Optics letters最新文献_第2页

Interaction between particles and multiple optical potential wells: trapping, transition, and transfer. 粒子与多个光势阱之间的相互作用：捕获、跃迁和转移。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.566012

Kai Zhang, Hongye Wang, Hongwei Li, Tingting Yuan, Xiaotong Zhang, Yin Zhang, Libo Yuan

引用次数: 0

Interfacial behavior of particles in nonpolar media: unveiling voltage-induced white state reduction and post-power-off enhancement in electrophoretic display. 非极性介质中粒子的界面行为：揭示电泳显示中电压诱导的白态减少和断电后的增强。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.567047

Jinglan Yang, Zhaoliang Li, Debo Zeng, Longda Li, Tao Zhou, Yue Zhang, Weichun Chen, Shaozhi Deng, Bo-Ru Yang

{"title":"Interfacial behavior of particles in nonpolar media: unveiling voltage-induced white state reduction and post-power-off enhancement in electrophoretic display.","authors":"Jinglan Yang, Zhaoliang Li, Debo Zeng, Longda Li, Tao Zhou, Yue Zhang, Weichun Chen, Shaozhi Deng, Bo-Ru Yang","doi":"10.1364/OL.567047","DOIUrl":"https://doi.org/10.1364/OL.567047","url":null,"abstract":"Electrophoretic display (EPD), a type of reflective display technology, is widely recognized for its advantages of bistability, low power consumption, and high ambient ratio. The operation of EPD relies on charged color particles migrating from one electrode interface to another under an electric field in a nonpolar medium. Therefore, the display performance is closely linked to the interfacial behavior of particles. However, the underlying mechanisms remain poorly understood. This study reveals two anomalous phenomena observed in EPD with aerosol OT (AOT) as surfactant: a decrease in white state under high driving voltages above a few tens of volts and an unexpected increase in white state after power removal. Through particle optical observation and tracking, we elucidate the interface behavior of particles behind these phenomena in AOT-modulated EPD. In the first case, particles bounce at the electrode due to particle polarity reversal at high voltage. In the second case, after the electric field is removed, particles move toward the electrodes due to a reduction in Coulomb repulsion and steric hindrance. Further, we propose the underlying mechanisms of these interface behaviors. The insights gained from this work offer valuable guidance for optimizing EPD performance, including bistability, contrast ratio, and ghosting effects.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4190-4193"},"PeriodicalIF":3.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541721","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

Laser heterodyne interferometry nano-displacement measurement based on an electro-optic modulation double sideband. 基于电光调制双边带的激光外差干涉纳米位移测量。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.565991

Shuwei Zhang, Xiaoping Li, Haifeng Sun, Zhongwen Deng, Wenjun Chen, Lirong Shen, Lin Li, Hengkang Zhang, Li Wang

引用次数: 0

Monolithic electric field control of a grating coupler for finely tuning wavelength, efficiency, and bandwidth. 用于精细调谐波长、效率和带宽的光栅耦合器的单片电场控制。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.555497

Yifan Zhang, Yongyong Zhuang, Liu Yang, Xin Liu, Qingyuan Hu, Haochen Yan, Hao Zhang, Yaojing Zhang, Shuangyou Zhang, Pascal Del'Haye, Xiaoyong Wei, Zhuo Xu

引用次数: 0

Optical coherence tomography angiography integrating differential phase and intensity images for in vivo imaging of a mouse retina. 整合不同相位和强度图像的光学相干断层血管造影用于小鼠视网膜的体内成像。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.557676

Fuwang Wu, Xiang He, Yongjian Li, Xiaoqi Lu, Kaixuan Hu, Hongtao Wei, Wei Yi, Yi Wan, Weiye Song

引用次数: 0

Orthogonal coding-based spatial channel switching: breaking the dimensionality barrier in optical multiplexing systems. 基于正交编码的空间信道交换：打破光复用系统中的维数障碍。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.561028

Weihang Zhong, Lixun Wu, Zituo Wu, Zhouxin Liang, Zhongzheng Lin, Yujie Chen

{"title":"Orthogonal coding-based spatial channel switching: breaking the dimensionality barrier in optical multiplexing systems.","authors":"Weihang Zhong, Lixun Wu, Zituo Wu, Zhouxin Liang, Zhongzheng Lin, Yujie Chen","doi":"10.1364/OL.561028","DOIUrl":"https://doi.org/10.1364/OL.561028","url":null,"abstract":"In multi-channel wavelength-division multiplexing (WDM) and space-division multiplexing (SDM) optical communication systems, spatial channel-switching devices play a critical role. Here, we propose an optical orthogonal coding (OC) mode construction method based on phase-gradient coding and establish a mapping with dispersed spatial channels of a fiber array to develop a spatial channel-switching device. The device consists of a multi-channel fiber array, a mode converter, and a channel-switching plane. We experimentally demonstrate a bidirectional mode converter that consists of five phase masks, enabling the switching of seven spatial channels with seven corresponding switching phase distributions. The orthogonal coding-based channel-switching devices eliminate the need for phase adjustments in predetermined spatial regions and simplify the operational complexity of the channel-switching process. This work paves the way for the simultaneous enhancement of channel scalability and system performance, thereby providing a viable pathway to overcome the dimensionality barrier in optical multiplexing systems.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4378-4381"},"PeriodicalIF":3.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541739","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

Photorefractive reservoir computing. 光折变储层计算。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.564645

Sebastian Alveteg, Marc Sciamanna, Alex Fuerbach, Delphine Wolfersberger

引用次数: 0

Semi-polar (20-21) GaN microwire LED fabricated by laser lift-off and mechanical bending. 半极性（20-21）氮化镓微线LED的激光提升和机械弯曲。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.564940

Yun Zhang, Hao Sun, Zhe Zhuang, Tao Tao, Kun Xing, Bin Liu, Yunxia Ye

引用次数: 0

All-optical controlled ternary encoding polarization THz modulator-based on a vanadium dioxide-metal bilayer reconfigurable metasurface. 基于二氧化钒-金属双层可重构超表面的全光控制三元编码极化太赫兹调制器。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.558092

Chenyue Xi, Longhui Zhang, Yufan Zhang, Fangrong Hu, Mingzhu Jiang, Yatao Zhou, Zhi Zhou, Zengxiu Zhao

{"title":"All-optical controlled ternary encoding polarization THz modulator-based on a vanadium dioxide-metal bilayer reconfigurable metasurface.","authors":"Chenyue Xi, Longhui Zhang, Yufan Zhang, Fangrong Hu, Mingzhu Jiang, Yatao Zhou, Zhi Zhou, Zengxiu Zhao","doi":"10.1364/OL.558092","DOIUrl":"https://doi.org/10.1364/OL.558092","url":null,"abstract":"Terahertz (THz) polarization modulators play a critical role in application-oriented terahertz wireless communication. Currently, the highly efficient multifunctional polarization state modulator-based optical excitation continues to be a challenge due to limitations in manipulation methods. In this study, we proposed a vanadium dioxide (VO2)-metal hybrid bilayer metasurface. By independently manipulating the insulator-to-metal transition of VO2 bars on both surfaces under two pump excitations, the metadevice can freely switch between left-handed circular polarization, right-handed circular polarization, and linear polarization states at a resonance frequency. A ternary encoding for the output polarization states was proposed. Furthermore, an equivalent circuit model was also established to demonstrate its physical mechanism of resonances. The results not only provide what we believe to be a novel method to design multifunction metadevices but also promote the development of polarization modulation technology in terahertz communications.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4290-4293"},"PeriodicalIF":3.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541681","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

Deep learning-enhanced image analysis for liquid crystal optical sensing. 基于深度学习的液晶光学传感图像分析。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-07-01 DOI: 10.1364/OL.561960

Yuxingyue Zhang, Mengjun Liu, Jiamei Chen, Wenfeng Lin, Jinhan Xia, Minmin Zhang, Lingling Shui

{"title":"Deep learning-enhanced image analysis for liquid crystal optical sensing.","authors":"Yuxingyue Zhang, Mengjun Liu, Jiamei Chen, Wenfeng Lin, Jinhan Xia, Minmin Zhang, Lingling Shui","doi":"10.1364/OL.561960","DOIUrl":"https://doi.org/10.1364/OL.561960","url":null,"abstract":"In liquid crystal (LC) sensors, each microliter of LC contains billions of molecules with numerous orientation combinations, generating thousands of optical images with diverse textures under polarized optical microscope according to internal or external actuation. In this work, we utilize the VGG16 (Visual Geometry Group) deep learning (DL) model to accelerate the analysis of LC optical images, enabling visualized and precise sensing applications. The trained model helps improve the LC sensing speed and sensitivity to achieve a classification accuracy of 0.9113 within 30 s when triggered by two representative surfactants, cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfate (SDS). The average relative errors are reduced to 3.54 and 7.94%, respectively, in quantitatively sensing the insulin-specific aptamer and insulin. In addition, the sensing time decreases from 300 s (using gray scale intensity quantification) to 90 s for insulin recognition and concentration detection. DL has been proven to be a useful and powerful analytical tool in image analysis, improving the speed and accuracy of optical image-based sensors.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4446-4449"},"PeriodicalIF":3.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541695","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