Light-Science & Applications最新文献_第2页

Miniaturized disordered photonic molecule spectrometer

Light-Science & Applications Pub Date : 2025-03-31 DOI: 10.1038/s41377-024-01705-w

Yujia Zhang, Tom Albrow-Owen, Zhenyu Zhao, Yinpeng Chen, Yaotian Zhao, Hannah Joyce, Tawfique Hasan, Zongyin Yang, Yikai Su, Xuhan Guo

{"title":"Miniaturized disordered photonic molecule spectrometer","authors":"Yujia Zhang, Tom Albrow-Owen, Zhenyu Zhao, Yinpeng Chen, Yaotian Zhao, Hannah Joyce, Tawfique Hasan, Zongyin Yang, Yikai Su, Xuhan Guo","doi":"10.1038/s41377-024-01705-w","DOIUrl":"https://doi.org/10.1038/s41377-024-01705-w","url":null,"abstract":"The burgeoning field of computational spectrometers is rapidly advancing, providing a pathway to highly miniaturized, on-chip systems for in-situ or portable measurements. The performance of these systems is typically limited in its encoder section. The response matrix is largely compromised with redundancies, due to the periodic intensity or overly smooth responses. As such, the inherent interdependence among the physical size, resolution, and bandwidth of spectral encoders poses a challenge to further miniaturization progress. Achieving high spectral resolution necessitates a long optical path length, leading to a larger footprint required for sufficient spectral decorrelation, resulting in a limited detectable free-spectral range (FSR). Here, we report a groundbreaking ultra-miniaturized disordered photonic molecule spectrometer that surpasses the resolution-bandwidth-footprint metric of current spectrometers. This computational spectrometer utilizes complicated electromagnetic coupling to determinately generate quasi-random spectral response matrices, a feature absents in other state-of-the-art systems, fundamentally overcoming limitations present in the current technologies. This configuration yields an effectively infinite FSR while upholding a high Q-factor ( > 7.74 × 105). Through dynamic manipulation of photon frequency, amplitude, and phase, a broad operational bandwidth exceeding 100 nm can be attained with an ultra-high spectral resolution of 8 pm, all encapsulated within an ultra-compact footprint measuring 70 × 50 μm². The disordered photonic molecule spectrometer is constructed on a CMOS-compatible integrated photonics platform, presenting a pioneering approach for high-performance and highly manufacturable miniaturized spectroscopy.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Universal conservation law governing the wave–particle duality and quantum entanglement

Light-Science & Applications Pub Date : 2025-03-27 DOI: 10.1038/s41377-025-01804-2

Kai Sun, Jin-Shi Xu, Chuan-Feng Li

引用次数: 0

High-performance analog signal processing with photonic integrated circuits

Light-Science & Applications Pub Date : 2025-03-27 DOI: 10.1038/s41377-025-01806-0

Francesco Morichetti

引用次数: 0

2nd-Order Debye relaxation in electromagnetic metasurfaces for wideband dispersion engineering

Light-Science & Applications Pub Date : 2025-03-27 DOI: 10.1038/s41377-025-01813-1

Xinmin Fu, Yajuan Han, Jiafu Wang, Jie Yang, Yong Sun, Chang Ding, Yuxiang Jia, Jun Wang, Shaobo Qu, Tiejun Cui

{"title":"2nd-Order Debye relaxation in electromagnetic metasurfaces for wideband dispersion engineering","authors":"Xinmin Fu, Yajuan Han, Jiafu Wang, Jie Yang, Yong Sun, Chang Ding, Yuxiang Jia, Jun Wang, Shaobo Qu, Tiejun Cui","doi":"10.1038/s41377-025-01813-1","DOIUrl":"https://doi.org/10.1038/s41377-025-01813-1","url":null,"abstract":"In dielectric physics, electromagnetic (EM) properties of dielectrics arise from several important polarization mechanisms that can be described by Debye, Drude or Lorentz models. Metamaterials, as well as their 2D counterparts-metasurfaces, can exhibit bizarre EM parameters such as negative permittivity, whereas polarization mechanisms leading to such have long been discussed in dielectric physics. Drude and Lorentz's models are usually used in metamaterial design, whereas the Debye model is almost absent, though it is so important in dielectric physics. This leaves an unreconciled gap between the dielectric physics and metamaterials. In this paper, we explore Debye relaxations in metasurfaces for the sake of wideband dispersion engineering. By analyzing two fundamental resonance modes of a typical meta-atom, we first show that the reflection phase experiences 1st-order Debye relaxation under the two resonances, although they are typically Lorentzian. More importantly, the two resonances can be tailored to form a 2nd-order Debye relaxation process so as to achieve smooth phase variations in between them, which lays a solid foundation for wideband dispersion engineering. As proof of concept, we propose a quad-elliptical-arc (QEA) structure as the meta-atom, whose dispersion can be customized by tailoring the 2nd-order Debye relaxation. With this meta-atom, we demonstrated two metasurface prototypes that can achieve chromatic and achromatic focusing, respectively, in the entire X band (8.0–12.0 GHz), showcasing the powerful capacity of wideband dispersion engineering. This work digs out relaxation processes in metamaterials and opens up new territories for metamaterial research, which may find wide applications in wideband devices and systems.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143712877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinearity of optoacoustic signals and a new contrast mechanism for imaging

Light-Science & Applications Pub Date : 2025-03-27 DOI: 10.1038/s41377-025-01772-7

Jaber Malekzadeh-Najafabadi, Jaya Prakash, Daniel Razansky, Jorge Ripoll, Vipul Gujrati, Vasilis Ntziachristos

{"title":"Nonlinearity of optoacoustic signals and a new contrast mechanism for imaging","authors":"Jaber Malekzadeh-Najafabadi, Jaya Prakash, Daniel Razansky, Jorge Ripoll, Vipul Gujrati, Vasilis Ntziachristos","doi":"10.1038/s41377-025-01772-7","DOIUrl":"https://doi.org/10.1038/s41377-025-01772-7","url":null,"abstract":"Optoacoustic signals behave nonlinearly at light fluences above a few mJ/cm2, which may affect the interpretation and quantification of measurements. It has been proposed that optoacoustic nonlinearity arises from the heat-induced formation of nanobubbles or changes in local thermo-physical parameters. However, such explanations are only valid at much higher fluences than typically used in biomedical optoacoustic imaging (> 20 mJ/cm2) or in the presence of materials with high absorption coefficients such as gold nanoparticles. We propose herein that electromagnetic permittivity changes in response to photon absorption are major source of optoacoustic signal nonlinearity at low fluences. We provide theoretical and experimental evidence that supports this postulation and show that optoacoustic pressure responses due to permittivity changes, which are function of thermally excited third-order nonlinear susceptibility, can explain the nonlinear behavior of the optoacoustic signal. Since different materials exhibit different thermally excited third-order nonlinear susceptibility, this property could function as a new contrast mechanism that can identify the sensitivity of a substance’s dielectric constant to photon-induced temperature changes. Consequently, we propose an imaging method based on nonlinear optoacoustic signals that exploits this newly identified contrast mechanism. These findings may have far-reaching implications for improving the accuracy of optoacoustics and utilizing the proposed new contrast mechanism would advance our understanding of cellular and tissue functionality.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143712882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accelerating fringe projection profilometry to 100k fps at high-resolution using deep learning

Light-Science & Applications Pub Date : 2025-03-27 DOI: 10.1038/s41377-025-01802-4

Jie Xu, Jindong Tian

引用次数: 0

Programmable optical encryption using thickness-controlled stretchable chiral liquid crystal elastomers

Light-Science & Applications Pub Date : 2025-03-26 DOI: 10.1038/s41377-025-01815-z

Seungmin Nam, Seohyun Woo, Ji Yoon Park, Su Seok Choi

{"title":"Programmable optical encryption using thickness-controlled stretchable chiral liquid crystal elastomers","authors":"Seungmin Nam, Seohyun Woo, Ji Yoon Park, Su Seok Choi","doi":"10.1038/s41377-025-01815-z","DOIUrl":"https://doi.org/10.1038/s41377-025-01815-z","url":null,"abstract":"The growing demand for cryptographic security encourages the innovation of advanced materials with unique optical properties to secure information using light. Structural colors with soft materials exhibit dynamically tunable optical properties in response to external stimuli, making them ideal for multi-level photonic encryption. However, most previous studies on structural color-based photonic encryption have predominantly focused on single-wavelength tuning while employing inadequate triggering methods for practical device applications. Here, we propose a chiral liquid crystal elastomer (CLCE) designed for stretching-induced multi-wavelength control to enhance photonic encryption functionality. By employing a heterogeneous configuration with thickness-modulated CLCE, we achieve multi-photonic band wavelength control under mechanical deformation. Furthermore, this method extends the tunable wavelength range beyond the visible spectrum into the infrared region and integrates a discrete multi-pixel array structure, enabling advanced spatial and spectral control for complex encryption schemes. This multi-wavelength modulation method is expected to provide significant potential for applications in photonic encryption, adaptive optics, and next-generation information security systems.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Noise-tolerant LiDAR approaching the standard quantum-limited precision

Light-Science & Applications Pub Date : 2025-03-26 DOI: 10.1038/s41377-025-01790-5

Haochen Li, Kaimin Zheng, Rui Ge, Labao Zhang, Lijian Zhang, Weiji He, Biao Zhang, Miao Wu, Ben Wang, Minghao Mi, Yanqiu Guan, Jingrou Tan, Hao Wang, Qi Chen, Xuecou Tu, Qingyuan Zhao, Xiaoqing Jia, Jian Chen, Lin Kang, Qian Chen, Peiheng Wu

{"title":"Noise-tolerant LiDAR approaching the standard quantum-limited precision","authors":"Haochen Li, Kaimin Zheng, Rui Ge, Labao Zhang, Lijian Zhang, Weiji He, Biao Zhang, Miao Wu, Ben Wang, Minghao Mi, Yanqiu Guan, Jingrou Tan, Hao Wang, Qi Chen, Xuecou Tu, Qingyuan Zhao, Xiaoqing Jia, Jian Chen, Lin Kang, Qian Chen, Peiheng Wu","doi":"10.1038/s41377-025-01790-5","DOIUrl":"https://doi.org/10.1038/s41377-025-01790-5","url":null,"abstract":"Quantum-inspired imaging techniques have been proven to be effective for LiDAR with the advances of single photon detectors and computational algorithms. However, due to the disturbance of background noise and the varies of signal in outdoor environment, the performance of LiDAR is still far from its ultimate limit set by the quantum fluctuations of coherent probe light. In this work, we propose and demonstrate a LiDAR from the detection perspective for approaching the standard quantum-limited performance. The photon numbers of echo signals are recorded by a photon-number-resolving detector and applied to overcome heavy background noise through an active photon number filter in the LiDAR. It can approach the standard quantum limit in intensity estimation in a wide photon-flux range, and achieve a Fisher information of only 0.04 dB less than the quantum Fisher information when the mean signal photon number is 10. Experimentally, a noise-free target reconstruction and imaging is demonstrated in the daytime by the proposed LiDAR. It also performs better in reflectivity resolution when taking only 1/1000 of the measurements based on on/off detection. This work provides a fundamental strategy for constructing a LiDAR to quickly extract targets and identify materials in complex environments, which is important for intelligent agents such as autonomous vehicles.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Space-to-ground infrared camouflage with radiative heat dissipation

Light-Science & Applications Pub Date : 2025-03-26 DOI: 10.1038/s41377-025-01824-y

Bing Qin, Huanzheng Zhu, Rongxuan Zhu, Meng Zhao, Min Qiu, Qiang Li

{"title":"Space-to-ground infrared camouflage with radiative heat dissipation","authors":"Bing Qin, Huanzheng Zhu, Rongxuan Zhu, Meng Zhao, Min Qiu, Qiang Li","doi":"10.1038/s41377-025-01824-y","DOIUrl":"https://doi.org/10.1038/s41377-025-01824-y","url":null,"abstract":"With the development of space exploration and exploitation, it is imperative to address the potential threats posed to space objects, particularly ground-based infrared observation. However, in the extreme space environment, achieving infrared camouflage across different bands with simultaneous thermal management is challenging and has so far slipped out of concern. Here, we propose the space-to-ground infrared camouflage strategy, compatible with radiative heat dissipation. Camouflage in the H, K, mid-wave-infrared (MWIR), and long-wave-infrared (LWIR) bands is achieved through a multilayer structure, with radiative heat dissipation in the very-long-wave-infrared (VLWIR) band. High absorptivity (0.839/0.633) in the H/K bands minimizes the reflected signal of solar radiation and low emissivity (0.132/0.142) in the MWIR/LWIR bands suppresses the thermal radiation signal. Additionally, high emissivity (0.798) in the VLWIR band ensures efficient thermal management, resulting in a temperature decrement of 39.8 °C to the metal reference in the simulated space environment (with 1200 W m−2 thermal input). This work inspires sophisticated spectral manipulation in extreme environments and guides the development of camouflage and radiative heat dissipation techniques for space objects.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"183 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Entanglement-controlled vectorial meta-holography

Light-Science & Applications Pub Date : 2025-03-25 DOI: 10.1038/s41377-025-01818-w

Sheng Ye, Yue Han, Li-Zheng Liu, Weiping Wan, Ruiqi Wang, Mingna Xun, Qiang Li, Qihuang Gong, Jianwei Wang, Yan Li

{"title":"Entanglement-controlled vectorial meta-holography","authors":"Sheng Ye, Yue Han, Li-Zheng Liu, Weiping Wan, Ruiqi Wang, Mingna Xun, Qiang Li, Qihuang Gong, Jianwei Wang, Yan Li","doi":"10.1038/s41377-025-01818-w","DOIUrl":"https://doi.org/10.1038/s41377-025-01818-w","url":null,"abstract":"Metasurfaces can precisely manipulate the amplitude, phase, and polarization of incident light through subwavelength structures, greatly advancing the quantum meta-holographic imaging. However, the current methods of using quantum holography only control either the amplitude or the phase on the imaging plane, so the resulted scalar holography without the polarization distribution has limited imaging channels. Here, the vectorial meta-holography using entangled signal-idler photon pairs is experimentally demonstrated to realize remotely controlled multi-channel quantum imaging. By simultaneous control of the amplitude ratio between two cross-polarization holographic images and their phase difference on the image plane, the polarization distribution accordingly changes with the incident polarization state. The accurate correspondence ensures the correct reconstruction of 32 incident polarization states with an average fidelity up to 94.78%. This enables entangled idler photons to remotely control the holographic images reconstructed by the entangled signal photons, where the signal-to-noise ratio is as high as 10.78 dB, even for maximally mixed quantum states. This vectorial meta-holography using entangled states has a larger polarization state information capacity and will facilitate miniaturized quantum imaging and efficient quantum state tomography.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0