Chinese Optics Letters最新文献

High-sensitivity micro-ring resonator biosensors with a loop mirror structure for detecting alpha-fetoprotein 用于检测甲胎蛋白的环镜结构的高灵敏度微环谐振生物传感器

2区物理与天体物理

Chinese Optics Letters Pub Date : 2025-12-31 DOI: 10.3788/col202624.021302

Yubo Xia, Jiamei Gu, Huiyuan Zhang, Yuxia Song, Songliang Zhang, Xiujing Yan, Mingyu Li, Qiushun Li

引用次数: 0

Low energy consumption and fast electro-optic switching in polymer-confined ferroelectric nematics 聚合物约束铁电向列中的低能耗和快速电光开关

2区物理与天体物理

Chinese Optics Letters Pub Date : 2025-01-01 DOI: 10.3788/col202523.091601

Susanta Chakraborty, Jiayao Ye, Luyao Sun, Jidan Yang, Satoshi Aya, Yanqing Lu, Bingxiang Li

{"title":"Low energy consumption and fast electro-optic switching in polymer-confined ferroelectric nematics","authors":"Susanta Chakraborty, Jiayao Ye, Luyao Sun, Jidan Yang, Satoshi Aya, Yanqing Lu, Bingxiang Li","doi":"10.3788/col202523.091601","DOIUrl":"https://doi.org/10.3788/col202523.091601","url":null,"abstract":"Polymer-embedded liquid crystals (LCs) play a pivotal role in smart applications, enabling precise tunability over electrooptical properties.However, high energy consumption in conventional LC-polymeric systems limits their efficiency in sustainable and environmental protection technologies.Reducing driving voltage without compromising mechanical and electro-optical performance remains an unresolved challenge.Here, we demonstrate a polymer-confined ferroelectric nematic (N F ) liquid crystal system, polymerized with mesogenic and non-mesogenic monomers under an electric field.The effective multidomain polymer structure exploits the intriguing properties of the N F LC and generates a highly scattered state with an excellent contrast ratio in the N F phase.Electric field-controlled reorientation of directors leads to a transparent state at a very small voltage.The system demonstrates the advantages of a low driving voltage, sub-millisecond switching time with negligible hysteresis, and improved durability, promoting applications in energy-saving smart windows.This work reveals valuable insights into leveraging N F LCs and tailoring polymer networks to advance the performance of electro-optic devices.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"23 9","pages":"091601-091601"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.researching.cn/ArticlePdf/m00005/2025/23/9/091601.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Visualization of HIFU acoustic intensity fields through photoacoustic tomography 利用光声断层成像技术实现HIFU声强场可视化

2区物理与天体物理

Chinese Optics Letters Pub Date : 2025-01-01 DOI: 10.3788/col202523.121204

Sicheng Yan, Zhiheng Chen, Chuanyu Lu, Hao Chen, Fanyun Pan, Qiangbing Lu, Xuejun Yan, Ming‐Hui Lu, Yan‐Feng Chen

{"title":"Visualization of HIFU acoustic intensity fields through photoacoustic tomography","authors":"Sicheng Yan, Zhiheng Chen, Chuanyu Lu, Hao Chen, Fanyun Pan, Qiangbing Lu, Xuejun Yan, Ming‐Hui Lu, Yan‐Feng Chen","doi":"10.3788/col202523.121204","DOIUrl":"https://doi.org/10.3788/col202523.121204","url":null,"abstract":"We proposed a high-intensity focused ultrasound (HIFU) visualization approach based on photoacoustic tomography (PAT), exploiting the linear relationship between the Grneisen parameter and temperature to map the HIFU-induced temperature field.A differential photoacoustic (DPA) method was employed to effectively suppress background noise caused by changes in the optical absorption coefficient due to structural tissue damage, thereby successfully decoupling the temperaturedependent photoacoustic (PA) signal enhancement.Furthermore, a quantitative model was established to describe the relationship between the temperature rise (T) and the PA signal variation (PA), enabling reconstruction of the temperature distribution within the HIFU focal region.Under short-duration irradiation conditions, where thermal diffusion can be neglected, axial scanning was used to reconstruct the three-dimensional acoustic field distribution of HIFU.The proposed visualization strategy effectively resolves the challenge of characterizing high-energy focal zones, significantly enhancing the ability to assess HIFU acoustic fields and providing a reliable foundation for pre-treatment dose planning and intraoperative precision therapy.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"23 12","pages":"121204-121204"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.researching.cn/ArticlePdf/m00005/2025/23/12/121204.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147912323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-power Pr3+:YLF continuous wave lasers at 691.7 nm, 701.4 nm, 705.0 nm, and 708.7 nm 691.7 nm, 701.4 nm， 705.0 nm和708.7 nm的高功率Pr3+:YLF连续波激光器

2区物理与天体物理

Chinese Optics Letters Pub Date : 2024-01-01 DOI: 10.3788/col202422.081404

Run Fang, Rongbin Dai, Huiying Xu, Zhou Cai

引用次数: 3

Photon pair generation from lithium niobate metasurface with tunable spatial entanglement 具有可调空间纠缠的铌酸锂超表面产生光子对

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-08-31 DOI: 10.3788/COL202321.010005

Jihua Zhang, Jinyong Ma, D. Neshev, A. Sukhorukov

引用次数: 2

High-dimensional frequency conversion in a hot atomic system 热原子系统中的高维频率转换

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-03-27 DOI: 10.3788/col202321.092701

Wei-Hang Zhang, Ying-hao Ye, Lei Zeng, Enze Li, Jing-Yuan Peng, D. Ding, B. Shi

引用次数: 0

Magnetic and electric Purcell enhancement in a hybrid metal-dielectric nanostructure 金属-介电混合纳米结构的磁与电Purcell增强

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.103602

Lingxiao Shan, Qi Liu, Yun Ma, Yali Jia, Hai Lin, Guowei Lü, Qihuang Gong, Ying Gu

引用次数: 0

Single-pixel wavefront sensing via vectorial polarization modulation 通过矢量偏振调制的单像素波前传感

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.090008

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引用次数: 0

Inverse design on terahertz multilevel diffractive lens based on 3D printing 基于3D打印的太赫兹多层衍射透镜逆设计

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.110006

Chenyu Shi, Yu Wang, Qiongjun Liu, Sai Chen, Weipeng Zhao, Xiaojun Wu, Jierong Cheng, Shengjiang Chang

引用次数: 0

Integrated fluorescence excitation, collection, and filtering on a GaN waveguide chip 集成荧光激发，收集，并在GaN波导芯片滤波

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.101203

Jiahui Zhang, Feng Xu, Ran An, Lin Wang, Min Jiang, Guanghui Wang, Yanqing Lu

{"title":"Integrated fluorescence excitation, collection, and filtering on a GaN waveguide chip","authors":"Jiahui Zhang, Feng Xu, Ran An, Lin Wang, Min Jiang, Guanghui Wang, Yanqing Lu","doi":"10.3788/col202321.101203","DOIUrl":"https://doi.org/10.3788/col202321.101203","url":null,"abstract":"Fluorescence detection is widely used in biology and medicine, while the realization of on-chip fluorescence detection is vital for the portable and point-of-care test (POCT) application. In this Letter, we propose an efficient fluorescence excitation and collection system using an integrated GaN chip consisting of a slot waveguide and a one-dimensional photonic crystal (1D PC) waveguide. The slot waveguide is used to confine the excitation light for intense light–sample interaction, and the one-trip collection efficiency at the end of slot waveguide is up to 14.65%. More interestingly, due to the introduction of the 1D PC waveguide, the fluorescence signal is directly filtered out, and the excitation light is reflected to the slot waveguide for multiple excitations. Its transmittances for the designed exciting wavelength of 520 nm and the fluorescent wavelength of 612 nm are 0.2% and 85.4%, respectively. Finally, based on numerical analysis, the total fluorescence collection efficiency in our system amounts to 15.93%. It is the first time, to our knowledge, that the concept of an all-in-one-chip fluorescence detection system has been proposed, which paves the way for on-chip fluorescence excitation and collection, and may find potential applications of miniaturized and portable devices for biomedical fluorescence detection.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0