Light, science & applications最新文献_第10页

Versatile photonic molecule switch in multimode microresonators. 多模微谐振器中的多功能光子分子开关

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-02-20 DOI: 10.1038/s41377-024-01399-0

Zihan Tao, Bitao Shen, Wencan Li, Luwen Xing, Haoyu Wang, Yichen Wu, Yuansheng Tao, Yan Zhou, Yandong He, Chao Peng, Haowen Shu, Xingjun Wang

{"title":"Versatile photonic molecule switch in multimode microresonators.","authors":"Zihan Tao, Bitao Shen, Wencan Li, Luwen Xing, Haoyu Wang, Yichen Wu, Yuansheng Tao, Yan Zhou, Yandong He, Chao Peng, Haowen Shu, Xingjun Wang","doi":"10.1038/s41377-024-01399-0","DOIUrl":"10.1038/s41377-024-01399-0","url":null,"abstract":"Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental optical phenomena analogous to atomic physics. Previously, the distinct energy levels and interactions in such two-level systems were provided by coupled microresonators. The reconfigurability is limited, as they often require delicate external field stimuli or mechanically altering the geometric factors. These highly specific approaches also limit potential applications. Here, we propose a versatile on-chip photonic molecule in a multimode microring, utilizing a flexible regulation methodology to dynamically control the existence and interaction strength of spatial modes. The transition between single/multi-mode states enables the \"switched-off/on\" functionality of the photonic molecule, supporting wider generalized applications scenarios. In particular, \"switched-on\" state shows flexible and multidimensional mode splitting control in aspects of both coupling strength and phase difference, equivalent to the a.c. and d.c. Stark effect. \"Switched-off\" state allows for perfect low-loss single-mode transition (Qi ~ 10 million) under an ultra-compact bend size (FSR ~ 115 GHz) in a foundry-based silicon microring. It breaks the stereotyped image of the FSR-Q factor trade-off, enabling ultra-wideband and high-resolution millimeter-wave photonic operations. Our demonstration provides a flexible and portable solution for the integrated photonic molecule system, extending its research scope from fundamental physics to real-world applications such as nonlinear optical signal processing and sixth-generation wireless communication.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"51"},"PeriodicalIF":19.4,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10876944/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905993","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}

引用次数: 0

Nonlinear Rydberg exciton-polaritons in Cu₂O microcavities. Cu2O 微腔中的非线性 Rydberg 激子-极化子。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-02-06 DOI: 10.1038/s41377-024-01382-9

Maxim Makhonin, Anthonin Delphan, Kok Wee Song, Paul Walker, Tommi Isoniemi, Peter Claronino, Konstantinos Orfanakis, Sai Kiran Rajendran, Hamid Ohadi, Julian Heckötter, Marc Assmann, Manfred Bayer, Alexander Tartakovskii, Maurice Skolnick, Oleksandr Kyriienko, Dmitry Krizhanovskii

{"title":"Nonlinear Rydberg exciton-polaritons in Cu2O microcavities.","authors":"Maxim Makhonin, Anthonin Delphan, Kok Wee Song, Paul Walker, Tommi Isoniemi, Peter Claronino, Konstantinos Orfanakis, Sai Kiran Rajendran, Hamid Ohadi, Julian Heckötter, Marc Assmann, Manfred Bayer, Alexander Tartakovskii, Maurice Skolnick, Oleksandr Kyriienko, Dmitry Krizhanovskii","doi":"10.1038/s41377-024-01382-9","DOIUrl":"10.1038/s41377-024-01382-9","url":null,"abstract":"Rydberg excitons (analogues of Rydberg atoms in condensed matter systems) are highly excited bound electron-hole states with large Bohr radii. The interaction between them as well as exciton coupling to light may lead to strong optical nonlinearity, with applications in sensing and quantum information processing. Here, we achieve strong effective photon-photon interactions (Kerr-like optical nonlinearity) via the Rydberg blockade phenomenon and the hybridisation of excitons and photons forming polaritons in a Cu2O-filled microresonator. Under pulsed resonant excitation polariton resonance frequencies are renormalised due to the reduction of the photon-exciton coupling with increasing exciton density. Theoretical analysis shows that the Rydberg blockade plays a major role in the experimentally observed scaling of the polariton nonlinearity coefficient as ∝ n4.4±1.8 for principal quantum numbers up to n = 7. Such high principal quantum numbers studied in a polariton system for the first time are essential for realisation of high Rydberg optical nonlinearities, which paves the way towards quantum optical applications and fundamental studies of strongly correlated photonic (polaritonic) states in a solid state system.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"47"},"PeriodicalIF":19.4,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10847413/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139697818","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}

引用次数: 0

Continuous-wave operation of 1550 nm low-threshold triple-lattice photonic-crystal surface-emitting lasers. 1550 nm 低阈值三晶格光子晶体表面发射激光器的连续波操作。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-02-05 DOI: 10.1038/s41377-024-01387-4

Ziye Wang, Xia Liu, Pinyao Wang, Huanyu Lu, Bo Meng, Wei Zhang, Lijie Wang, Yanjing Wang, Cunzhu Tong

{"title":"Continuous-wave operation of 1550 nm low-threshold triple-lattice photonic-crystal surface-emitting lasers.","authors":"Ziye Wang, Xia Liu, Pinyao Wang, Huanyu Lu, Bo Meng, Wei Zhang, Lijie Wang, Yanjing Wang, Cunzhu Tong","doi":"10.1038/s41377-024-01387-4","DOIUrl":"10.1038/s41377-024-01387-4","url":null,"abstract":"Benefitting from narrow beam divergence, photonic crystal surface-emitting lasers are expected to play an essential role in the ever-growing fields of optical communication and light detection and ranging. Lasers operating with 1.55 μm wavelengths have attracted particular attention due to their minimum fiber loss and high eye-safe threshold. However, high interband absorption significantly decreases their performance at this 1.55 μm wavelength. Therefore, stronger optical feedback is needed to reduce their threshold and thus improve the output power. Toward this goal, photonic-crystal resonators with deep holes and high dielectric contrast are often used. Nevertheless, the relevant techniques for high-contrast photonic crystals inevitably complicate fabrication and reduce the final yield. In this paper, we demonstrate the first continuous-wave operation of 1.55 μm photonic-crystal surface-emitting lasers by using a 'triple-lattice photonic-crystal resonator', which superimposes three lattice point groups to increase the strength of in-plane optical feedback. Using this geometry, the in-plane 180° coupling can be enhanced threefold compared to the normal single-lattice structure. Detailed theoretical and experimental investigations demonstrate the much lower threshold current density of this structure compared to 'single-lattice' and 'double-lattice' photonic-crystal resonators, verifying our design principles. Our findings provide a new strategy for photonic crystal laser miniaturization, which is crucial for realizing their use in future high-speed applications.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"44"},"PeriodicalIF":19.4,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11251162/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139681327","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}

引用次数: 0

Mapping super-resolution image quality. 绘制超分辨率图像质量。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-02-01 DOI: 10.1038/s41377-024-01379-4

Megan A Steves, Ke Xu

引用次数: 0

Complex-frequency waves: beat loss and win sensitivity. 复频波：节拍损失和赢敏感性。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-02-01 DOI: 10.1038/s41377-024-01388-3

Qingqing Cheng, Tao Li

引用次数: 0

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-01-31 DOI: 10.1038/s41377-024-01376-7

Yifan Sun, Qian Li, Ling-Jun Kong, Xiangdong Zhang

{"title":"Correlated optical convolutional neural network with \"quantum speedup\".","authors":"Yifan Sun, Qian Li, Ling-Jun Kong, Xiangdong Zhang","doi":"10.1038/s41377-024-01376-7","DOIUrl":"10.1038/s41377-024-01376-7","url":null,"abstract":"Compared with electrical neural networks, optical neural networks (ONNs) have the potentials to break the limit of the bandwidth and reduce the consumption of energy, and therefore draw much attention in recent years. By far, several types of ONNs have been implemented. However, the current ONNs cannot realize the acceleration as powerful as that indicated by the models like quantum neural networks. How to construct and realize an ONN with the quantum speedup is a huge challenge. Here, we propose theoretically and demonstrate experimentally a new type of optical convolutional neural network by introducing the optical correlation. It is called the correlated optical convolutional neural network (COCNN). We show that the COCNN can exhibit \"quantum speedup\" in the training process. The character is verified from the two aspects. One is the direct illustration of the faster convergence by comparing the loss function curves of the COCNN with that of the traditional convolutional neural network (CNN). Such a result is compatible with the training performance of the recently proposed quantum convolutional neural network (QCNN). The other is the demonstration of the COCNN's capability to perform the QCNN phase recognition circuit, validating the connection between the COCNN and the QCNN. Furthermore, we take the COCNN analog to the 3-qubit QCNN phase recognition circuit as an example and perform an experiment to show the soundness and the feasibility of it. The results perfectly match the theoretical calculations. Our proposal opens up a new avenue for realizing the ONNs with the quantum speedup, which will benefit the information processing in the era of big data.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"36"},"PeriodicalIF":19.4,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10828439/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139642515","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}

引用次数: 0

A new route towards polarized luminescence: 0D/2D nanocomposites. 实现极化发光的新途径：0D/2D 纳米复合材料。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-01-31 DOI: 10.1038/s41377-023-01370-5

Andries Meijerink

引用次数: 0

Observation of transition from superfluorescence to polariton condensation in CsPbBr₃ quantum dots film. 观测 CsPbBr3 量子点薄膜从超荧光到极化子凝聚的转变。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-01-30 DOI: 10.1038/s41377-024-01378-5

Danqun Mao, Linqi Chen, Zheng Sun, Min Zhang, Zhe-Yu Shi, Yongsheng Hu, Long Zhang, Jian Wu, Hongxing Dong, Wei Xie, Hongxing Xu

{"title":"Observation of transition from superfluorescence to polariton condensation in CsPbBr3 quantum dots film.","authors":"Danqun Mao, Linqi Chen, Zheng Sun, Min Zhang, Zhe-Yu Shi, Yongsheng Hu, Long Zhang, Jian Wu, Hongxing Dong, Wei Xie, Hongxing Xu","doi":"10.1038/s41377-024-01378-5","DOIUrl":"10.1038/s41377-024-01378-5","url":null,"abstract":"The superfluorescence effect has received extensive attention due to the many-body physics of quantum correlation in dipole gas and the optical applications of ultrafast bright radiation field based on the cooperative quantum state. Here, we demonstrate not only to observe the superfluorescence effect but also to control the cooperative state of the excitons ensemble by externally applying a regulatory dimension of coupling light fields. A new quasi-particle called cooperative exciton-polariton is revealed in a light-matter hybrid structure of a perovskite quantum dot thin film spin-coated on a Distributed Bragg Reflector. Above the nonlinear threshold, polaritonic condensation occurs at a nonzero momentum state on the lower polariton branch owning to the vital role of the synchronized excitons. The phase transition from superfluorescence to polariton condensation exhibits typical signatures of a decrease of the linewidth, an increase of the macroscopic coherence as well as an accelerated radiation decay rate. These findings are promising for opening new potential applications for super-brightness and unconventional coherent light sources and could enable the exploitation of cooperative effects for quantum optics.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"34"},"PeriodicalIF":19.4,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10828401/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139642516","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}

引用次数: 0

Vectorial adaptive optics: expanding the frontiers of optical correction. 矢量自适应光学：拓展光学校正的前沿。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-01-30 DOI: 10.1038/s41377-023-01358-1

Qiming Zhang, Min Gu

引用次数: 0

Radiative loss of coherence in free electrons: a long-range quantum phenomenon. 自由电子相干性的辐射损失：一种长程量子现象。

IF 19.4 1区物理与天体物理

Light, science & applications Pub Date : 2024-01-26 DOI: 10.1038/s41377-023-01361-6

Cruz I Velasco, Valerio Di Giulio, F Javier García de Abajo

{"title":"Radiative loss of coherence in free electrons: a long-range quantum phenomenon.","authors":"Cruz I Velasco, Valerio Di Giulio, F Javier García de Abajo","doi":"10.1038/s41377-023-01361-6","DOIUrl":"10.1038/s41377-023-01361-6","url":null,"abstract":"Quantum physics rules the dynamics of small objects as they interact over microscopic length scales. Nevertheless, quantum correlations involving macroscopic distances can be observed between entangled photons as well as in atomic gases and matter waves at low temperatures. The long-range nature of the electromagnetic coupling between charged particles and extended objects could also trigger quantum phenomena over large distances. Here, we reveal a manifestation of quantum mechanics that involves macroscopic distances and results in a nearly complete depletion of coherence associated with which-way free-electron interference produced by electron-radiation coupling in the presence of distant extended objects. This is a ubiquitous effect that we illustrate through a rigorous theoretical analysis of a two-path electron beam interacting with a semi-infinite metallic plate and find the inter-path coherence to vanish proportionally to the path separation at zero temperature and exponentially at finite temperature. The investigated regime of large distances originates in the coupling of the electron to radiative modes assisted by diffraction at material structures but without any involvement of material excitations. Besides the fundamental interest of this macroscopic quantum phenomenon, our results suggest an approach to measuring the vacuum temperature and nondestructively sensing the presence of distant objects.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"31"},"PeriodicalIF":19.4,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10810897/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139564335","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}

引用次数: 0