APL Photonics最新文献_第6页

Ultra-high precision comb-locked terahertz frequency-domain spectroscopy of whispering-gallery modes 超高精度梳状锁定太赫兹频域光谱学 "耳语画廊 "模式

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-15 DOI: 10.1063/5.0217898

Sebastian Müller, Kane Hill, Dominik Walter Vogt, Thomas A. Puppe, Yuriy Mayzlin, Rafal Wilk

引用次数: 0

Analysis of norepinephrine-regulated cerebral lymphatic drainage by the second near-infrared region in vivo imaging 通过第二近红外区域活体成像分析去甲肾上腺素调控的脑淋巴引流

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-12 DOI: 10.1063/5.0205571

Xi Li, Tianhao Yang, Zhongyang Zhang, Shengnan Wu, Zhen Yuan, Feifan Zhou

{"title":"Analysis of norepinephrine-regulated cerebral lymphatic drainage by the second near-infrared region in vivo imaging","authors":"Xi Li, Tianhao Yang, Zhongyang Zhang, Shengnan Wu, Zhen Yuan, Feifan Zhou","doi":"10.1063/5.0205571","DOIUrl":"https://doi.org/10.1063/5.0205571","url":null,"abstract":"The cerebral lymphatic drainage plays an important role in the occurrence and development of central nervous system diseases. Recent studies have shown that cerebral lymphatic drainage is regulated by circadian rhythm and anesthesia state; however, the regulating mechanism is still unclear. In this study, we used the second near-infrared region in vivo imaging to explore the regulation of cerebral lymphatic drainage in mice at different states. At first, by injection of a tracer at different times, we confirmed that the drainage of the meningeal lymphatic system was the fastest at zeitgeber time 2, while the internal flow of the glymphatic system was the slowest. Under anesthesia with isoflurane, administration of dexmedetomidine, an anesthetic that inhibits norepinephrine (NE) release, enabled mice to enter the stage of non-rapid eye movement sleep, at which time the influx of the glymphatic system increased, the efflux of the meningeal lymphatic system decreased, and the clearance rate of the brain parenchyma decreased. However, following the exogenous NE supplement, mice quickly changed from a non-rapid eye movement stage into an awake state with the meningeal lymphatic drainage retrieval. The results showed whether the drainage of the glymphatic system and meningeal lymphatic vessels, or parenchymal clearance, has made rapid adjustments based on sleep status that is regulated by NE. This study reveals that the NE-regulated sleep–wake cycle is a powerful regulator of cerebral lymphatic drainage and provides a potential therapeutic target for related central nervous system diseases.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"28 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141611022","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}

引用次数: 0

Femtosecond laser-induced dewetting of sub-10-nm nanostructures on silicon in ambient air 环境空气中飞秒激光诱导的硅上 10 纳米以下结构的脱水现象

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-10 DOI: 10.1063/5.0205219

Hao Luo, Xiaoduo Wang, Yangdong Wen, Ye Qiu, Lianqing Liu, Haibo Yu

{"title":"Femtosecond laser-induced dewetting of sub-10-nm nanostructures on silicon in ambient air","authors":"Hao Luo, Xiaoduo Wang, Yangdong Wen, Ye Qiu, Lianqing Liu, Haibo Yu","doi":"10.1063/5.0205219","DOIUrl":"https://doi.org/10.1063/5.0205219","url":null,"abstract":"To realize nanoscale manufacturing based on laser direct writing technology, objective lenses with high numerical apertures immersed in water or oil are necessary. The use of liquid medium restricts its application in semiconductors. Achieving nanoscale features on silicon by laser direct writing in a low refractive index medium has been a challenge. In this work, a microsphere assisted femtosecond laser far-field induced dewetting approach is proposed. A reduction in the full-width at half-maximum of the focused light spot is realized by modulating tightly focused light through microspheres and achieving a minimum feature size of 9 nm on silicon in ambient air with energy smaller than the ablation threshold. Theoretical analysis and numerical simulation of laser processing are performed based on a two-temperature model. Furthermore, we explored the potential of femtosecond laser-induced dewetting in nanolithography and demonstrated its ability to achieve an arbitrary structure on silicon. Our work enables laser-based far-field sub-10-nm feature etching on a large-scale, providing a novel avenue for nanoscale silicon manufacturing.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"46 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586283","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}

引用次数: 0

Hot electron effect in high-order harmonic generation from graphene driven by elliptically polarized light 椭圆偏振光驱动石墨烯产生高阶谐波时的热电子效应

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-03 DOI: 10.1063/5.0212022

Kotaro Nakagawa, Wenwen Mao, Shunsuke A. Sato, Hiroki Ago, Angel Rubio, Yoshihiko Kanemitsu, Hideki Hirori

{"title":"Hot electron effect in high-order harmonic generation from graphene driven by elliptically polarized light","authors":"Kotaro Nakagawa, Wenwen Mao, Shunsuke A. Sato, Hiroki Ago, Angel Rubio, Yoshihiko Kanemitsu, Hideki Hirori","doi":"10.1063/5.0212022","DOIUrl":"https://doi.org/10.1063/5.0212022","url":null,"abstract":"We studied high-order harmonic generation (HHG) in graphene driven by either linearly or elliptically polarized mid-infrared (MIR) light, and we additionally applied terahertz (THz) pulses to modulate the electron distribution in graphene. The high-harmonic spectrum obtained using linearly polarized MIR light contains only odd-order harmonics. We found that the intensities of the fifth- and seventh-order harmonics are reduced by the modulation with the THz pulses. In addition, we found that the THz-induced reduction of the seventh-order harmonic driven by elliptically polarized MIR light (at ellipticity ε = 0.3) is larger than that of seventh-order harmonic driven by linearly polarized MIR light (ε = 0). The observed behavior can be reproduced by theoretical calculations that consider different electron temperatures (caused by the THz pulses). Furthermore, the observed stronger suppression of HHG driven by elliptically polarized light reveals the following: in the case of elliptically polarized light, the generation of harmonics via interband transitions to conduction-band states that are closer to the Dirac point is more important than in the case of linearly polarized light. In other words, the quantum pathways via interband transitions to low-energy states are the origin of the enhancement of HHG that can be achieved in graphene by using elliptically polarized light.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"11 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141548276","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}

引用次数: 0

Broadband color routing with a single element nanoantenna for communication bands 利用单元素纳米天线为通信波段提供宽带彩色路由功能

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-02 DOI: 10.1063/5.0206274

Xianghua Liu, Ang Li, Chenyang Liu, Nengyang Zhao, Jiahao Peng, Fengyuan Gan, Xinrui Lei, Ruxue Wang, Aimin Wu

引用次数: 0

High-Q magnetic toroidal dipole resonance in all-dielectric metasurfaces 全介质元表面中的高 Q 磁环偶极共振

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-02 DOI: 10.1063/5.0208936

Ying Zhang, Lulu Wang, Haoxuan He, Hong Duan, Jing Huang, Chenggui Gao, Shaojun You, Lujun Huang, Andrey E. Miroshnichenko, Chaobiao Zhou

{"title":"High-Q magnetic toroidal dipole resonance in all-dielectric metasurfaces","authors":"Ying Zhang, Lulu Wang, Haoxuan He, Hong Duan, Jing Huang, Chenggui Gao, Shaojun You, Lujun Huang, Andrey E. Miroshnichenko, Chaobiao Zhou","doi":"10.1063/5.0208936","DOIUrl":"https://doi.org/10.1063/5.0208936","url":null,"abstract":"High quality (Q) factor toroidal dipole (TD) resonances have played an increasingly important role in enhancing light–matter interactions. Interestingly, TDs share a similar far-field distribution as the conventional electric/magnetic dipoles but have distinct near-field profiles from them. While most reported works focused on the electric TD, magnetic TDs (MTDs), particularly high-Q MTD, have not been fully explored yet. Here, we successfully realized a high-Q MTD by effectively harnessing the ultrahigh Q-factor guided mode resonances supported in an all-dielectric metasurface, that is, changing the interspacing between silicon nanobar dimers. Other salient properties include the stable resonance wavelength but a precisely tailored Q-factor by interspacing distance. A multipole decomposition analysis indicates that this mode is dominated by the MTD, where the electric fields are mainly confined within the dielectric nanostructures, while the induced magnetic dipole loops are connected head-to-tail. Finally, we experimentally demonstrated such high-Q MTD resonance by fabricating a series of silicon metasurfaces and measuring their transmission spectra. The MTD resonance is characterized by a sharp Fano resonance in the transmission spectrum. The maximum measured Q-factor is up to 5079. Our results provide useful guidance for realizing high-Q MTD and may find exciting applications in boosting light–matter interactions.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"44 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141517025","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}

引用次数: 0

2 W monolithic fiber laser at 3.8 µm 2 W 单片光纤激光器，波长 3.8 µm

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-01 DOI: 10.1063/5.0212455

M. Lemieux-Tanguay, T. Boilard, P. Paradis, R. Vallée, M. Bernier

引用次数: 0

Optically controllable deformation and phase change in VO2/Si3N4/Au hybrid nanostructures with polarization selectivity 具有偏振选择性的 VO2/Si3N4/Au 混合纳米结构中的光可控形变和相变

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-01 DOI: 10.1063/5.0213410

Xiaochen Zhang, Yuan Li, Weikang Dong, Qinghua Liang, Haozhe Sun, Yang Wang, Xiaowei Li, Lan Jiang, Xinping Zhang, He Ma, Jiafang Li

引用次数: 0

Solar-blind photonic integrated chips for real-time on-chip communication 用于实时片上通信的太阳盲光子集成芯片

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-01 DOI: 10.1063/5.0206657

Rui He, Yijian Song, Naixin Liu, Renfeng Chen, Jin Wu, Yufeng Wang, Qiang Hu, Xiongbin Chen, Junxi Wang, Jinmin Li, Tongbo Wei

{"title":"Solar-blind photonic integrated chips for real-time on-chip communication","authors":"Rui He, Yijian Song, Naixin Liu, Renfeng Chen, Jin Wu, Yufeng Wang, Qiang Hu, Xiongbin Chen, Junxi Wang, Jinmin Li, Tongbo Wei","doi":"10.1063/5.0206657","DOIUrl":"https://doi.org/10.1063/5.0206657","url":null,"abstract":"The monolithically integrated self-driven photoelectric detector (PD) with the light-emitting diode (LED) epitaxial structure completely relies on the built-in electric field in the multi-quantum wells region to separate the photogenerated carriers. Here, we propose a novel superlattices–electron barrier layer structure to expand the potential field region and enhance the detection capability of the integrated PD. The PD exhibits a record-breaking photo-to-dark current ratio of 5.14 × 107, responsivity of 110.3 A/W, and specific detectivity of 2.2 × 1013 Jones at 0 V bias, respectively. A clear open-eyed diagram of the monolithically integrated chip, including the PD, LED, and waveguide, is realized under a high-speed communication rate of 150 Mbps. The obtained transient response (rise/decay) time of 2.16/2.28 ns also illustrates the outstanding transient response capability of the integrated chip. The on-chip optical communication system is built to achieve the practical video signals transmission application, which is a formidable contender for the core module of future large-scale photonic integrated circuits.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"129 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141517028","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}

引用次数: 0

Breaking the barriers of electron-driven x-ray radiation in crystals 打破晶体中电子驱动 X 射线辐射的障碍

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-07-01 DOI: 10.1063/5.0206819

Amnon Balanov, Alexey Gorlach, Ido Kaminer

引用次数: 0