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Absorption of ultrashort laser pulses in medium with account for propagation effects 超短激光脉冲在介质中的吸收并考虑传播效应
Journal of Optics Pub Date : 2024-07-11 DOI: 10.1088/2040-8986/ad61fb
V. Astapenko
{"title":"Absorption of ultrashort laser pulses in medium with account for propagation effects","authors":"V. Astapenko","doi":"10.1088/2040-8986/ad61fb","DOIUrl":"https://doi.org/10.1088/2040-8986/ad61fb","url":null,"abstract":"\u0000 The absorption of short laser pulses in an optically dense medium is theoretically studied based on the total absorption coefficient over the entire duration of the pulse, taking into account the effects of propagation and reflection of pulse from vacuum/medium interface. The approach is the generalization of our previous work [1], which traced a “bridge” between the micro- and macro-description of radiation processes in a medium induced by electromagnetic pulses of arbitrary duration. The expression for the total absorption coefficient is obtained in terms the complex refractive index of the medium. Various limits of this expression are considered. Numerical calculations of the dependence of the total absorption coefficient on the parameters of the laser pulses and the thickness of the medium layer were carried out and the results obtained were discussed.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141657715","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
Efficient THz generation through laser and plasma parameter optimization with Sinh-Gaussian beams in magnetized plasma 在磁化等离子体中使用正高斯光束，通过激光和等离子体参数优化实现高效太赫兹生成
Journal of Optics Pub Date : 2024-07-11 DOI: 10.1007/s12596-024-02031-5
Jasveer Singh, Sunita Rani, Hitesh Kumar Midha, Vivekanand Sharma, V. Thakur
{"title":"Efficient THz generation through laser and plasma parameter optimization with Sinh-Gaussian beams in magnetized plasma","authors":"Jasveer Singh, Sunita Rani, Hitesh Kumar Midha, Vivekanand Sharma, V. Thakur","doi":"10.1007/s12596-024-02031-5","DOIUrl":"https://doi.org/10.1007/s12596-024-02031-5","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141656885","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
Radial diversification of pump and signal intensities in EDFA comprising LP01 mode dispersion compensation fibers in third order nonlinear condition 三阶非线性条件下包含 LP01 模式色散补偿光纤的 EDFA 中泵浦和信号强度的径向多样化
Journal of Optics Pub Date : 2024-07-10 DOI: 10.1007/s12596-024-01972-1
Bappa Ditya Biswas, Ramkrishna Rakshit, Angshuman Majumdar
{"title":"Radial diversification of pump and signal intensities in EDFA comprising LP01 mode dispersion compensation fibers in third order nonlinear condition","authors":"Bappa Ditya Biswas, Ramkrishna Rakshit, Angshuman Majumdar","doi":"10.1007/s12596-024-01972-1","DOIUrl":"https://doi.org/10.1007/s12596-024-01972-1","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141660786","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
Tunable and strong circular dichroism mediated with graphene-Weyl semimetal planar scheme 石墨烯-Weyl 半金属平面方案介导的可调谐强圆二色性
Journal of Optics Pub Date : 2024-07-10 DOI: 10.1088/2040-8986/ad6169
Sicheng Xu, Siyao Yu, Liming Qian, Gaige Zheng
{"title":"Tunable and strong circular dichroism mediated with graphene-Weyl semimetal planar scheme","authors":"Sicheng Xu, Siyao Yu, Liming Qian, Gaige Zheng","doi":"10.1088/2040-8986/ad6169","DOIUrl":"https://doi.org/10.1088/2040-8986/ad6169","url":null,"abstract":"\u0000 Strong circular dichroism (CD) has been observed in Weyl semimetals (WSMs) because of the extremely large gyrotropic optical response. However, traditional proposals cannot tune the wavelength of CD peaks continuously without changing the geometric parameters or external magnetic field, which limits the practical application. This study presents a lithography-free platform exhibits near-unity CD in a WSM-graphene-dielectric structure. It is theoretically shown that the proposal possesses different reflectance properties for right-hand circular polarization (RCP) and left-hand circular polarization (LCP) light in the mid-infrared (mid-IR) range. The merits of the wide-angular chiral capacity of CP waves can also be maintained. The CD of the chiral structure can be tuned not only by adjusting the structural parameters, but also the chemical potential of graphene, which may also facilitate the design of more efficient chiral optical devices.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141660059","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
CoViD-19 disinfectant tester by using a defect layered 1D quaternary photonic band gap structure 使用缺陷层状一维四重光子带隙结构的 CoViD-19 消毒剂测试仪
Journal of Optics Pub Date : 2024-07-10 DOI: 10.1007/s12596-024-01980-1
Anirudh Banerjee
{"title":"CoViD-19 disinfectant tester by using a defect layered 1D quaternary photonic band gap structure","authors":"Anirudh Banerjee","doi":"10.1007/s12596-024-01980-1","DOIUrl":"https://doi.org/10.1007/s12596-024-01980-1","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141662158","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
Spectroscopic analysis of iron plasma produced by influence of argon gas flow rate on plasma parameter 氩气流速对等离子参数影响下产生的铁等离子体的光谱分析
Journal of Optics Pub Date : 2024-07-10 DOI: 10.1007/s12596-024-01995-8
Maryam A. Hussein, Kadhim A. Aadim
{"title":"Spectroscopic analysis of iron plasma produced by influence of argon gas flow rate on plasma parameter","authors":"Maryam A. Hussein, Kadhim A. Aadim","doi":"10.1007/s12596-024-01995-8","DOIUrl":"https://doi.org/10.1007/s12596-024-01995-8","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141662540","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
Excitation of electron plasma wave by optically guided $${varvec{q}}$$-gaussian laser beam in plasma channel created by ignitor heater technique 光导 $${varvec{q}}$ 高斯激光束在点火器加热器技术创建的等离子通道中激发电子等离子波
Journal of Optics Pub Date : 2024-07-10 DOI: 10.1007/s12596-024-02009-3
Naveen Gupta, Rohit Johari, A. K. Alex
{"title":"Excitation of electron plasma wave by optically guided $${varvec{q}}$$-gaussian laser beam in plasma channel created by ignitor heater technique","authors":"Naveen Gupta, Rohit Johari, A. K. Alex","doi":"10.1007/s12596-024-02009-3","DOIUrl":"https://doi.org/10.1007/s12596-024-02009-3","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141662644","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
Mitigation of laser plasma filamentation by rotating beam smoothing scheme 通过旋转光束平滑方案缓解激光等离子体丝状化问题
Journal of Optics Pub Date : 2024-07-09 DOI: 10.1088/2040-8986/ad60db
Hongbin Nie, Hao Xiong, Zheqiang Zhong, Bin Zhang
{"title":"Mitigation of laser plasma filamentation by rotating beam smoothing scheme","authors":"Hongbin Nie, Hao Xiong, Zheqiang Zhong, Bin Zhang","doi":"10.1088/2040-8986/ad60db","DOIUrl":"https://doi.org/10.1088/2040-8986/ad60db","url":null,"abstract":"\u0000 The propagation of intense laser beams in plasma inevitably gives rise to laser plasma instabilities, which have a significant impact on the illumination uniformity of the focused spot on the target in inertial confinement fusion (ICF) facilities. Here we propose an ultrafast smoothing scheme using a rotating beam (RB) to mitigate the laser plasma filamentation. Using the propagation model of the rotating beam in plasma for the laser-plasma self-focusing (SF) and filamentation, the filamentation characteristics of laser spots were analyzed. The results indicate that the rotating beam smoothing scheme, operating at picosecond timescale, exhibits superior mitigation effect of laser plasma filamentation.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141665243","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
Enabling VLC data centers with DCO-OFDM technology 利用 DCO-OFDM 技术实现 VLC 数据中心
Journal of Optics Pub Date : 2024-07-09 DOI: 10.1007/s12596-024-01967-y
Kaushal Kumar Kaushal, Vandana Yadav, Divya Jain
{"title":"Enabling VLC data centers with DCO-OFDM technology","authors":"Kaushal Kumar Kaushal, Vandana Yadav, Divya Jain","doi":"10.1007/s12596-024-01967-y","DOIUrl":"https://doi.org/10.1007/s12596-024-01967-y","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141665770","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
Optimization of slow light under EIT in semiconductor multiple quantum wells 优化半导体多量子阱中 EIT 下的慢速光
Journal of Optics Pub Date : 2024-07-09 DOI: 10.1007/s12596-024-02017-3
Chandrika Barman, Darshana Bora, Nitu Borgohain
{"title":"Optimization of slow light under EIT in semiconductor multiple quantum wells","authors":"Chandrika Barman, Darshana Bora, Nitu Borgohain","doi":"10.1007/s12596-024-02017-3","DOIUrl":"https://doi.org/10.1007/s12596-024-02017-3","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141663352","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
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