Optics express最新文献_第7页

Tiny integrated lasers and their application to industrial laser technologies: feature issue introduction. 微型集成激光器及其在工业激光技术中的应用：专题介绍。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.571207

Takunori Taira, Jun Hayashi, Nicolaie Pavel, Tohru Suzuki

引用次数: 0

Ultra-high-Q chalcogenide glass on-chip resonators attaining internal impurity-limited loss in the mid-infrared. 实现中红外内部杂质限制损耗的超高q硫族玻璃片上谐振器。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.569797

Daewon Suk, Kiyoung Ko, Rongping Wang, Xunsi Wang, Duk-Yong Choi, Hansuek Lee

{"title":"Ultra-high-Q chalcogenide glass on-chip resonators attaining internal impurity-limited loss in the mid-infrared.","authors":"Daewon Suk, Kiyoung Ko, Rongping Wang, Xunsi Wang, Duk-Yong Choi, Hansuek Lee","doi":"10.1364/OE.569797","DOIUrl":"https://doi.org/10.1364/OE.569797","url":null,"abstract":"High-Q on-chip resonators are essential for elevating the efficiency and performance of on-chip functional devices. However, achieving their loss performance that approaches the ultra-low loss of optical fiber in the mid-infrared region has remained a challenge. Here, we demonstrate ultra-high-Q mid-infrared on-chip microresonators based on multiple chalcogenide glasses, exhibiting optical loss characteristics comparable to those of state-of-the-art optical fibers. By suppressing optical losses from scattering and molecular absorption, Q-factors exceeding 10 million were achieved across the 3.2 to 4.6 µm range, peaking at 67 million (0.29 dB/m) at 3.91 µm. The loss performance of these resonators is fundamentally limited by the intrinsic material losses, as good agreement with the optical loss spectrum of ChG fibers. In addition, the absence of absorption peaks induced by Se-H in the As2Se3 core layer is consistent with the spectral characteristics of Se-H-free fibers, indicating that the deposited film retained the purity of its evaporation source. This result underscores the importance of mitigating internal impurities at the chip scale to achieve low optical loss in the mid-infrared.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 15","pages":"32033-32040"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144743821","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

White-light spiral phase contrast imaging. 白光螺旋相衬成像。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.564550

Ronghao Deng, Hongwei Yang, Shuoqi Feng, Kai Tu, Yongchun Zhong, Jieyuan Tang, Huadan Zheng, Jianhui Yu, Zhe Chen, Wenguo Zhu

引用次数: 0

Design, fabrication, and characterization of third-order dispersion mirrors for femtosecond lasers. 飞秒激光器三阶色散镜的设计、制造与表征。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.565517

Lin Jia, Yanzhi Wang, Chang Liu, Xingyan Liu, Yu Chen, Yesheng Lu, Jianda Shao

{"title":"Design, fabrication, and characterization of third-order dispersion mirrors for femtosecond lasers.","authors":"Lin Jia, Yanzhi Wang, Chang Liu, Xingyan Liu, Yu Chen, Yesheng Lu, Jianda Shao","doi":"10.1364/OE.565517","DOIUrl":"https://doi.org/10.1364/OE.565517","url":null,"abstract":"The residual third-order dispersion (TOD) in ultrafast laser systems must be compensated. We developed an initial design method for a low-oscillation TOD mirror (TODM). The optimized TODM provided a TOD of -5000 fs3 with oscillations less than ±50 fs3 in a wavelength range of 890-960 nm. To meet the requirements of an all-fiber femtosecond laser system, we simulated the application of the TODM in an ultrafast laser system to compensate for a positive TOD of +2.5 × 105 fs3. Sidelobe pulse oscillations were significantly suppressed after TODM compression, thereby improving pulse quality. Moreover, the laser-induced damage threshold of the TODM was measured to be approximately 0.20 J/cm2 under irradiation with 16 fs laser pulses with a spectral bandwidth of 200 nm centered at 920 nm. The initial damage locations on the mirror were successfully explained using multiwavelength electric field analysis. This study provides a basis for the subsequent design of TODMs and the study of the femtosecond damage of dispersion mirrors.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 15","pages":"31120-31128"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144743703","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

Alternate anti-phase pulsation in a mode-locked Yb-doped fiber laser. 锁模掺镱光纤激光器的交替反相位脉动。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.570693

Xinxu Duan, Hongbo Jiang, Yuantong Liu, Xiaoyun Tang, Lei Jin

{"title":"Alternate anti-phase pulsation in a mode-locked Yb-doped fiber laser.","authors":"Xinxu Duan, Hongbo Jiang, Yuantong Liu, Xiaoyun Tang, Lei Jin","doi":"10.1364/OE.570693","DOIUrl":"https://doi.org/10.1364/OE.570693","url":null,"abstract":"Pulsations have been widely studied in mode-locked fiber lasers because their behavior is analogous to oscillations in other dissipative systems. Despite extensive research on various pulsations, a detailed investigation into pulsations originating from the periodic evolution of pulse polarization states remains absent. We report the experimental observation of an alternate anti-phase pulsation (AAP) in a mode-locked Yb-doped fiber laser. AAP exhibits periodic anti-phase intensity oscillations between adjacent pulses. Dispersive Fourier transform measurements reveal that the temporal AAP corresponds to synchronized, periodic spectral variations in the frequency domain. The pulsation period depends on the net cavity dispersion. Additionally, the amplitude of the AAP decreases as the laser transitions from single-pulse to multi-pulse bound states. The mechanism of the AAP is considered to arise from the periodic evolution of the polarization state between adjacent pulses. These findings provide crucial insights into the role of vector mechanisms in complex pulse behaviors and offer guidance for designing advanced laser systems.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 15","pages":"32041-32050"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144743674","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

Efficient source and mask optimization based on interpretable hypergraph auto-encoding network. 基于可解释超图自编码网络的高效源和掩码优化。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.564525

Shengen Zhang, Xu Ma

{"title":"Efficient source and mask optimization based on interpretable hypergraph auto-encoding network.","authors":"Shengen Zhang, Xu Ma","doi":"10.1364/OE.564525","DOIUrl":"https://doi.org/10.1364/OE.564525","url":null,"abstract":"Source and mask co-optimization (SMO) is an important technique to improve the image fidelity and process window of the advanced lithography process. Modern SMO methods adopt pixelated representations of source and mask to improve the degrees of optimization freedom, but those approaches are computationally intensive and time consuming. To our knowledge, this paper is the first to develop an efficient SMO method based on the advanced hypergraph deep learning framework. Firstly, a novel mask clip selection method based on sparse signal reconstruction is developed to rapidly determine the representative mask clips for source optimization. Based on the selected mask clips, the source pattern can be optimized using the fast gradient-based algorithm. Then, an advanced deep learning approach, dubbed hypergraph auto-encoding network, is used to accelerate the mask optimization under the optimal illumination condition. In the proposed network, a hypergraph model is used to predict mask optimization solutions directly based on layout features. A reverse decoder based on the lithography physical imaging model is used to self-supervise the network training. Simulation results demonstrate the superiorities of the proposed methods in terms of lithography image fidelity, process robustness, and computational efficiency.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 15","pages":"31770-31784"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144743712","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

Elevation in surface enhanced fluorescence performance mediated by glutathione protonation in acidic environments. 在酸性环境中，由谷胱甘肽质子化介导的表面升高增强了荧光性能。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.567526

Shi Wang, Wenbo Wu, Yue Li, Chenxi Gu, Xiaolong Song, Yafang Pan, Zhen Sun, Yunfan Yang, Tifeng Jiao, Mingli Wang

引用次数: 0

Temporal processing underlying transient twinkle perception in luminance and chromatic stimuli. 在亮度和颜色刺激下瞬态闪烁知觉的时间加工。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.565148

Chang-Yeong Han, Seonggyu Choe, Eun Cho, Hyo-Sun Kim, Oh-Sang Kwon

{"title":"Temporal processing underlying transient twinkle perception in luminance and chromatic stimuli.","authors":"Chang-Yeong Han, Seonggyu Choe, Eun Cho, Hyo-Sun Kim, Oh-Sang Kwon","doi":"10.1364/OE.565148","DOIUrl":"https://doi.org/10.1364/OE.565148","url":null,"abstract":"Humans can detect transitions of frequencies between two sequentially presented flickering stimuli, even when the two flickering stimuli appear steady, a phenomenon known as transient twinkle perception (TTP). A previous study of TTP has suggested that a temporal integration model with a monophasic Gaussian filter can account for this effect. However, the low-level temporal integration of the human visual system for luminance stimuli has been characterized by a biphasic filter. Here, we measured TTP magnitude under various conditions and evaluated Gaussian and bi-phasic filter models. In Experiment 1, we examined the effect of frequency differences between the first and second epochs on TTP magnitude. Experiments 2 and 3 introduced intermediate frequency frames to gradually transition between flickering frequencies. Experiment 4 assessed TTP magnitude using equiluminant chromatic stimuli. Results showed that, for luminance-based TTP, the bi-phasic filter model better accounted for TTP magnitudes, whereas the Gaussian filter model aligned more closely with TTP magnitude observed in the equiluminant chromatic condition. These findings suggest that both luminance and chromatic TTP are natural outcomes of the temporal integration in low-level visual processing and that an ad hoc model for TTP is unnecessary.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 15","pages":"31609-31623"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144743810","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

Simple and efficient high-energy few-cycle pulse generation through hybrid MPC and filamentation. 通过混合MPC和灯丝产生简单高效的高能少周期脉冲。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.563478

Yutian Luo, Zhongchao Li, Xincai Diao, Qi Liu, Jiaqi Luo, Yang Liu, Guoqing Chang, Guorong Wu, Wei Liu

引用次数: 0

Snapshot hyperspectral imaging with high spatial resolution based on transformers. 基于变压器的高空间分辨率快照高光谱成像。

IF 3.3 2区物理与天体物理

Optics express Pub Date : 2025-07-28 DOI: 10.1364/OE.563614

Junpeng Zhu, Haitao Nie, Luyang Wang, Baixuan Zhao, Kaifeng Zheng, Yingze Zhao, Yupeng Chen, Weihong Ning, Peng Sun, Xudong Du, Siyao Ma, Yuxin Qin, Weibiao Wang, Jingqiu Liang, Jinguang Lv

{"title":"Snapshot hyperspectral imaging with high spatial resolution based on transformers.","authors":"Junpeng Zhu, Haitao Nie, Luyang Wang, Baixuan Zhao, Kaifeng Zheng, Yingze Zhao, Yupeng Chen, Weihong Ning, Peng Sun, Xudong Du, Siyao Ma, Yuxin Qin, Weibiao Wang, Jingqiu Liang, Jinguang Lv","doi":"10.1364/OE.563614","DOIUrl":"https://doi.org/10.1364/OE.563614","url":null,"abstract":"Snapshot spectral imaging based on spectral response encoding has become a research focus due to its miniaturization and simple optical layout. Nevertheless, the limited pixel density of image sensors has become a technical bottleneck restricting spectral and spatial resolution. To address this problem, efficient spectral encoding methods and high-precision spectral reconstruction algorithms are crucial. In this study, we propose the theory of spectral information entropy transfer and find that the encoding loss of the target spectral cube's information entropy is the main factor restricting the spatial and spectral resolution of the reconstructed spectral cube. Based on this theory, we have developed the hyperspectral imaging transformers network (HSITNet), based on transformers. Compared to other models, HSITNet has a broader field of vision, effectively reducing the joint distribution information entropy of the spectral cube, and achieves higher spectral reconstruction quality. To fully explore the encoding performance, we introduce an algorithm to jointly optimize the encoding and decoding strategies. This mutual adaptation enhances the imaging quality of the spectral cube and enables the automatic design of encoding devices. In data experiments, we successfully reconstructed data cubes with 151 spectral channels, achieving pixel-level spatial resolution without mosaic. Reconstruction results show superior performance with metrics: MSE = 1.21 × 10-4, SAM = 0.041, PSNR = 39.72, and SSIM = 0.95, thereby realizing snapshot hyperspectral imaging with no spatial resolution degradation.","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 15","pages":"31731-31755"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144743796","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