物理与天体物理最新文献_第2页

All-fiber focused optical vortex array generator based on a Dammann-Kinoform spiral zone plate.

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-03-01 DOI: 10.1364/OL.550512

Yuji Wang, Luping Wu, Rui Liu, Jianjun Ran, Zilun Luo, Cailiang Lv, Shiqin Qin, Zhiyong Bai, Shen Liu, Ying Wang, George Y Chen, Changrui Liao, Yiping Wang

{"title":"All-fiber focused optical vortex array generator based on a Dammann-Kinoform spiral zone plate.","authors":"Yuji Wang, Luping Wu, Rui Liu, Jianjun Ran, Zilun Luo, Cailiang Lv, Shiqin Qin, Zhiyong Bai, Shen Liu, Ying Wang, George Y Chen, Changrui Liao, Yiping Wang","doi":"10.1364/OL.550512","DOIUrl":"https://doi.org/10.1364/OL.550512","url":null,"abstract":"<p><p>An optical vortex array (OVA) provides more degrees of freedom for modulation by controlling the number and spatial distribution of optical vortices (OVs). However, traditional approaches such as spatial light modulation need to utilize numerous complex optical components to generate an OVA and bulky objective lenses to focus it. We reported a highly integrated all-fiber generator of the focused optical vortex array (FOVA) in this work. This generator was prepared by printing a Dammann-Kinoform spiral zone plate (DKSZP) on the fiber facet using femtosecond laser two-photon polymerization (TPP) nanoprinting. The DKSZP can convert the incident Gaussian beam into 1D or 2D FOVA. The focal length, spacing of optical vortices, and topological charge of the generated FOVA were designed and verified through simulation and experimentation. Notably, we have successfully achieved the capture and rotation of silica microsphere trimers, which is attributed to the multiple robust trapping sites carrying orbital angular momentum (OAM) provided by the generated FOVA. This achievement provides a novel solution for multi-target manipulation. Our results pave the way for the integration of FOVA generation devices, demonstrating great potential in applications such as particle manipulation, optical communication, optical metrology, and microfluidic pumps.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 5","pages":"1657-1660"},"PeriodicalIF":3.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Beyond 300-Gb/s optical interconnect over 10-km SSMF at C band enabled by optical vestigial sideband signal.

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-03-01 DOI: 10.1364/OL.551697

Qibing Wang, Chao Li, Chao Yang, Hui Chen, Xumeng Liu, Xu Zhang, Xi Xiao, Lei Wang, Zhixue He, Shaohua Yu

引用次数: 0

Derivative optical imaging technique.

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-03-01 DOI: 10.1364/OL.553178

Yohan Szuszko Soares, Marcelo Jean Machado, Marcelo Prado Cionek, Lino Misoguti, Emerson Cristiano Barbano

{"title":"Derivative optical imaging technique.","authors":"Yohan Szuszko Soares, Marcelo Jean Machado, Marcelo Prado Cionek, Lino Misoguti, Emerson Cristiano Barbano","doi":"10.1364/OL.553178","DOIUrl":"https://doi.org/10.1364/OL.553178","url":null,"abstract":"<p><p>This work introduces an innovative laser-scanning optical imaging acquisition technique employing a cylindrical lens, single-element detection (photodetector), and a temporal signal derivation for image recovery. A cylindrical lens generates a line that can be focused onto a sample, facilitating rapid two-dimensional image acquisition by requiring only one-axis scanning. To obtain the one-dimensional cross sections of the sample, we encode the position information using an optical chopper, which gradually obstructs the laser beam line as the chopper's blade rotates. The sample's image information along the line is then extracted through temporal derivation of the signal collected by the photodetector. This enables the transformation of the collected signal into an intensity mapping corresponding to the unique spatial locations of each point along the geometric line of the beam. Consequently, scanning along the axis perpendicular to the laser propagation direction enables acquiring a two-dimensional sample image. The derivative optical imaging technique (DOIT) emerges as a valuable tool due to its relatively simple optical setup, fast image acquisition, compatibility with unusual wavelengths where an array camera is unavailable, potential to work with scattering samples, etc. Therefore, this work demonstrates this derivative microscope's operational principles and presents the obtained results.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 5","pages":"1504-1507"},"PeriodicalIF":3.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Development of an all-fiber spliced laser system using stimulated Brillouin scattering mitigation techniques and achieving 50 ns, 10 kW peak power for lidar applications.

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-03-01 DOI: 10.1364/OL.553536

Jonathan Pouillaude, Pierre Pichon, Xavier Delen, Philippe Roy, Baptiste Leconte, Patrick Georges, Laurent Lombard

引用次数: 0

Chern-Simons type characteristic classes of Abelian lattice gauge theory

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-03-01 DOI: 10.1016/j.physletb.2025.139363

Mengyao Wu, Jie Yang

引用次数: 0

Spin correlation in two-proton emission from 6Be

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-03-01 DOI: 10.1016/j.physletb.2025.139361

Tomohiro Oishi

引用次数: 0

Controlled generation of double-ring-shaped generalized cylindrical vector beams from a YVO4/Nd: YVO4 laser with ring-shaped defect mirror

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-03-01 DOI: 10.1016/j.optlastec.2025.112718

Zixuan Wen , Yuanxiang Wang , Jiantai Dou , Li Fan , Bo Li , Youyou Hu

{"title":"Controlled generation of double-ring-shaped generalized cylindrical vector beams from a YVO4/Nd: YVO4 laser with ring-shaped defect mirror","authors":"Zixuan Wen , Yuanxiang Wang , Jiantai Dou , Li Fan , Bo Li , Youyou Hu","doi":"10.1016/j.optlastec.2025.112718","DOIUrl":"10.1016/j.optlastec.2025.112718","url":null,"abstract":"<div><div>In this paper, a solid-state laser for the controlled generation of double-ring-shaped generalized cylindrical vector beams (GCVBs) was introduced and demonstrated. A ring-shaped defect mirror was utilized as the rear mirror to suppress the TEM<sub>00</sub> mode and obtain the TEM<sub>01</sub> mode, which was optimized by introducing the mode discriminant factor based on the vector eigenvector method. The linearly polarized TEM<sub>01</sub> mode would be transformed into the double-ring-shaped GCVBs by inserting a vortex wave plate in the resonator. Then, the experimental setup was established to achieve the controlled generation of double-ring-shaped GCVBs from the YVO<sub>4</sub>/Nd: YVO<sub>4</sub> laser, with wavelength of 1064.07 nm, laser power of 3.70 W, and slope efficiency of 18.5 %, which is the first time to achieve the direct generation of double-ring-shaped GCVBs from the solid-state laser with high thermal stability and beam quality, and may facilitate the applications of double-ring-shaped GCVBs in optical trapping, and so on.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"186 ","pages":"Article 112718"},"PeriodicalIF":4.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A coplanar metamaterial with variable channels for ventilated noise control

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-03-01 DOI: 10.1016/j.apacoust.2025.110638

Golakoti Pavan, Sneha Singh

{"title":"A coplanar metamaterial with variable channels for ventilated noise control","authors":"Golakoti Pavan, Sneha Singh","doi":"10.1016/j.apacoust.2025.110638","DOIUrl":"10.1016/j.apacoust.2025.110638","url":null,"abstract":"<div><div>Traditional noise barriers often face limitations in balancing acoustical performance and ventilation efficiency, restricting their usage in various applications. To address this, we have proposed a novel coplanar labyrinthine acoustic metamaterial with continuously varying channel widths with a micro-hole perforated cover plate for wave entry. Using an iterative backward acoustic impedance calculation by impedance translation theorem, a theoretical model for the sound absorption by the metamaterial has been developed, and validated numerically and experimentally. The sound absorption mechanism is analyzed using acoustic particle velocity fields. The key geometrical parameters (number of channels, metamaterial diameter, cover plate thickness, and micro-hole diameter) that significantly impact the sound absorption response and the method of tuning them to attain low-frequency sound attenuation below 500 Hz while maintaining a high absorption magnitude and broader bandwidth have been determined. The material is demonstrated to be a better sound absorber than Helmholtz resonator and existing coplanar metamaterials. Additionally, the impact of the metamaterial unit cell lattice on sound transmission loss, pressure drop, and ventilation efficiency is examined. The hexagonal lattice with 9.31 % ventilation provides better noise reduction than the square lattice with 21.46 % ventilation. A 17 dB difference in sound transmission loss at 510 Hz and peak sound transmission loss of 39 dB and 35 dB respectively, for hexagonal and square lattice configurations, have been experimentally verified. The proposed metamaterial has practical applications where ventilated low-frequency noise control is desired in compact spaces.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"234 ","pages":"Article 110638"},"PeriodicalIF":3.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi₂Te₃ photodetector array.

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-03-01 DOI: 10.1364/OL.553705

Qiaonan Dong, Xinxing Sun, Tingfei Yuan, Lang Gao, Yong Zheng, Rongbo Wu, Hongxin Qi, Ya Cheng

{"title":"Enhancement of responsivity and a self-powered on-chip LNOI integrated Bi<sub>2</sub>Te<sub>3</sub> photodetector array.","authors":"Qiaonan Dong, Xinxing Sun, Tingfei Yuan, Lang Gao, Yong Zheng, Rongbo Wu, Hongxin Qi, Ya Cheng","doi":"10.1364/OL.553705","DOIUrl":"https://doi.org/10.1364/OL.553705","url":null,"abstract":"<p><p>The topological insulator Bi<sub>2</sub>Te<sub>3</sub> possesses an extraordinary optoelectronic property for wide-band optoelectronics device applications. In this study, we demonstrate a high-responsivity and self-powered on-chip lithium niobate on insulator (LNOI) waveguide-integrated Bi<sub>2</sub>Te<sub>3</sub> photodetector array operating at 1550 nm. Enhancement of responsivity is attributed to the decreased Bi<sub>2</sub>Te<sub>3</sub>/Au contact resistance, which is facilitated by electrothermal annealing. The post-electrothermal annealed on-chip photodetector was demonstrated a photocurrent response increased by four orders of magnitude, reaching as high as 5.5 µA. It features a photoresponsivity of 60 mA/W and a response time of 10 µs. The uniform performance of the fabricated Bi<sub>2</sub>Te<sub>3</sub> photodetector arrays integrated with 4× multi-mode interference on the same LNOI photonic chips proves its potential for applications in high-efficiency optical communication, optical computing, and large-scale data processing.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 5","pages":"1711-1714"},"PeriodicalIF":3.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Four-dimensional imaging based on a binocular chiral metalens: publisher's note.

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-03-01 DOI: 10.1364/OL.559065

Lingyun Zhang, Jianing Yang, Li Zhang, Xiaoli Jing, Chao Liang, Chi Zhang, Chengsong Xiong, Zhongshan Zhang, Bo Ma, Fei Xing, Xiaoguang Zhao

引用次数: 0