Generating a sub-nanometer-confined optical field in a nanoslit waveguiding mode

IF 20.6 1区 物理与天体物理 Q1 OPTICS Advanced Photonics Pub Date : 2023-07-01 DOI:10.1117/1.AP.5.4.046003
Liu Yang, Zhanke Zhou, Hao-Ran Wu, Hongliang Dang, Yuxin Yang, Jiaxin Gao, Xin Guo, Pan Wang, Liming Tong
{"title":"Generating a sub-nanometer-confined optical field in a nanoslit waveguiding mode","authors":"Liu Yang, Zhanke Zhou, Hao-Ran Wu, Hongliang Dang, Yuxin Yang, Jiaxin Gao, Xin Guo, Pan Wang, Liming Tong","doi":"10.1117/1.AP.5.4.046003","DOIUrl":null,"url":null,"abstract":"Abstract. We propose to generate a sub-nanometer-confined optical field in a nanoslit waveguiding mode in a coupled nanowire pair (CNP). We show that, when a conventional waveguide mode with a proper polarization is evanescently coupled into a properly designed CNP with a central nanoslit, it can be efficiently channeled into a high-purity nanoslit mode within a waveguiding length <10  μm. The CNP can be either freestanding or on-chip by using a tapered fiber or planar waveguide for input-coupling, with a coupling efficiency up to 95%. Within the slit region, the output diffraction-limited nanoslit mode offers an extremely confined optical field (∼0.3  nm  ×  3.3  nm) with a peak-to-background ratio higher than 25 dB and can be operated within a 200-nm bandwidth. The group velocity dispersion of the nanoslit mode for ultrafast pulsed operation is also briefly investigated. Compared with the previous lasing configuration, the waveguiding scheme demonstrated here is not only simple and straightforward in structural design but is also much flexible and versatile in operation. Therefore, the waveguiding scheme we show here may offer an efficient and flexible platform for exploring light–matter interactions beyond the nanometer scale, and developing optical technologies ranging from superresolution nanoscopy and atom/molecule manipulation to ultra-sensitivity detection.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":null,"pages":null},"PeriodicalIF":20.6000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Photonics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1117/1.AP.5.4.046003","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 2

Abstract

Abstract. We propose to generate a sub-nanometer-confined optical field in a nanoslit waveguiding mode in a coupled nanowire pair (CNP). We show that, when a conventional waveguide mode with a proper polarization is evanescently coupled into a properly designed CNP with a central nanoslit, it can be efficiently channeled into a high-purity nanoslit mode within a waveguiding length <10  μm. The CNP can be either freestanding or on-chip by using a tapered fiber or planar waveguide for input-coupling, with a coupling efficiency up to 95%. Within the slit region, the output diffraction-limited nanoslit mode offers an extremely confined optical field (∼0.3  nm  ×  3.3  nm) with a peak-to-background ratio higher than 25 dB and can be operated within a 200-nm bandwidth. The group velocity dispersion of the nanoslit mode for ultrafast pulsed operation is also briefly investigated. Compared with the previous lasing configuration, the waveguiding scheme demonstrated here is not only simple and straightforward in structural design but is also much flexible and versatile in operation. Therefore, the waveguiding scheme we show here may offer an efficient and flexible platform for exploring light–matter interactions beyond the nanometer scale, and developing optical technologies ranging from superresolution nanoscopy and atom/molecule manipulation to ultra-sensitivity detection.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
在纳米狭缝波导模式下产生亚纳米受限光场
摘要我们提出在耦合纳米线对(CNP)中以纳米狭缝波导模式产生亚纳米受限光场。我们发现,当具有适当偏振的传统波导模式瞬时耦合到具有适当设计的中心纳米狭缝的CNP中时,它可以在波导长度<10 μm的范围内有效地引导成高纯度的纳米狭缝模式。CNP可以是独立的,也可以是片上的,通过使用锥形光纤或平面波导进行输入耦合,耦合效率高达95%。在狭缝区域内,输出衍射受限的纳米狭缝模式提供了一个非常受限的光场(~ 0.3 nm × 3.3 nm),其峰背景比高于25 dB,并且可以在200 nm的带宽内工作。本文还对超快脉冲操作中纳米狭缝模式的群速度色散进行了简要的研究。与以往的激光配置相比,本文所展示的波导方案不仅在结构设计上简单明了,而且在操作上也更加灵活和通用。因此,我们在这里展示的波导方案可能为探索纳米尺度以外的光-物质相互作用提供一个高效和灵活的平台,并开发从超分辨率纳米显微镜和原子/分子操作到超灵敏度检测的光学技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
22.70
自引率
1.20%
发文量
49
审稿时长
18 weeks
期刊介绍: Advanced Photonics is a highly selective, open-access, international journal that publishes innovative research in all areas of optics and photonics, including fundamental and applied research. The journal publishes top-quality original papers, letters, and review articles, reflecting significant advances and breakthroughs in theoretical and experimental research and novel applications with considerable potential. The journal seeks high-quality, high-impact articles across the entire spectrum of optics, photonics, and related fields with specific emphasis on the following acceptance criteria: -New concepts in terms of fundamental research with great impact and significance -State-of-the-art technologies in terms of novel methods for important applications -Reviews of recent major advances and discoveries and state-of-the-art benchmarking. The journal also publishes news and commentaries highlighting scientific and technological discoveries, breakthroughs, and achievements in optics, photonics, and related fields.
期刊最新文献
Large-scale distributed diffractive-interference hybrid photonic chiplets Coherence entropy during propagation through complex media Authentication through residual attention-based processing of tampered optical responses Controlling the hidden parity in vectorial light with metasurfaces Observing the collapse of super-Bloch oscillations in strong-driving photonic temporal lattices
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1