理学最新文献_第6页

Dispersive optical activity for spectro-polarimetric imaging

Light-Science & Applications Pub Date : 2025-02-20 DOI: 10.1038/s41377-025-01766-5

Zhijie Cao, Siwei Sun, Jingxuan Wei, Yong Liu

引用次数: 0

“QuanTour” illuminates Europe with single photons: celebrating the International Year of Quantum Science and Technology 2025 "量子之旅 "用单光子照亮欧洲：庆祝 2025 国际量子科技年

Light-Science & Applications Pub Date : 2025-02-17 DOI: 10.1038/s41377-025-01745-w

Fei Ding

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Compact and reciprocal probe-signal-integrated rotational Doppler velocimetry with fiber-sculpted light

Light-Science & Applications Pub Date : 2025-02-17 DOI: 10.1038/s41377-025-01747-8

Zhenyu Wan, Ziyi Tang, Xi Zhang, Miles J. Padgett, Jian Wang

{"title":"Compact and reciprocal probe-signal-integrated rotational Doppler velocimetry with fiber-sculpted light","authors":"Zhenyu Wan, Ziyi Tang, Xi Zhang, Miles J. Padgett, Jian Wang","doi":"10.1038/s41377-025-01747-8","DOIUrl":"https://doi.org/10.1038/s41377-025-01747-8","url":null,"abstract":"In recent years, with the clarification of the mechanism of the rotational Doppler effect (RDE), there has attracted extensive attention to its development of applications, especially in the detection of the angular velocity of rotating objects. On the other hand, optical fiber technology is widely applied in laser velocimetry from beam delivery to scattered light collection, aiding the miniaturization of instruments. Here we report the first all-fiber rotational Doppler velocimetry (AF-RDV) with a single probe based on a fabricated mode-sculpted fiber-optic element. The constructed AF-RDV can be operated in two reciprocal schemes wherein exchanging the illuminating mode and detected mode. Using this, we experimentally demonstrate the mode-changing dependent nature of the RDE. Particularly, the results suggest that the rotational Doppler shift can be observed by mode-filtering the scattered signal even with a non-twisted probe light. We also show the achromatic property of the RDE by scanning the incident wavelength, enabling the AF-RDV within an ultra-broadband operation range. The AF-RDV exhibits favorable performance for detecting spinning rough surfaces. It may provide an exciting new practical sensing instrument with significant prospects for monitoring angular motion in both research and industry.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143434993","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

A hybrid single quantum dot coupled cavity on a CMOS-compatible SiC photonic chip for Purcell-enhanced deterministic single-photon emission

Light-Science & Applications Pub Date : 2025-02-14 DOI: 10.1038/s41377-024-01676-y

Yifan Zhu, Runze Liu, Ailun Yi, Xudong Wang, Yuanhao Qin, Zihao Zhao, Junyi Zhao, Bowen Chen, Xiuqi Zhang, Sannian Song, Yongheng Huo, Xin Ou, Jiaxiang Zhang

{"title":"A hybrid single quantum dot coupled cavity on a CMOS-compatible SiC photonic chip for Purcell-enhanced deterministic single-photon emission","authors":"Yifan Zhu, Runze Liu, Ailun Yi, Xudong Wang, Yuanhao Qin, Zihao Zhao, Junyi Zhao, Bowen Chen, Xiuqi Zhang, Sannian Song, Yongheng Huo, Xin Ou, Jiaxiang Zhang","doi":"10.1038/s41377-024-01676-y","DOIUrl":"https://doi.org/10.1038/s41377-024-01676-y","url":null,"abstract":"The ability to control nonclassical light emission from a single quantum emitter by an integrated cavity may unleash new perspectives for integrated photonic quantum applications. However, coupling a single quantum emitter to cavity within photonic circuitry towards creation of the Purcell-enhanced single-photon emission is elusive due to the complexity of integrating active devices in low-loss photonic circuits. Here we demonstrate a hybrid micro-ring resonator (HMRR) coupled with self-assembled quantum dots (QDs) for cavity-enhanced deterministic single-photon emission. The HMRR cavity supports whispering-gallery modes with quality factors up to 7.8×103. By further introducing a micro-heater, we show that the photon emission of QDs can be locally and dynamically tuned over one free spectral ranges of the HMRR ( ~ 4 nm). This allows precise tuning of individual QDs in resonance with the cavity modes, thereby enhancing single-photon emission with a Purcell factor of about 4.9. Our results on the hybrid integrated cavities coupled with two-level quantum emitters emerge as promising devices for chip-based scalable photonic quantum applications.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417479","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

Keeping them distant for ultimate brightness

Light-Science & Applications Pub Date : 2025-02-13 DOI: 10.1038/s41377-025-01760-x

Maximilian Stremel, Markus Suta

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Colour triad in rare-earth doped glass: a step toward volumetric displays

Light-Science & Applications Pub Date : 2025-02-13 DOI: 10.1038/s41377-025-01763-8

Yiyuan Zhu, Renren Deng

引用次数: 0

Universal conservation laws of the wave-particle-entanglement triad: theory and experiment

Light-Science & Applications Pub Date : 2025-02-12 DOI: 10.1038/s41377-025-01759-4

Ziheng Ding, Yaohao Deng, Shao-Ming Fei, Si-Qi Zhou, Xiaojiong Chen, Ziwen Rui, Zhihao Ma, Yunlong Xiao, Jianwei Wang

引用次数: 0

Experimental benchmarking of quantum state overlap estimation strategies with photonic systems

Light-Science & Applications Pub Date : 2025-02-12 DOI: 10.1038/s41377-025-01755-8

Hao Zhan, Ben Wang, Minghao Mi, Jie Xie, Liang Xu, Aonan Zhang, Lijian Zhang

引用次数: 0

High-power-efficiency and ultra-long-lifetime white OLEDs empowered by robust blue multi-resonance TADF emitters

Light-Science & Applications Pub Date : 2025-02-11 DOI: 10.1038/s41377-025-01750-z

Guohao Chen, Jingsheng Miao, Xingyu Huang, Zhenghao Zhang, Zhuixing Xue, Manli Huang, Nengquan Li, Xiaosong Cao, Yang Zou, Chuluo Yang

{"title":"High-power-efficiency and ultra-long-lifetime white OLEDs empowered by robust blue multi-resonance TADF emitters","authors":"Guohao Chen, Jingsheng Miao, Xingyu Huang, Zhenghao Zhang, Zhuixing Xue, Manli Huang, Nengquan Li, Xiaosong Cao, Yang Zou, Chuluo Yang","doi":"10.1038/s41377-025-01750-z","DOIUrl":"https://doi.org/10.1038/s41377-025-01750-z","url":null,"abstract":"White organic light-emitting diodes (WOLEDs) show very promising as next-generation light-sources, but achieving high power efficiency (PE) and long operational lifetime remains challenging because of the lack of stable blue emitters that can harvest all triplet (T1) excitons for light emission. Herein, we propose integrating stable azure multi-resonance thermally activated delayed fluorescent (MR-TADF) emitters into tri-color hybrid WOLEDs to tackle these issues. By meticulously selecting MR-TADF emitters and precisely tuning the exciton recombination zone, the optimized tri-color devices based on BCzBN-3B achieve color-stable white light emission with maximum external quantum efficiency (EQEmax) and maximum PE (PEmax) of 34.4% and 101.8 lm W−1, respectively. Furthermore, the LT90, defined as the time for the luminance to drop to 90% of its initial value at 1000 cd m−2, reaches 761 h. In addition, a hybrid WOLED with deep blue emitter developed using our strategy achieves a high color rendering index of 88 and an EQEmax of 30.6%, further demonstrating the versatility and effectiveness of our approach. The record-breaking efficiency and ultra-long lifetime underscore the success of hybrid white-light devices by incorporating robust blue MR-TADF emitters. These advancements open new avenues for commercialization of hybrid WOLEDs, presenting promising solutions for energy-efficient lighting and display technologies.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385239","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

Shaping exciton polarization dynamics in 2D semiconductors by tailored ultrafast pulses

Light-Science & Applications Pub Date : 2025-02-11 DOI: 10.1038/s41377-025-01748-7

Omri Meron, Uri Arieli, Eyal Bahar, Swarup Deb, Moshe Ben Shalom, Haim Suchowski

{"title":"Shaping exciton polarization dynamics in 2D semiconductors by tailored ultrafast pulses","authors":"Omri Meron, Uri Arieli, Eyal Bahar, Swarup Deb, Moshe Ben Shalom, Haim Suchowski","doi":"10.1038/s41377-025-01748-7","DOIUrl":"https://doi.org/10.1038/s41377-025-01748-7","url":null,"abstract":"The ultrafast formation of strongly bound excitons in two-dimensional semiconductors provides a rich platform for studying fundamental physics as well as developing novel optoelectronic technologies. While extensive research has explored the excitonic coherence, many-body interactions, and nonlinear optical properties, the potential to study these phenomena by directly controlling their coherent polarization dynamics has not been fully realized. In this work, we use a sub-10 fs pulse shaper to study how temporal control of coherent exciton polarization affects the generation of four-wave mixing in monolayer ({rm{WS}}{{rm{e}}}_{2}) under ambient conditions. By tailoring multiphoton pathway interference, we tune the nonlinear response from destructive to constructive interference, resulting in a 2.6-fold enhancement over the four-wave mixing generated by a transform-limited pulse. This demonstrates a general method for nonlinear enhancement by shaping the pulse to counteract the temporal dispersion experienced during resonant light–matter interactions. Our method allows us to excite both 1s and 2s states, showcasing a selective control over the resonant state that produces nonlinearity. By comparing our results with theory, we find that exciton-exciton interactions dominate the nonlinear response, rather than Pauli blocking. This capability to manipulate exciton polarization dynamics in atomically thin crystals lays the groundwork for exploring a wide range of resonant phenomena in condensed matter systems and opens up new possibilities for precise optical control in advanced optoelectronic devices.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385238","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