IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-28 DOI: 10.1364/optica.523636

Qianwan Yang, Ruipeng Guo, Guorong Hu, Yujia Xue, Yunzhe Li, Lei Tian

{"title":"Wide-field, high-resolution reconstruction in computational multi-aperture miniscope using a Fourier neural network","authors":"Qianwan Yang, Ruipeng Guo, Guorong Hu, Yujia Xue, Yunzhe Li, Lei Tian","doi":"10.1364/optica.523636","DOIUrl":"https://doi.org/10.1364/optica.523636","url":null,"abstract":"Traditional fluorescence microscopy is constrained by inherent trade-offs among resolution, field of view, and system complexity. To navigate these challenges, we introduce a simple and low-cost computational multi-aperture miniature microscope, utilizing a microlens array for single-shot wide-field, high-resolution imaging. Addressing the challenges posed by extensive view multiplexing and non-local, shift-variant aberrations in this device, we present SV-FourierNet, a multi-channel Fourier neural network. SV-FourierNet facilitates high-resolution image reconstruction across the entire imaging field through its learned global receptive field. We establish a close relationship between the physical spatially varying point-spread functions and the network’s learned effective receptive field. This ensures that SV-FourierNet has effectively encapsulated the spatially varying aberrations in our system and learned a physically meaningful function for image reconstruction. Training of SV-FourierNet is conducted entirely on a physics-based simulator. We showcase wide-field, high-resolution video reconstructions on colonies of freely moving C. elegans and imaging of a mouse brain section. Our computational multi-aperture miniature microscope, augmented with SV-FourierNet, represents a major advancement in computational microscopy and may find broad applications in biomedical research and other fields requiring compact microscopy solutions.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"51 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Narrow-linewidth exciton-polariton laser 窄线宽激子-极化子激光器

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-28 DOI: 10.1364/optica.525961

Bianca Rae Fabricante, Mateusz Król, Matthias Wurdack, Maciej Pieczarka, Mark Steger, David W. Snoke, Kenneth West, Loren N. Pfeiffer, Andrew G. Truscott, Elena A. Ostrovskaya, Eliezer Estrecho

{"title":"Narrow-linewidth exciton-polariton laser","authors":"Bianca Rae Fabricante, Mateusz Król, Matthias Wurdack, Maciej Pieczarka, Mark Steger, David W. Snoke, Kenneth West, Loren N. Pfeiffer, Andrew G. Truscott, Elena A. Ostrovskaya, Eliezer Estrecho","doi":"10.1364/optica.525961","DOIUrl":"https://doi.org/10.1364/optica.525961","url":null,"abstract":"Exciton-polariton lasers are a promising source of coherent light for low-energy applications due to their low-threshold operation. However, a detailed experimental study of their spectral purity, which directly affects their coherence properties, is still missing. Here, we present a high-resolution spectroscopic investigation of the energy and linewidth of an exciton-polariton laser in the single-mode regime, which derives its coherent emission from an optically pumped and confined exciton-polariton condensate. We report an ultra-narrow linewidth of 56 MHz or 0.24 µeV, corresponding to a coherence time of 5.7 ns. The narrow linewidth is consistently achieved by using an exciton-polariton condensate with a high photonic content confined in an optically induced trap. Contrary to previous studies, we show that the excitonic reservoir created by the pump and responsible for creating the trap does not strongly affect the emission linewidth as long as the condensate is trapped and the pump power is well above the condensation (lasing) threshold. The long coherence time of the exciton-polariton system uncovered here opens up opportunities for manipulating its macroscopic quantum state, which is essential for applications in classical and quantum computing.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"61 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 detection of multidimensional single-photon time-bin superpositions 多维单光子时盆叠加的高效探测

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-17 DOI: 10.1364/optica.503095

Adam Widomski, Maciej Ogrodnik, Michał Karpiński

引用次数: 0

Nanoscale dark-field imaging in full-field transmission X-ray microscopy 全场透射 X 射线显微镜中的纳米级暗场成像

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-14 DOI: 10.1364/optica.524812

Sami Wirtensohn, Peng Qi, Christian David, Julia Herzen, Imke Greving, Silja Flenner

引用次数: 0

Hyperspectral in-memory computing with optical frequency combs and programmable optical memories 利用光频率梳和可编程光学存储器进行高光谱内存计算

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-10 DOI: 10.1364/optica.522378

Mostafa Honari Latifpour, Byoung Jun Park, Yoshihisa Yamamoto, Myoung-Gyun Suh

{"title":"Hyperspectral in-memory computing with optical frequency combs and programmable optical memories","authors":"Mostafa Honari Latifpour, Byoung Jun Park, Yoshihisa Yamamoto, Myoung-Gyun Suh","doi":"10.1364/optica.522378","DOIUrl":"https://doi.org/10.1364/optica.522378","url":null,"abstract":"The rapid rise of machine learning drives demand for extensive matrix-vector multiplication operations, thereby challenging the capacities of traditional von Neumann computing systems. Researchers explore alternatives, such as in-memory computing architecture, to find energy-efficient solutions. In particular, there is renewed interest in optical computing systems, which could potentially handle matrix-vector multiplication in a more energy-efficient way. Despite promising initial results, developing high-throughput optical computing systems to rival electronic hardware remains a challenge. Here, we propose and demonstrate a hyperspectral in-memory computing architecture, which simultaneously utilizes space and frequency multiplexing, using optical frequency combs and programmable optical memories. Our carefully designed three-dimensional opto-electronic computing system offers remarkable parallelism, programmability, and scalability, overcoming typical limitations of optical computing. We have experimentally demonstrated highly parallel, single-shot multiply-accumulate operations with precision exceeding 4 bits in both matrix-vector and matrix-matrix multiplications, suggesting the system’s potential for a wide variety of deep learning and optimization tasks. Our approach presents a realistic pathway to scale beyond peta operations per second, a major stride towards high-throughput, energy-efficient optical computing.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"50 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Experimental anonymous quantum conferencing 实验性匿名量子会议

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-07 DOI: 10.1364/optica.514362

Jonathan W. Webb, Joseph Ho, Federico Grasselli, Gláucia Murta, Alexander Pickston, Andres Ulibarrena, Alessandro Fedrizzi

引用次数: 0

Ultrafast temporal phase-resolved nonlinear optical spectroscopy in the molecular frame 分子框架内的超快时间相位分辨非线性光学光谱学

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-06 DOI: 10.1364/optica.515959

Siddhant Pandey, Liang Z. Tan, Francis Walz, Varun Makhija, Niranjan Shivaram

{"title":"Ultrafast temporal phase-resolved nonlinear optical spectroscopy in the molecular frame","authors":"Siddhant Pandey, Liang Z. Tan, Francis Walz, Varun Makhija, Niranjan Shivaram","doi":"10.1364/optica.515959","DOIUrl":"https://doi.org/10.1364/optica.515959","url":null,"abstract":"In an ultrafast nonlinear optical interaction, the electric field of the emitted nonlinear signal provides direct access to the induced nonlinear transient polarization or transient currents and thus carries signatures of ultrafast dynamics in a medium. Measurement of the electric field of such signals offers sensitive observables to track ultrafast electron dynamics in various systems. In this work, we resolve the real-time phase of the electric field of a femtosecond third-order nonlinear optical signal in the molecular frame. The electric field emitted from impulsively pre-aligned gas-phase molecules at room temperature, in a degenerate four-wave mixing scheme, is measured using a spectral interferometry technique. The nonlinear signal is measured around a rotational revival to extract its molecular-frame angle dependence from pump-probe time-delay scans. By comparing these measurements for two linear molecules, carbon dioxide and nitrogen, we show that the measured second-order phase parameter (temporal chirp) of the signal is sensitive to the valence electronic symmetry of the molecules, whereas the amplitude of the signal does not show such sensitivity. We compare measurements to theoretical calculations of the chirp observable in the molecular frame. This work is an important step towards using electric field measurements in nonlinear optical spectroscopy to study ultrafast dynamics of electronically excited molecules in the molecular frame.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"51 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Phase-diversity-based wavefront sensing for fluorescence microscopy 基于相位分集的荧光显微镜波前传感技术

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-05-02 DOI: 10.1364/optica.518559

Courtney Johnson, Min Guo, Magdalena C. Schneider, Yijun Su, Satya Khuon, Nikolaj Reiser, Yicong Wu, Patrick La Riviere, Hari Shroff

{"title":"Phase-diversity-based wavefront sensing for fluorescence microscopy","authors":"Courtney Johnson, Min Guo, Magdalena C. Schneider, Yijun Su, Satya Khuon, Nikolaj Reiser, Yicong Wu, Patrick La Riviere, Hari Shroff","doi":"10.1364/optica.518559","DOIUrl":"https://doi.org/10.1364/optica.518559","url":null,"abstract":"Fluorescence microscopy is an invaluable tool in biology, yet its performance is compromised when the wavefront of light is distorted due to optical imperfections or the refractile nature of the sample. Such optical aberrations can dramatically lower the information content of images by degrading the image contrast, resolution, and signal. Adaptive optics (AO) methods can sense and subsequently cancel the aberrated wavefront, but they are too complex, inefficient, slow, or expensive for routine adoption by most labs. Here, we introduce a rapid, sensitive, and robust wavefront sensing scheme based on phase diversity, a method successfully deployed in astronomy but underused in microscopy. Our method enables accurate wavefront sensing to less than λ/35 root mean square (RMS) error with few measurements, and AO with no additional hardware besides a corrective element. After validating the method with simulations, we demonstrate the calibration of a deformable mirror >hundredfold faster than comparable methods (corresponding to wavefront sensing on the ∼100ms scale), and sensing and subsequent correction of severe aberrations (RMS wavefront distortion exceeding λ/2), restoring diffraction-limited imaging on extended biological samples.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"209 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Collaborative publication of related articles puts focus on emerging topics: editorial 社论：合作发表相关文章，关注新兴话题

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-04-30 DOI: 10.1364/optica.528967

Christophe Dorrer, Prem Kumar, Guifang Li

引用次数: 0

Sub-terahertz optomechanics 次太赫兹光学机械学

IF 10.4 1区物理与天体物理

Optica Pub Date : 2024-04-30 DOI: 10.1364/optica.524431

Jiacheng Xie, Mohan Shen, Hong X. Tang

引用次数: 0

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