Nature PhotonicsPub Date : 2025-05-14DOI: 10.1038/s41566-025-01677-2
Shiekh Zia Uddin, Nicholas Rivera, Devin Seyler, Jamison Sloan, Yannick Salamin, Charles Roques-Carmes, Shutao Xu, Michelle Y. Sander, Ido Kaminer, Marin Soljačić
{"title":"Noise-immune quantum correlations of intense light","authors":"Shiekh Zia Uddin, Nicholas Rivera, Devin Seyler, Jamison Sloan, Yannick Salamin, Charles Roques-Carmes, Shutao Xu, Michelle Y. Sander, Ido Kaminer, Marin Soljačić","doi":"10.1038/s41566-025-01677-2","DOIUrl":"10.1038/s41566-025-01677-2","url":null,"abstract":"Lasers with high intensity generally exhibit strong intensity fluctuations far above the shot-noise level. Taming this noise is pivotal to a wide range of applications, both classical and quantum. Here we demonstrate the creation of intense light with quantum levels of noise even when starting from inputs with large amounts of excess noise. In particular, we demonstrate how intense squeezed light with intensities approaching 0.1 TW cm−2, but noise at or below the shot-noise level, can be produced from noisy inputs associated with high-power amplified laser sources (an overall noise reduction of 30-fold). On the basis of a new theory of quantum noise in multimode systems, we show that the ability to generate quantum light from noisy inputs results from multimode quantum correlations, which maximally decouple the output light from the dominant noise channels in the input light. As an example, we demonstrate this effect for femtosecond pulses in nonlinear fibres, but the noise-immune correlations that enable our results are generic to many other nonlinear systems in optics and beyond. Intense squeezed light with focusable intensities of 0.1 TW cm−2 is created by propagating a classical, intense and noisy input beam through an optical fibre. The noise 4 dB below the shot-noise level is achieved by selecting a set of wavelengths whose intensity fluctuations are maximally anticorrelated.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 7","pages":"751-757"},"PeriodicalIF":32.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945771","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}
{"title":"Ultrahigh-radiance near-infrared organic light-emitting diodes","authors":"Wansheng Liu, Wanyuan Deng, Weiping Wang, Haimei Wu, Chao Gao, Yuan Xie, Jichen Zhao, Xiaobin Dong, Zujin Zhao, Zhong Zheng, Yun Chi, Lian Duan, Xiaowei Zhan, Yingping Zou, Hongbin Wu, Junbiao Peng, Yong Cao","doi":"10.1038/s41566-025-01674-5","DOIUrl":"10.1038/s41566-025-01674-5","url":null,"abstract":"Near-infrared organic light-emitting diodes are attractive for a broad range of applications, including night-time surveillance and biomedical diagnostic and imaging systems. However, obtaining high device radiance, which is necessary for many applications, and maintaining high operational stability is challenging due to the rapid efficiency roll-off at a high current density. Here we develop near-infrared organic light-emitting diodes based on an acceptor–donor–acceptor organic semiconductor with greatly suppressed singlet–triplet annihilation rate and triplet lifetime, alleviating singlet quenching by long-lived triplets, thereby enabling an ultrahigh singlet density at high electrical excitation levels. Our devices exhibit J50 values of 59.2 A cm−2, that is, the current density at which the external quantum efficiency decreases to half its peak value of 1.34%. A high external quantum efficiency is also maintained over a six orders of magnitude range of current densities, at values above 5,000 A cm−2. The devices emit with the maximum radiance beyond 2,000 W sr−1 m−2 under a continuous electrical bias and 46,700 W sr−1 m−2 in the pulsed electrical operation. The half-lifetime is 35 h for an initial radiance of 100 W sr−1 m−2. We also achieve a high electrically injected singlet density of more than 1016 cm−3 at 1,000 A cm−2, which can sustain population inversion, indicating potential for organic lasers. These results pave the way for further developments of near-infrared organic light-emitting diodes as well as offer a potential route towards electrically driven organic laser diodes. An acceptor–donor–acceptor organic semiconductor enables near-infrared organic light-emitting diodes with reduced efficiency roll-off over six orders of magnitude of excitation current density, enabling a maximum luminance of 2,000 W sr−1 m−2.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 6","pages":"650-657"},"PeriodicalIF":32.9,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939952","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}
Nature PhotonicsPub Date : 2025-05-13DOI: 10.1038/s41566-025-01673-6
Samuel Lemieux, Sohail A. Jalil, David N. Purschke, Neda Boroumand, T. J. Hammond, David Villeneuve, Andrei Naumov, Thomas Brabec, Giulio Vampa
{"title":"Photon bunching in high-harmonic emission controlled by quantum light","authors":"Samuel Lemieux, Sohail A. Jalil, David N. Purschke, Neda Boroumand, T. J. Hammond, David Villeneuve, Andrei Naumov, Thomas Brabec, Giulio Vampa","doi":"10.1038/s41566-025-01673-6","DOIUrl":"10.1038/s41566-025-01673-6","url":null,"abstract":"Attosecond spectroscopy comprises several techniques to probe matter using electrons and photons. One frontier of attosecond methods is to reveal complex phenomena arising from quantum-mechanical correlations in the matter system, in the photon fields and among them. Recent theories have laid the groundwork for understanding how quantum-optical properties affect high-field photonics, such as strong-field ionization and acceleration of electrons in quantum-optical fields, and how entanglement between the field modes arises during the interaction. Here we demonstrate a new experimental approach that transduces some properties of a quantum-optical state through a strong-field nonlinearity. We perturb high-harmonic emission from a semiconductor with a bright squeezed vacuum field, resulting in the emission of sidebands of the high harmonics with super-Poissonian statistics, indicating that the emitted photons are bunched. Our results suggest that perturbing strong-field dynamics with quantum-optical states is a viable way to coherently control the generation of these states at short wavelengths, such as extreme ultraviolet or soft X-rays. Quantum correlations will be instrumental to advance attosecond spectroscopy and imaging beyond the classical limits. When high-harmonic emission from a ZnO crystal is perturbed with a bright squeezed vacuum beam, a comb of super-bunched high-order sidebands is created. This indicates photon bunching and the generation of a non-coherent state at the short wavelength.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 7","pages":"767-771"},"PeriodicalIF":32.9,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939953","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}
Nature PhotonicsPub Date : 2025-05-07DOI: 10.1038/s41566-025-01662-9
Bill Corcoran, Arnan Mitchell, Roberto Morandotti, Leif K. Oxenløwe, David J. Moss
{"title":"Optical microcombs for ultrahigh-bandwidth communications","authors":"Bill Corcoran, Arnan Mitchell, Roberto Morandotti, Leif K. Oxenløwe, David J. Moss","doi":"10.1038/s41566-025-01662-9","DOIUrl":"10.1038/s41566-025-01662-9","url":null,"abstract":"Microcombs—optical frequency combs generated by nonlinear integrated microcavity resonators—have the potential to offer the full capability of their benchtop counterparts, but in an integrated footprint. They have enabled breakthroughs in spectroscopy, microwave photonics, frequency synthesis, optical ranging, quantum sources, metrology, optical neuromorphic processing and more. One of their most successful applications is in optical-fibre communications, where they have formed the basis for massively parallel ultrahigh-capacity multiplexed data transmission. Innovative approaches have been used in recent years to phase-lock or mode-lock different types of microcombs, from dissipative Kerr solitons to dark solitons, soliton crystals and others, and this has enabled their use as sources for advanced coherent modulation-format optical communications systems, which have achieved ultrahigh data capacity bit rates breaking the petabit-per-second barrier. Here we review this new and exciting field, chronicling the progress and highlighting the challenges and opportunities. This Review summarizes the recent progress in ultrahigh-bandwidth optical-fibre communications based on integrated optical frequency comb technologies, or integrated Kerr microcombs, highlighting the challenges and opportunities ahead.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 5","pages":"451-462"},"PeriodicalIF":32.9,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143920445","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}
Nature PhotonicsPub Date : 2025-05-07DOI: 10.1038/s41566-025-01648-7
Filippo Cardano, Lorenzo Marrucci
{"title":"Twisting entangled photons on a chip","authors":"Filippo Cardano, Lorenzo Marrucci","doi":"10.1038/s41566-025-01648-7","DOIUrl":"10.1038/s41566-025-01648-7","url":null,"abstract":"A programmable quantum chip has been developed that generates, manipulates, and launches five-dimensional entangled photons into free-space channels, encoded as optical vortex modes, thus bridging the worlds of integrated and free-space quantum photonics.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 5","pages":"447-449"},"PeriodicalIF":32.9,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143920161","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}
Nature PhotonicsPub Date : 2025-05-07DOI: 10.1038/s41566-025-01661-w
Daniel J. McCloskey
{"title":"Seeing quick beats with atomically thick sheets","authors":"Daniel J. McCloskey","doi":"10.1038/s41566-025-01661-w","DOIUrl":"10.1038/s41566-025-01661-w","url":null,"abstract":"Local measurements of biological voltage production are key drivers of understanding in neurobiology and neurological and cardiac pathophysiology. Researchers have now shown that exciton–trion conversion in a two-dimensional semiconductor, MoS2, can be used to optically image cardiomyocyte action-potentials in real-time.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 5","pages":"445-446"},"PeriodicalIF":32.9,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143920416","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}
Nature PhotonicsPub Date : 2025-05-07DOI: 10.1038/s41566-025-01664-7
Zhe Zhang, Romain Fleury
{"title":"A rendezvous with light","authors":"Zhe Zhang, Romain Fleury","doi":"10.1038/s41566-025-01664-7","DOIUrl":"10.1038/s41566-025-01664-7","url":null,"abstract":"Topological localization of photons in both space and time has now been experimentally realized through synthetic photonic quantum walks, enabled by non-Hermitian gain–loss modulations. This investigation into time and space-time topology reveals unique phenomena beyond conventional spatial topological effects, including causality-suppressed coupling.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 5","pages":"441-442"},"PeriodicalIF":32.9,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143920110","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}
Nature PhotonicsPub Date : 2025-05-07DOI: 10.1038/s41566-025-01666-5
Olivier Pfister
{"title":"Quantum cluster states engineered in three dimensions","authors":"Olivier Pfister","doi":"10.1038/s41566-025-01666-5","DOIUrl":"10.1038/s41566-025-01666-5","url":null,"abstract":"The experimental realization of a 3D cluster quantum state paves the way for information processing employing quantum error correction.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 5","pages":"443-444"},"PeriodicalIF":32.9,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143920109","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}
Nature PhotonicsPub Date : 2025-05-02DOI: 10.1038/s41566-025-01672-7
Ying Yang, Yuanqing Ma, Alexander Macmillan, Richard Tilley, J. Justin Gooding
{"title":"Electrochemical fluorescence modulation enables simultaneous multicolour imaging","authors":"Ying Yang, Yuanqing Ma, Alexander Macmillan, Richard Tilley, J. Justin Gooding","doi":"10.1038/s41566-025-01672-7","DOIUrl":"10.1038/s41566-025-01672-7","url":null,"abstract":"Multicolour fluorescence imaging is crucial to simultaneously visualize multiple targets in cells, enabling the study of complicated cellular processes. Common multicolour methods rely on using fluorophores with sufficiently different spectral or lifetime characteristics. Here we present a new multicolour imaging strategy on a standard fluorescence microscope, where up to four fluorophores with high spectral overlap can be resolved using a single-colour optical configuration. We find that under electrochemical modulation, the fluorophores are regulated between the bright and dim states, with each displaying a distinct fluorescence response pattern. These unique fluorescence potential profiles enable the effective separation of different fluorophores through linear unmixing. We also demonstrate that electrochemical fluorescence switching is readily applicable to four-colour STED imaging. With no modification to the optical setups and easy adaptation to different microscopes, we anticipate that colour unmixing based on electrochemical fluorescence switching will provide an easily accessible multicolour imaging pathway for discoveries in diverse fields. Electrochemical modulation of fluorophores enables regulating their emission states, facilitating spectral unmixing of up to four fluorophores with similar spectral characteristics. This method is readily applicable to multicolour STED imaging, effectively expanding a single imaging channel to four channels.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"19 7","pages":"718-724"},"PeriodicalIF":32.9,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-025-01672-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143897996","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}