[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-450195-105":59,"doc-detail-450195-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","single-shot-hyperspectral-wavefront-imaging","Single-shot hyperspectral wavefront imaging","","Single-shot hyperspectral wavefront sensing is introduced as an essential solution for broadband high-power laser metrology and fast dispersion imaging where conventional wavefront sensors assume achromatic wavefronts and fail. The method adapts Hartmann wavefront sensing using a multicore fiber as a Hartmann mask: wavefront gradients are encoded into speckle displacements while spectral content is captured in uncorrelated speckle patterns. The scheme keeps the simplicity, compactness, and single-shot capability of standard WFS, with only slight added computation and a tunable spatial–spectral resolution trade-off. Validation is demonstrated through acquisition of a hyperspectral wavefront cube at the Apollon multipetawatt facility and multispectral microscopic imaging of dispersive phase objects.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/single-shot-hyperspectral-wavefront-imaging/450195/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/single-shot-hyperspectral-wavefront-imaging/450195.png","ImageObject",300,407,{"name":92,"@type":93},"Oliver","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-07","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why are conventional wavefront sensors unsuitable for broadband illumination?","Question",{"text":112,"@type":113},"They assume an achromatic wavefront, so for broadband beams they cannot measure the true wavefront and instead yield an invalid spectrally-averaged result.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the proposed system encode wavefront gradients and spectral information?",{"text":117,"@type":113},"It uses a multicore fiber as a Hartmann mask so that angular-memory-based speckle displacements encode wavefront gradients, while the spectrum is encoded into uncorrelated speckle patterns.",{"name":119,"@type":110,"acceptedAnswer":120},"What practical benefits does the single-shot hyperspectral approach offer?",{"text":121,"@type":113},"It preserves the simplicity, compactness, and single-shot capability of conventional wavefront sensing, with only slight increases in computational complexity and a tunable spatial–spectral resolution trade-off.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},450195,1790808116,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":52,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},8796095461610,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","| |  |  | |\n| --- | --- | --- | --- |\n| Article [https://doi.org/10.1038/s41467-025-66847-w](https://doi.org/10.1038/s41467-025-66847-w) |  |  |  |\n| Single-shot hyperspectral wavefront imaging |  |  |  |\n| Received: 21 November 2024\u003Cbr>Accepted: 17 November 2025 Check for updates | Baptiste Blochet 1 , Nathalie Lebas2, Pascal Berto1,3,4, Dimitrios Papadopoulos2 & Marc Guillon 1,4,5 \u003Cbr>Single-shot hyperspectral wavefront sensing is essential for applications likespatio-spectral coupling metrology in high-power laser or fast material dispersion imaging. Under broadband illumination, traditional wavefront sensors assume an achromatic wavefront, which makes them unsuitable. We introduce a hyperspectral wavefront sensing scheme based on the Hartmann wavefront sensing principles, employing a multicore fiber as a Hartmann mask to overcome these limitations. Our system leverages the angular memory effect and limited spectral correlation width of the multicore fiber, encoding wavefront gradients into displacements and the spectral information into uncorrelated speckle patterns. This method retains the simplicity, compactness, and singleshot capability of conventional wavefront sensors, with only aslight increase in computational complexity. It also allows a tunable trade-off between spatial and spectral resolution. We demonstrate its efficacy for recording the hyperspectral wavefront cube from single-pulse acquisitions at the Apollon multipetawatt laser facility, and for performing multispectral microscopic imaging of dispersive phase objects. |  |  |\n| Wavefront sensing and quantitative phase imaging are widely used for beam metrology, adaptive optics1 and biomedical imaging2. A wavefront sensor (WFS) typically measures the wavefront of a single monochromatic beam. For broadband beams, it is assumed that the wavefronts are achromatic, otherwise, the WFS can only measure a meaningless spectrally-averaged wavefront. Spectrally resolved WFS is typically required to quantify spatio-spectral coupling in high power laser metrolgy3, to study light matter interaction in plasma4, to image material dispersion5 or to measure hemoglobin concentration in living organisms6. In these applications, single-shot measurements are preferable or even required, especially to monitor fast events like in flow cytometry7, in pump probe experiments4, in light matter interaction8, or to characterize single laser pulses8,9. Assisted by a chirped pulse, ultrafast events can be acquired4,8. Also, the performances of ultrafast and high-power laser systems critically suffer from non-linear optical aberrations10. While scanning techniques can arguably characterize thespatiotemporal pulse profiles in high repetition rate systems3, they are incompatible with low repetition rate systems, such as petawatt and multi-petawatt-class lasers, due to potential drift with time and limited pulse-to-pulse reproducibility. The key challenge in this context lies in |  | the spectral discrimination of wavefronts. In this manuscript, we distinguish between “multispectral” and “hyperspectral” techniques – referring, respectively, to approaches that resolve wavefronts over discrete spectral lines versus those spanning contiguous spectra, following the criterion established by Goetz11. This distinction is justified by the increased difficulty of sensing wavefronts across contiguous spectra compared to a discrete set of wavelengths. To manage continuous spectra, a spectrum-sampling Fabry–Perot interferometer was proposed in combination with a pair of gratings, which splits the spectral lines onto a conventional WFS, thereby enabling single-shot multispectral wavefront sensing over four spectral lines9. Although spectral sampling using a Fabry–Perot interferometer is efficient, the transmitted spectrum is sensitive to local wavefront tilt. Multispectral phase imaging could also be achieved by digital holography by encoding spectral information in the k-space12 or even without the need for a ref","cbCaiqFIEgemXBi1","https://ap.wps.com/l/cbCaiqFIEgemXBi1","pdf",1765809,"English","# Background and motivation\n## Limits of conventional achromatic wavefront sensors\n## Need for multispectral or hyperspectral, single-shot measurements\n# Related approaches and challenges\n## Spectral sampling and interferometric or digital methods\n## Trade-offs in complexity, resolution, and practicality\n# Proposed single-shot hyperspectral scheme\n## Encoding wavefront tilts as camera intensity translations\n## Multicore fiber Hartmann mask and spectral discrimination","[{\"question\":\"Why are conventional wavefront sensors unsuitable for broadband illumination?\",\"answer\":\"They assume an achromatic wavefront, so for broadband beams they cannot measure the true wavefront and instead yield an invalid spectrally-averaged result.\"},{\"question\":\"How does the proposed system encode wavefront gradients and spectral information?\",\"answer\":\"It uses a multicore fiber as a Hartmann mask so that angular-memory-based speckle displacements encode wavefront gradients, while the spectrum is encoded into uncorrelated speckle patterns.\"},{\"question\":\"What practical benefits does the single-shot hyperspectral approach offer?\",\"answer\":\"It preserves the simplicity, compactness, and single-shot capability of conventional wavefront sensing, with only slight increases in computational complexity and a tunable spatial–spectral resolution trade-off.\"}]","Single-shot hyperspectral wavefront imaging | PDF",1790732391,25]