成型，脱模后在600℃下脱脂烧结得到纳米多孔二氧化硅结构。(3)将多孔二氧化硅结构浸泡在含有Nd3+和Al3+的溶液中2～3h后取出，在1100℃及氧气和氦气气氛下干燥除杂。(4)将完成元素掺杂及干燥的多孔二氧化硅结构装入石英管中，经过真空高温烧结致密化和缩棒工艺。本发明无需大型昂贵的设备，在室温下即可通过光固化成型实现不同形状以及不同尺寸的芯棒制备，而且原料成本低、利用率高，极大的提高了效率，降低了制备门槛。
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| GB/T 7714 | 王璞 , 柳锦铭 , 杨晶 et al. 一种Nd3+掺杂石英光纤预制棒及制备方法 : CN202310199715.3[P]. | 2023-03-05 . |
| MLA | 王璞 et al. "一种Nd3+掺杂石英光纤预制棒及制备方法" : CN202310199715.3. | 2023-03-05 . |
| APA | 王璞 , 柳锦铭 , 杨晶 , 何蕙羽 . 一种Nd3+掺杂石英光纤预制棒及制备方法 : CN202310199715.3. | 2023-03-05 . |
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Abstract ：
A yttrium aluminosilicate fiber with a Yb doping concentration of 4.53 wt.% was fabricated by powder-in-tube method, in which the preform core was Yb:YAG ceramic nanopowders synthesized by co-precipitation method. Compared with the method of using YAG crystal rod as fiber core, the fiber composition design can be more flexible and a series of crystal rod processing technology can be circumvented. The absorption coefficient of the Yb-doped YAS fibers was measured 28.4 dB/cm at 976 nm. A single-frequency fiber laser was constructed with the YAS fiber length of 1cm. To our knowledge, this is the first time that rare earth (RE) doped YAS fiber prepared by powder-in-tube method was used in fiber laser. (C) 2022 Optics Publishing Group under the terms of the Optics Open Access Publishing Agreement
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| GB/T 7714 | Qi, Fuxin , Zheng, Baoluo , Yang, Jing et al. Fabrication of yttrium aluminosilicate fibers with high Yb3+ doping from Yb:YAG ceramic nanopowders and its application in single-frequency fiber lasers [J]. | OPTICAL MATERIALS EXPRESS , 2022 , 12 (3) : 876-884 . |
| MLA | Qi, Fuxin et al. "Fabrication of yttrium aluminosilicate fibers with high Yb3+ doping from Yb:YAG ceramic nanopowders and its application in single-frequency fiber lasers" . | OPTICAL MATERIALS EXPRESS 12 . 3 (2022) : 876-884 . |
| APA | Qi, Fuxin , Zheng, Baoluo , Yang, Jing , Liu, Jinming , Li, Biao , Zhang, Xin et al. Fabrication of yttrium aluminosilicate fibers with high Yb3+ doping from Yb:YAG ceramic nanopowders and its application in single-frequency fiber lasers . | OPTICAL MATERIALS EXPRESS , 2022 , 12 (3) , 876-884 . |
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