Pub Date : 2025-12-02DOI: 10.1038/s41566-025-01813-y
David Pile
500,000 heat-related deaths occur each year, according to the World Health Organization. Passive and active photonic-based cooling strategies were discussed at a recent Sydney Radiative Cooling Workshop.
{"title":"Photonics based cooling outpaces policy","authors":"David Pile","doi":"10.1038/s41566-025-01813-y","DOIUrl":"10.1038/s41566-025-01813-y","url":null,"abstract":"500,000 heat-related deaths occur each year, according to the World Health Organization. Passive and active photonic-based cooling strategies were discussed at a recent Sydney Radiative Cooling Workshop.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 12","pages":"1288-1290"},"PeriodicalIF":32.9,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145652847","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}
Pub Date : 2025-12-02DOI: 10.1038/s41566-025-01804-z
Jonathan Ericson, Moran Bercovici
Structured light and photothermal conversion are used to create reconfigurable thermal barriers in a microfluidic device. These virtual barriers can be used to dynamically control fluid flow and microparticle trajectories.
结构光和光热转换用于在微流控装置中创建可重构的热障。这些虚拟屏障可用于动态控制流体流动和微粒轨迹。
{"title":"A light-actuated microfluidic playground","authors":"Jonathan Ericson, Moran Bercovici","doi":"10.1038/s41566-025-01804-z","DOIUrl":"10.1038/s41566-025-01804-z","url":null,"abstract":"Structured light and photothermal conversion are used to create reconfigurable thermal barriers in a microfluidic device. These virtual barriers can be used to dynamically control fluid flow and microparticle trajectories.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 12","pages":"1282-1283"},"PeriodicalIF":32.9,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145652846","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}
Pub Date : 2025-12-02DOI: 10.1038/s41566-025-01811-0
Philip Tinnefeld, Samrat Basak
Vitrification of polymer solutions yields ultrasmall fluorescent polymer dots that combine dye-like size with nanoparticle brightness, enabling nanometre-precision live-cell tracking on standard microscopes.
Pub Date : 2025-12-02DOI: 10.1038/s41566-025-01798-8
Peter Hommelhoff
Shining intense laser pulses on an electron beam in an electron microscope corrects electron-optical spherical aberration, paving the way to using light to improve electron microscopy imaging.
{"title":"Improving electron microscopy with light","authors":"Peter Hommelhoff","doi":"10.1038/s41566-025-01798-8","DOIUrl":"10.1038/s41566-025-01798-8","url":null,"abstract":"Shining intense laser pulses on an electron beam in an electron microscope corrects electron-optical spherical aberration, paving the way to using light to improve electron microscopy imaging.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 12","pages":"1277-1278"},"PeriodicalIF":32.9,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145652848","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}
Pub Date : 2025-12-02DOI: 10.1038/s41566-025-01814-x
Emilien Peytavit
Simultaneous high-bandwidth and high-optoelectronic conversion efficiency in photodiodes is difficult to achieve. Now, researchers have demonstrated waveguide-integrated photodiodes with over 200 GHz bandwidth, 0.81 A/W responsivity and a bandwidth–efficiency product of 133.5 GHz, thus enabling amplifier-free 120 Gbps wireless transmission over 54 m.
{"title":"New photodiodes ready to bridge optical and sub-THz communications","authors":"Emilien Peytavit","doi":"10.1038/s41566-025-01814-x","DOIUrl":"10.1038/s41566-025-01814-x","url":null,"abstract":"Simultaneous high-bandwidth and high-optoelectronic conversion efficiency in photodiodes is difficult to achieve. Now, researchers have demonstrated waveguide-integrated photodiodes with over 200 GHz bandwidth, 0.81 A/W responsivity and a bandwidth–efficiency product of 133.5 GHz, thus enabling amplifier-free 120 Gbps wireless transmission over 54 m.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 12","pages":"1279-1281"},"PeriodicalIF":32.9,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145652845","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}
Pub Date : 2025-11-26DOI: 10.1038/s41566-025-01780-4
Francesco Furlan, Michal Šámal, Jiří Rybáček, Andrea Taddeucci, Marta Di Girolamo, Davide Nodari, Giuliano Siligardi, Jessica Wade, Binghai Yan, Irena G. Stará, Nicola Gasparini, Matthew J. Fuchter
The photon spin information encoded in circularly polarized (CP) light is of high interest for current and future technologies, including low-power displays, encrypted communications and high-performance quantum applications. Engineering organic light-emitting diodes (LED) to emit oppositely handed electroluminescent CP light typically requires access to left- and right-handed chiral molecules. In conjugated polymer LEDs, the handedness of CP electroluminescence also depends on the active-layer thickness or direction of current flow. For a given active-layer thickness, it remains unknown whether a single-handed chiral material can emit CP light with opposite handedness in the same LED architecture. Here we demonstrate organic LEDs in which the handedness of the emitted CP electroluminescence can be controlled electrically, solely by using specific interlayers with no change in the emissive material composition or thickness. We reveal that this occurs due to a change in mechanism for the generation of CP electroluminescence, as a function of the recombination zone position within the device. This result provides a paradigm shift in the realization of organic CP-LEDs with controllable spin angular momentum information and further contributes to ongoing discussions relating the fundamental physics of chiral optoelectronics. Electrical tuning of the recombination zone in circularly polarized (CP) OLEDs enables switching the CP generation mechanism between normal and anomalous CP electroluminescence. This is exploited to electrically control the handedness of emitted CP light from the same device with the same enantiomer material.
{"title":"Electrical control of photon spin angular momentum in organic electroluminescent materials","authors":"Francesco Furlan, Michal Šámal, Jiří Rybáček, Andrea Taddeucci, Marta Di Girolamo, Davide Nodari, Giuliano Siligardi, Jessica Wade, Binghai Yan, Irena G. Stará, Nicola Gasparini, Matthew J. Fuchter","doi":"10.1038/s41566-025-01780-4","DOIUrl":"10.1038/s41566-025-01780-4","url":null,"abstract":"The photon spin information encoded in circularly polarized (CP) light is of high interest for current and future technologies, including low-power displays, encrypted communications and high-performance quantum applications. Engineering organic light-emitting diodes (LED) to emit oppositely handed electroluminescent CP light typically requires access to left- and right-handed chiral molecules. In conjugated polymer LEDs, the handedness of CP electroluminescence also depends on the active-layer thickness or direction of current flow. For a given active-layer thickness, it remains unknown whether a single-handed chiral material can emit CP light with opposite handedness in the same LED architecture. Here we demonstrate organic LEDs in which the handedness of the emitted CP electroluminescence can be controlled electrically, solely by using specific interlayers with no change in the emissive material composition or thickness. We reveal that this occurs due to a change in mechanism for the generation of CP electroluminescence, as a function of the recombination zone position within the device. This result provides a paradigm shift in the realization of organic CP-LEDs with controllable spin angular momentum information and further contributes to ongoing discussions relating the fundamental physics of chiral optoelectronics. Electrical tuning of the recombination zone in circularly polarized (CP) OLEDs enables switching the CP generation mechanism between normal and anomalous CP electroluminescence. This is exploited to electrically control the handedness of emitted CP light from the same device with the same enantiomer material.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 12","pages":"1361-1366"},"PeriodicalIF":32.9,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-025-01780-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145599630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2025-11-26DOI: 10.1038/s41566-025-01806-x
Natalia Herrera Valencia, Annameng Ma, Suraj Goel, Saroch Leedumrongwatthanakun, Francesco Graffitti, Alessandro Fedrizzi, Will McCutcheon, Mehul Malik
The distribution of entanglement in quantum networks will enable the next generation of technologies in quantum-secured communications, distributed quantum computing and sensing. Future quantum networks will require dense connectivity, allowing multiple users to share entanglement in a reconfigurable and multiplexed manner, while long-distance connections are established through the teleportation of entanglement, or entanglement swapping. Although several recent works have demonstrated fully connected, local multi-user networks based on multiplexing, extending such networks to a global network architecture of interconnected local networks remains an outstanding challenge. Here we demonstrate the next step in the evolution of multiplexed quantum networks—a prototype global reconfigurable network in which entanglement is routed and teleported in a flexible and multiplexed manner between two local four-user networks. At the heart of our network is a programmable 8 × 8-dimensional multi-port circuit that harnesses the natural mode-mixing process inside of a multi-mode fibre to implement on-demand high-dimensional operations on two independent photons carrying eight transverse-spatial modes. Our circuit design allows us to break away from the limited planar geometry and bypass the control and fabrication challenges of conventional integrated photonic platforms. Our demonstration highlights the potential of this architecture for enabling large-scale, global quantum networks that offer versatile connectivity while being fully compatible with an existing communications infrastructure. A reconfigurable eight-user photonic network is realized by connecting two local four-user networks through a programmable 8 × 8-dimensional multi-port device. Multiplexed routing and swapping of qubit entanglement are demonstrated for all network configurations and channels.
{"title":"A large-scale reconfigurable multiplexed quantum photonic network","authors":"Natalia Herrera Valencia, Annameng Ma, Suraj Goel, Saroch Leedumrongwatthanakun, Francesco Graffitti, Alessandro Fedrizzi, Will McCutcheon, Mehul Malik","doi":"10.1038/s41566-025-01806-x","DOIUrl":"10.1038/s41566-025-01806-x","url":null,"abstract":"The distribution of entanglement in quantum networks will enable the next generation of technologies in quantum-secured communications, distributed quantum computing and sensing. Future quantum networks will require dense connectivity, allowing multiple users to share entanglement in a reconfigurable and multiplexed manner, while long-distance connections are established through the teleportation of entanglement, or entanglement swapping. Although several recent works have demonstrated fully connected, local multi-user networks based on multiplexing, extending such networks to a global network architecture of interconnected local networks remains an outstanding challenge. Here we demonstrate the next step in the evolution of multiplexed quantum networks—a prototype global reconfigurable network in which entanglement is routed and teleported in a flexible and multiplexed manner between two local four-user networks. At the heart of our network is a programmable 8 × 8-dimensional multi-port circuit that harnesses the natural mode-mixing process inside of a multi-mode fibre to implement on-demand high-dimensional operations on two independent photons carrying eight transverse-spatial modes. Our circuit design allows us to break away from the limited planar geometry and bypass the control and fabrication challenges of conventional integrated photonic platforms. Our demonstration highlights the potential of this architecture for enabling large-scale, global quantum networks that offer versatile connectivity while being fully compatible with an existing communications infrastructure. A reconfigurable eight-user photonic network is realized by connecting two local four-user networks through a programmable 8 × 8-dimensional multi-port device. Multiplexed routing and swapping of qubit entanglement are demonstrated for all network configurations and channels.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 2","pages":"202-207"},"PeriodicalIF":32.9,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-025-01806-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145599629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
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