理学最新文献_第8页

A large field of view 2- and 3-photon microscope

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-025-01780-7

Jack Waters

引用次数: 0

3R-WS2 crystals as a breakthrough in compact entangled photon sources

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-024-01688-8

引用次数: 0

Optical sorting: past, present and future

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-024-01734-5

Meng Yang, Yuzhi Shi, Qinghua Song, Zeyong Wei, Xiong Dun, Zhiming Wang, Zhanshan Wang, Cheng-Wei Qiu, Hui Zhang, Xinbin Cheng

{"title":"Optical sorting: past, present and future","authors":"Meng Yang, Yuzhi Shi, Qinghua Song, Zeyong Wei, Xiong Dun, Zhiming Wang, Zhanshan Wang, Cheng-Wei Qiu, Hui Zhang, Xinbin Cheng","doi":"10.1038/s41377-024-01734-5","DOIUrl":"https://doi.org/10.1038/s41377-024-01734-5","url":null,"abstract":"Optical sorting combines optical tweezers with diverse techniques, including optical spectrum, artificial intelligence (AI) and immunoassay, to endow unprecedented capabilities in particle sorting. In comparison to other methods such as microfluidics, acoustics and electrophoresis, optical sorting offers appreciable advantages in nanoscale precision, high resolution, non-invasiveness, and is becoming increasingly indispensable in fields of biophysics, chemistry, and materials science. This review aims to offer a comprehensive overview of the history, development, and perspectives of various optical sorting techniques, categorised as passive and active sorting methods. To begin, we elucidate the fundamental physics and attributes of both conventional and exotic optical forces. We then explore sorting capabilities of active optical sorting, which fuses optical tweezers with a diversity of techniques, including Raman spectroscopy and machine learning. Afterwards, we reveal the essential roles played by deterministic light fields, configured with lens systems or metasurfaces, in the passive sorting of particles based on their varying sizes and shapes, sorting resolutions and speeds. We conclude with our vision of the most promising and futuristic directions, including AI-facilitated ultrafast and bio-morphology-selective sorting. It can be envisioned that optical sorting will inevitably become a revolutionary tool in scientific research and practical biomedical applications.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143507011","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

Photon-triggered pyroptosis and ferroptosis dual-functional nanoplatform for cancer immunotherapy

Light-Science & Applications Pub Date : 2025-02-27 DOI: 10.1038/s41377-025-01757-6

Quansheng Cheng, Qingcheng Wang, Songnan Qu

引用次数: 0

Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-025-01768-3

Mubing Yu, Tingxiao Qin, Gang Gao, Kelei Zu, Dongming Zhang, Nan Chen, Dengke Wang, Yong Hua, Hong Zhang, Yong-Biao Zhao, Jiaqi Zhu

{"title":"Multiple defects renovation and phase reconstruction of reduced-dimensional perovskites via in situ chlorination for efficient deep-blue (454 nm) light-emitting diodes","authors":"Mubing Yu, Tingxiao Qin, Gang Gao, Kelei Zu, Dongming Zhang, Nan Chen, Dengke Wang, Yong Hua, Hong Zhang, Yong-Biao Zhao, Jiaqi Zhu","doi":"10.1038/s41377-025-01768-3","DOIUrl":"https://doi.org/10.1038/s41377-025-01768-3","url":null,"abstract":"Deep-blue perovskite light-emitting diodes (PeLEDs) based on reduced-dimensional perovskites (RDPs) still face a few challenges including severe trap-assisted nonradiative recombination, sluggish exciton transfer, and undesirable bathochromic shift of the electroluminescence spectra, impeding the realization of high-performance PeLEDs. Herein, an in situ chlorination (isCl) post-treatment strategy was employed to regulate phase reconstruction and renovate multiple defects of RDPs, leading to superior carrier cooling of 0.88 ps, extraordinary exciton binding energy of 122.53 meV, and higher photoluminescence quantum yield of 60.9% for RDP films with deep-blue emission at 450 nm. The phase regulation is accomplished via fluorine-derived hydrogen bonds that suppress the formation of small-n phases. Multiple defects, including halide vacancies (shallow-state defects) and lead-chloride antisite defects (deep-state defects), are renovated via C=O coordination and hydroxy-group-derived hydrogen bonds. Consequently, deep-blue PeLEDs with a record maximum external quantum efficiency of 6.17% and stable electroluminescence at 454 nm were demonstrated, representing the best-performing deep-blue PeLEDs.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495568","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

Coherence synthesis in nonlinear optics 非线性光学中的相干合成

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-025-01749-6

Zihao Pang, Ady Arie

{"title":"Coherence synthesis in nonlinear optics","authors":"Zihao Pang, Ady Arie","doi":"10.1038/s41377-025-01749-6","DOIUrl":"https://doi.org/10.1038/s41377-025-01749-6","url":null,"abstract":"It is commonly assumed that nonlinear frequency conversion requires lasers with high coherence; however, this assumption has constrained our broader understanding of coherence and overlooked the potential role of incoherence in nonlinear interactions. In this work, we study the synthesis of optical spatial coherence in second harmonic generation using quadratic nonlinear photonic crystals. We demonstrate a method where the second harmonic coherence is customized by employing quantitative phase retrieval and a complex square-root filter sequentially on fundamental frequency speckles. As a proof-of-concept, we experimentally show incoherent imaging of a smiley face transitioning from infrared to visible light. Moreover, we apply this method to produce two representative types of structured light beams in second harmonic generation: incoherent vortex and Airy beams. During the nonlinear synthesis of incoherent vortex beams, we have, for the first time, experimentally verified the conservation of orbital angular momentum in the nonlinear frequency conversion process of a low-coherence source. Furthermore, the generated second-harmonic incoherent Airy beam preserves the self-acceleration characteristics of its fundamental frequency counterpart, remaining unaffected by reductions in coherence. Our results not only deepen the fundamental understanding of optical coherence but also unlock exciting possibilities for applications in infrared imaging and fluorescence microscopy where optical nonlinear interactions play an important role.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"29 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495573","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

Next generation drug clearance insights: real-time tracking in hepatobiliary and renal systems

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-025-01782-5

Won Hur, Gi Hun Seong, Hak Soo Choi

引用次数: 0

Sky cooling for LED streetlights

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-024-01724-7

Saichao Dang, Hasan H. Almahfoudh, Abdulrahman M. Alajlan, Hussam Qasem, Jiake Wang, Yingkun Zhu, Osman M. Bakr, Boon S. Ooi, Qiaoqiang Gan

{"title":"Sky cooling for LED streetlights","authors":"Saichao Dang, Hasan H. Almahfoudh, Abdulrahman M. Alajlan, Hussam Qasem, Jiake Wang, Yingkun Zhu, Osman M. Bakr, Boon S. Ooi, Qiaoqiang Gan","doi":"10.1038/s41377-024-01724-7","DOIUrl":"https://doi.org/10.1038/s41377-024-01724-7","url":null,"abstract":"Thermal management is a critical challenge for semiconductor light-emitting diodes (LEDs), as inadequate heat dissipation reduces luminous efficiency and shortens the devices’ lifespan. Thus, there is an urgent need for more effective cooling strategies to enhance the energy efficiency of LEDs. LED streetlights, which operate primarily at night and experience high chip temperatures, could benefit greatly from improved thermal management. In this study, we introduce a sky-facing radiative cooling strategy for outdoor LED streetlights, an innovative yet less explored approach for thermal management of optoelectronics. Our method employs a nanoporous polyethylene (nanoPE) material that possesses both infrared transparency and visible reflectivity. This approach enables the direct release of heat generated by the LED through a sky-facing radiative cooling channel, while also reflecting a significant portion of the light back for illumination. By incorporating nanoPE as a cover for sky-facing LED lights, we achieved a remarkable temperature reduction of 7.8 °C in controlled laboratory settings and 4.4 °C in outdoor environments. These reductions were accompanied by an efficiency improvement of approximately 5% and 4%, respectively. This enhanced efficiency translates into substantial annual energy savings, estimated at 1.9 terawatt-hours when considering the use of LED streetlights in the United States. Furthermore, this electricity saving corresponds to a reduction of approximately 1.3 million metric tons of CO2 emissions, equivalent to 0.03% of the total annual CO2 emissions by the United States in 2018.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495570","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

Accurately adjusted phenothiazine conformations: reversible conformation transformation at room temperature and self-recoverable stimuli-responsive phosphorescence 精确调整的吩噻嗪构象：室温下的可逆构象转变和可自我恢复的刺激响应型磷光

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-024-01716-7

Yuan Gao, Wentao Yuan, Yuexin Li, Arui Huang, Yuanyuan Fang, Aisen Li, Kai Wang, Bo Zou, Qianqian Li, Zhen Li

{"title":"Accurately adjusted phenothiazine conformations: reversible conformation transformation at room temperature and self-recoverable stimuli-responsive phosphorescence","authors":"Yuan Gao, Wentao Yuan, Yuexin Li, Arui Huang, Yuanyuan Fang, Aisen Li, Kai Wang, Bo Zou, Qianqian Li, Zhen Li","doi":"10.1038/s41377-024-01716-7","DOIUrl":"https://doi.org/10.1038/s41377-024-01716-7","url":null,"abstract":"Conformational flexibility is essential to the stimuli-responsive property of organic materials, but achieving the reversible molecular transformation is still challenging in functional materials for the high energy barriers and restriction by intermolecular interactions. Herein, through the incorporation of various steric hindrances into phenothiazine derivatives with different positions and quantities to tune the molecular conformations by adjustable repulsive forces, the folded angles gradually changed from 180° to 90° in 17 compounds. When the angle located at 112° with moderated steric effect, dynamic and reversible transformation of conformations under mechanical force has been achieved for the low energy barriers and mutually regulated molecular motions, resulting in both self-recoverable and stimuli-responsive phosphorescence properties for the first time. It opened up a new way to realize the self-recovery property of organic materials, which can facilitate the multi-functional property of smart materials with the opened avenue for other fields with inspiration.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495569","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

Ultrasensitive photoelectric detection with room temperature extremum

Light-Science & Applications Pub Date : 2025-02-26 DOI: 10.1038/s41377-024-01701-0

Tuntan Wu, Yongzhen Li, Qiangguo Zhou, Qinxi Qiu, Yanqing Gao, Wei Zhou, Niangjuan Yao, Junhao Chu, Zhiming Huang

{"title":"Ultrasensitive photoelectric detection with room temperature extremum","authors":"Tuntan Wu, Yongzhen Li, Qiangguo Zhou, Qinxi Qiu, Yanqing Gao, Wei Zhou, Niangjuan Yao, Junhao Chu, Zhiming Huang","doi":"10.1038/s41377-024-01701-0","DOIUrl":"https://doi.org/10.1038/s41377-024-01701-0","url":null,"abstract":"Room-temperature photodetection holds pivotal significance in diverse applications such as sensing, imaging, telecommunications, and environmental remote sensing due to its simplicity, versatility, and indispensability. Although different kinds of photon and thermal detectors have been realized, high sensitivity of photodetection with room temperature extremum is not reported until now. Herein, we find evident peaks in the photoelectric response originated from the anomalous excitonic insulator phase transition in tantalum nickel selenide (Ta2NiSe5) for room-temperature optimized photodetection from visible light to terahertz ranges. Extreme sensitivity of photoconductive detector with specific detectivity (D*) of 5.3 × 1011 cm·Hz1/2·W−1 and electrical bandwidth of 360 kHz is reached in the terahertz range, which is one to two orders of magnitude improvement compared to that of the state-of-the-art room-temperature terahertz detectors. The van der Waals heterostructure of Ta2NiSe5/WS2 is further constructed to suppress the dark current at room temperature with much improved ambient D* of 4.1 × 1012 cm·Hz1/2·W−1 in the visible wavelength, rivaling that of the typical photodetectors, and superior photoelectric performance in the terahertz range compared to the photoconductor device. Our results open a new avenue for optoelectronics via excitonic insulator phase transition in broad wavelength bands and pave the way for applications in sensitive environmental and remote sensing at room temperature.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495571","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