High-resolution short-wave infrared hyperspectral imaging enables non-destructive material identification and imaging through scattering media, paving the way for transformative applications in portable diagnostics, precision agriculture, environmental monitoring and space exploration. However, conventional hyperspectral imagers face a compromise between spatial resolution, spectral resolution and device footprint. Here we report a miniaturized hyperspectral image sensor that mitigates this trade-off by leveraging monolithically integrated, bias-reconfigurable stacked colloidal quantum dot junctions and a bias-programmable spectral reconstruction algorithm. By applying a defined sequence of single-polarity increasing bias voltages, the interfacial band alignment can be tuned, thus mediating the collection of photon-generated carriers in colloidal quantum dot layers with different energy gap. Our imager achieves spatial resolution of 1,280 × 1,024, spectral resolution of 1 nm, reconstruction accuracy of 0.055 nm, peak detectivity above 10¹³ jones and broadband coverage (400–1,700 nm), all within a compact pixel footprint of 15 × 15 µm². The high signal-to-noise ratio and spatial resolution result in accurate reconstruction of hyperspectral image information, enabling food quality monitoring, chemical solvents discrimination and materials identification.
{"title":"Hyperspectral quantum-dot image sensors via in-pixel reconfigurable band-alignment","authors":"Ge Mu, Cheng Bi, Jintao Zou, Yanfei Liu, Qun Hao, Xin Tang","doi":"10.1038/s41566-026-01860-z","DOIUrl":"https://doi.org/10.1038/s41566-026-01860-z","url":null,"abstract":"High-resolution short-wave infrared hyperspectral imaging enables non-destructive material identification and imaging through scattering media, paving the way for transformative applications in portable diagnostics, precision agriculture, environmental monitoring and space exploration. However, conventional hyperspectral imagers face a compromise between spatial resolution, spectral resolution and device footprint. Here we report a miniaturized hyperspectral image sensor that mitigates this trade-off by leveraging monolithically integrated, bias-reconfigurable stacked colloidal quantum dot junctions and a bias-programmable spectral reconstruction algorithm. By applying a defined sequence of single-polarity increasing bias voltages, the interfacial band alignment can be tuned, thus mediating the collection of photon-generated carriers in colloidal quantum dot layers with different energy gap. Our imager achieves spatial resolution of 1,280 × 1,024, spectral resolution of 1 nm, reconstruction accuracy of 0.055 nm, peak detectivity above 10¹³ jones and broadband coverage (400–1,700 nm), all within a compact pixel footprint of 15 × 15 µm². The high signal-to-noise ratio and spatial resolution result in accurate reconstruction of hyperspectral image information, enabling food quality monitoring, chemical solvents discrimination and materials identification.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"99 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394045","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 : 2026-03-11DOI: 10.1038/s41566-026-01855-w
Alexander S. Kuznetsov, Ignacio Carraro-Haddad, Gonzalo Usaj, Klaus Biermann, Alejandro Fainstein, Paulo V. Santos
The on-demand selective population transfer between states in multilevel quantum systems is a challenging problem with implications for a wide range of physical platforms including photon and non-equilibrium exciton–polariton condensates. Here we introduce a universal strategy for this selective transfer based on a strong time-periodic energy modulation, which is experimentally demonstrated by using a gigahertz acoustic wave to control the gain and loss of confined modes of exciton–polariton condensates in a microcavity. The harmonic acoustic field shifts the energy of the excitonic component relative to the photonic ones, which generates a dynamic population transfer within a multimode condensate that can be controlled by the acoustic amplitude. In this way, the full condensate population can be selectively transferred to the ground state to yield a single-level emission consisting of a spectral frequency comb with gigahertz repetition rates as well as picosecond-scale correlations. A theoretical model reproduces the observed time evolution and reveals a dynamical interplay between bosonic stimulation and the adiabatic Landau–Zener-like population transfer. Our approach provides a new avenue for the Floquet engineering of light–matter systems and enables tunable single- or multiwavelength ultrafast pulsed laser-like emission for information technologies.
{"title":"Ground-state exciton–polariton condensation via coherent Floquet driving","authors":"Alexander S. Kuznetsov, Ignacio Carraro-Haddad, Gonzalo Usaj, Klaus Biermann, Alejandro Fainstein, Paulo V. Santos","doi":"10.1038/s41566-026-01855-w","DOIUrl":"https://doi.org/10.1038/s41566-026-01855-w","url":null,"abstract":"The on-demand selective population transfer between states in multilevel quantum systems is a challenging problem with implications for a wide range of physical platforms including photon and non-equilibrium exciton–polariton condensates. Here we introduce a universal strategy for this selective transfer based on a strong time-periodic energy modulation, which is experimentally demonstrated by using a gigahertz acoustic wave to control the gain and loss of confined modes of exciton–polariton condensates in a microcavity. The harmonic acoustic field shifts the energy of the excitonic component relative to the photonic ones, which generates a dynamic population transfer within a multimode condensate that can be controlled by the acoustic amplitude. In this way, the full condensate population can be selectively transferred to the ground state to yield a single-level emission consisting of a spectral frequency comb with gigahertz repetition rates as well as picosecond-scale correlations. A theoretical model reproduces the observed time evolution and reveals a dynamical interplay between bosonic stimulation and the adiabatic Landau–Zener-like population transfer. Our approach provides a new avenue for the Floquet engineering of light–matter systems and enables tunable single- or multiwavelength ultrafast pulsed laser-like emission for information technologies.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"16 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394046","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 : 2026-03-11DOI: 10.1038/s41566-026-01854-x
Quan Lin, Tianyu Li, Haiping Hu, Wei Yi, Peng Xue
Floquet non-Abelian topological phases emerge in periodically driven systems and exhibit properties that are absent from their Abelian or static counterparts. Dubbed the Floquet non-Abelian topological insulators (FNATIs), they are characterized by non-Abelian topological charges with intricate bulk-boundary correspondence, making their experimental observation challenging. Here we simulate the FNATI using a higher-dimensional photonic quantum walk and develop dynamic measurement schemes to demonstrate key signatures of the FNATI. Importantly, combining a direct bulk-dynamic detection for the underlying quaternion topological charge, and a spatially resolved injection spectroscopy for the edge states, we experimentally confirm the bulk-boundary correspondence through a Floquet non-Abelian topological invariant, which is also capable of characterizing the observed anomalous non-Abelian phase. This study experimentally characterizes the FNATI, providing general insight into gapped non-Abelian topological phases.
{"title":"Simulation of a Floquet non-Abelian topological insulator with photonic quantum walks","authors":"Quan Lin, Tianyu Li, Haiping Hu, Wei Yi, Peng Xue","doi":"10.1038/s41566-026-01854-x","DOIUrl":"https://doi.org/10.1038/s41566-026-01854-x","url":null,"abstract":"Floquet non-Abelian topological phases emerge in periodically driven systems and exhibit properties that are absent from their Abelian or static counterparts. Dubbed the Floquet non-Abelian topological insulators (FNATIs), they are characterized by non-Abelian topological charges with intricate bulk-boundary correspondence, making their experimental observation challenging. Here we simulate the FNATI using a higher-dimensional photonic quantum walk and develop dynamic measurement schemes to demonstrate key signatures of the FNATI. Importantly, combining a direct bulk-dynamic detection for the underlying quaternion topological charge, and a spatially resolved injection spectroscopy for the edge states, we experimentally confirm the bulk-boundary correspondence through a Floquet non-Abelian topological invariant, which is also capable of characterizing the observed anomalous non-Abelian phase. This study experimentally characterizes the FNATI, providing general insight into gapped non-Abelian topological phases.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"8 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394053","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 : 2026-03-11DOI: 10.1038/s41566-026-01870-x
Cong Geng, Changjiu Sun, Keyu Wei, Kai Zhang, Xue Han, Zijin Ding, Saisai Li, Saif M. H. Qaid, Zheng Yang, Tingwei He, Shaopeng Yang, Yuanzhi Jiang, Mingjian Yuan
Triple-junction tandem light-emitting diodes (LEDs) with simultaneous red, green and blue emission are ideal back-lights for next-generation ultrahigh-definition displays. Although metal halide provost’s are promising candidates for such devices, the solution processing of multilayer stacks remains a fundamental challenge, leading to pronounced efficiency losses in all-perovskite tandem LEDs. Here we present a manufacturing-compatible transfer-printing approach for monolithic integration. We first identify that performance degradation during conventional transfer printing stems from strong interfacial adhesion. To overcome this, we engineer a damage-free transfer process using a temperature-triggered ‘solid–liquid’-switchable interface. This interface, formed via methylamine-assisted transient liquefaction, minimises interfacial stress and facilitates surface regression. We also design an interconnecting layer stack that incorporates interfacial dipoles and tunnelling injection, reducing the global voltage loss to only ~0.5 V compared with all single-junction counterparts. We demonstrate a triple-junction all-perovskite white LED with an ultrawide colour gamut covering 143% of the NTSC standard, a maximum luminance exceeding 67,000 cd m−2 and a certified external quantum efficiency of 16.4%. A proof-of-concept 2.0 × 2.0 cm2 display prototype on both rigid and flexible substrates further underscores the scalability of our strategy for perovskite displays.
同时具有红、绿、蓝三色发光的三结串联发光二极管（led）是下一代超高清显示器的理想背光源。虽然金属卤化物是这种器件的有希望的候选者，但多层堆叠的溶液处理仍然是一个根本性的挑战，导致全钙钛矿串联led的显着效率损失。在这里，我们提出了一种制造兼容的转移打印方法，用于单片集成。我们首先确定，性能下降在传统转移印刷过程中源于强界面附着力。为了克服这个问题，我们设计了一种无损伤的传输过程，使用温度触发的“固-液”可切换界面。该界面通过甲胺辅助瞬态液化形成，使界面应力最小化，有利于表面回归。我们还设计了一个集成界面偶极子和隧道注入的互连层堆栈，与所有单结相比，将全局电压损失降低到仅~0.5 V。我们展示了一种三结全钙钛矿白光LED，其超宽色域覆盖了NTSC标准的143%，最大亮度超过67,000 cd m−2，认证的外部量子效率为16.4%。在刚性和柔性基板上的2.0 × 2.0 cm2显示原型进一步强调了我们钙钛矿显示策略的可扩展性。
{"title":"Efficient white light-emitting diodes based on all-perovskite triple-junction tandems","authors":"Cong Geng, Changjiu Sun, Keyu Wei, Kai Zhang, Xue Han, Zijin Ding, Saisai Li, Saif M. H. Qaid, Zheng Yang, Tingwei He, Shaopeng Yang, Yuanzhi Jiang, Mingjian Yuan","doi":"10.1038/s41566-026-01870-x","DOIUrl":"https://doi.org/10.1038/s41566-026-01870-x","url":null,"abstract":"Triple-junction tandem light-emitting diodes (LEDs) with simultaneous red, green and blue emission are ideal back-lights for next-generation ultrahigh-definition displays. Although metal halide provost’s are promising candidates for such devices, the solution processing of multilayer stacks remains a fundamental challenge, leading to pronounced efficiency losses in all-perovskite tandem LEDs. Here we present a manufacturing-compatible transfer-printing approach for monolithic integration. We first identify that performance degradation during conventional transfer printing stems from strong interfacial adhesion. To overcome this, we engineer a damage-free transfer process using a temperature-triggered ‘solid–liquid’-switchable interface. This interface, formed via methylamine-assisted transient liquefaction, minimises interfacial stress and facilitates surface regression. We also design an interconnecting layer stack that incorporates interfacial dipoles and tunnelling injection, reducing the global voltage loss to only ~0.5 V compared with all single-junction counterparts. We demonstrate a triple-junction all-perovskite white LED with an ultrawide colour gamut covering 143% of the NTSC standard, a maximum luminance exceeding 67,000 cd m−2 and a certified external quantum efficiency of 16.4%. A proof-of-concept 2.0 × 2.0 cm2 display prototype on both rigid and flexible substrates further underscores the scalability of our strategy for perovskite displays.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"315 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394048","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}
Superconducting quantum processors are a leading platform for implementing practical quantum computation algorithms. Although superconducting quantum processors with hundreds of qubits have been demonstrated, their further scale-up is constrained by the physical size and cooling power of dilution refrigerators. This constraint can be overcome by constructing a quantum network to interconnect qubits hosted in different refrigerators, which requires microwave-to-optical transducers to enable low-loss signal transmission over long distances. Although various designs and demonstrations have achieved high-efficiency and low-added-noise transducers, a coherent photonic link between separate refrigerators has not yet been realized. Here we experimentally demonstrate coherent signal transfer between two superconducting circuits housed in separate dilution refrigerators, enabled by a pair of frequency-matched aluminium nitride electro-optic transducers connected via a 1-km telecom optical fibre. The optical frequency matching between two transducers is realized by an asymmetric photonic molecule design, and an overall 80 dB improvement in transduction efficiency over commercial electro-optic modulators is achieved, paving the way towards a fully quantum-enabled link. This work provides critical design guidelines for scalable superconducting quantum networks interconnected by photonic links.
{"title":"A 1-km photonic link connecting superconducting circuits in two dilution refrigerators","authors":"Yiyu Zhou, Yufeng Wu, Chunzhen Li, Mohan Shen, Likai Yang, Jiacheng Xie, Hong X. Tang","doi":"10.1038/s41566-026-01866-7","DOIUrl":"https://doi.org/10.1038/s41566-026-01866-7","url":null,"abstract":"Superconducting quantum processors are a leading platform for implementing practical quantum computation algorithms. Although superconducting quantum processors with hundreds of qubits have been demonstrated, their further scale-up is constrained by the physical size and cooling power of dilution refrigerators. This constraint can be overcome by constructing a quantum network to interconnect qubits hosted in different refrigerators, which requires microwave-to-optical transducers to enable low-loss signal transmission over long distances. Although various designs and demonstrations have achieved high-efficiency and low-added-noise transducers, a coherent photonic link between separate refrigerators has not yet been realized. Here we experimentally demonstrate coherent signal transfer between two superconducting circuits housed in separate dilution refrigerators, enabled by a pair of frequency-matched aluminium nitride electro-optic transducers connected via a 1-km telecom optical fibre. The optical frequency matching between two transducers is realized by an asymmetric photonic molecule design, and an overall 80 dB improvement in transduction efficiency over commercial electro-optic modulators is achieved, paving the way towards a fully quantum-enabled link. This work provides critical design guidelines for scalable superconducting quantum networks interconnected by photonic links.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"55 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147381761","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 : 2026-03-06DOI: 10.1038/s41566-026-01856-9
Louise Schul, Geun Ho Ahn
Implementing stable laser operation requires optical isolators to protect against destabilizing back-reflection signals. Now, CMOS optical circuits provide a simple and insensitive pathway towards robust protection.
{"title":"Back-reflection immunity in CMOS photonics via engineered laser feedback","authors":"Louise Schul, Geun Ho Ahn","doi":"10.1038/s41566-026-01856-9","DOIUrl":"10.1038/s41566-026-01856-9","url":null,"abstract":"Implementing stable laser operation requires optical isolators to protect against destabilizing back-reflection signals. Now, CMOS optical circuits provide a simple and insensitive pathway towards robust protection.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 3","pages":"247-248"},"PeriodicalIF":32.9,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363381","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 : 2026-03-06DOI: 10.1038/s41566-026-01858-7
Mikael C. Rechtsman
Photonic topological structures based on solid-state Chern insulators allow light to flow in only one direction along their edges, making them intrinsically resistant to scattering and localization by imperfections. Now, a photonic version of a Chern insulator has been realized in a complex multi-core fibre.
{"title":"Twisted fibre photonic Chern insulator","authors":"Mikael C. Rechtsman","doi":"10.1038/s41566-026-01858-7","DOIUrl":"10.1038/s41566-026-01858-7","url":null,"abstract":"Photonic topological structures based on solid-state Chern insulators allow light to flow in only one direction along their edges, making them intrinsically resistant to scattering and localization by imperfections. Now, a photonic version of a Chern insulator has been realized in a complex multi-core fibre.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 3","pages":"243-244"},"PeriodicalIF":32.9,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363383","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 : 2026-03-06DOI: 10.1038/s41566-026-01842-1
Chen Zou, Dawei Di
A capillary-driven nanoimprint technology creates high-efficiency nanoscale quantum-dot light-emitting diodes (QLEDs) with sub-100-nm pixels, enabling ultrahigh resolutions of nearly 170,000 pixels per inch (PPI) for next-generation displays.
Pub Date : 2026-03-06DOI: 10.1038/s41566-026-01865-8
Hongyu Shi, Haolong Wang, Zhihao Lan
Valley dispersion engineering enables seamless transition between guided and leaky topological edge states, providing a viable route for the application of topological devices in terahertz communications.
{"title":"Topological antennas empower communications","authors":"Hongyu Shi, Haolong Wang, Zhihao Lan","doi":"10.1038/s41566-026-01865-8","DOIUrl":"10.1038/s41566-026-01865-8","url":null,"abstract":"Valley dispersion engineering enables seamless transition between guided and leaky topological edge states, providing a viable route for the application of topological devices in terahertz communications.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 3","pages":"245-246"},"PeriodicalIF":32.9,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363380","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}
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