{"title":"Switchable dual ultra-broadband perfect absorber based on graphene and vanadium dioxide hybrid metamaterials","authors":"shanshan zhuo","doi":"10.1364/josab.522445","DOIUrl":"https://doi.org/10.1364/josab.522445","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141100974","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}
{"title":"Higher-order beyond-band discrete solitons in binary waveguide arrays","authors":"Minh Tran, Truong Tran","doi":"10.1364/josab.525301","DOIUrl":"https://doi.org/10.1364/josab.525301","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141121539","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}
Programmable unitary converters are powerful tools for realizing unitary transformations, advancing fields of computing and communication. The accuracy of these unitary transformations is crucial for maintaining high fidelity in such applications. However, various physical artifacts can impair the accuracy of the synthesized transformations. A commonly employed approach uses the system’s gradient to restore accuracy. Although this gradient can indeed be physically measured using ex-ternal equipment, it leads to a rather complex optical system. In this study, we propose a standalone method for measuring matrix norm gradients, where ‘standalone’ means that no additional optical equipment is needed. This method is based on the mathematical fact that the central difference, which is generally used for the approximation of differentiation, can yield exact differentiation for any unitary transformer. Furthermore, we introduce a new matrix distance that is suitable for optimizing unitary converters which use intensity detectors at the output. Numerical analysis demonstrates that our method exhibits orders of magnitude higher tolerance to measurement noise than prior similar approaches.
{"title":"Standalone gradient measurement of matrix norm for programmable unitary converters","authors":"Yoshitaka Taguchi, Yasuyuki Ozeki","doi":"10.1364/josab.524129","DOIUrl":"https://doi.org/10.1364/josab.524129","url":null,"abstract":"Programmable unitary converters are powerful tools for realizing unitary transformations, advancing fields of computing and communication. The accuracy of these unitary transformations is crucial for maintaining high fidelity in such applications. However, various physical artifacts can impair the accuracy of the synthesized transformations. A commonly employed approach uses the system’s gradient to restore accuracy. Although this gradient can indeed be physically measured using ex-ternal equipment, it leads to a rather complex optical system. In this study, we propose a standalone method for measuring matrix norm gradients, where ‘standalone’ means that no additional optical equipment is needed. This method is based on the mathematical fact that the central difference, which is generally used for the approximation of differentiation, can yield exact differentiation for any unitary transformer. Furthermore, we introduce a new matrix distance that is suitable for optimizing unitary converters which use intensity detectors at the output. Numerical analysis demonstrates that our method exhibits orders of magnitude higher tolerance to measurement noise than prior similar approaches.","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141126450","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}
K. Gravesen, Asger Brimnes Gardner, Emil Ulsig, E. Stanton, Mikkel Torrild Hansen, S. Thomsen, Lucas Ahler, Nicolas Volet
{"title":"Nonlinear Schrödinger Equation for Integrated Photonics","authors":"K. Gravesen, Asger Brimnes Gardner, Emil Ulsig, E. Stanton, Mikkel Torrild Hansen, S. Thomsen, Lucas Ahler, Nicolas Volet","doi":"10.1364/josab.517190","DOIUrl":"https://doi.org/10.1364/josab.517190","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140971201","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}
Ananga-Mohan Datta, Armando Perez Leija, Kurt Busch
{"title":"Tailoring the non-classicality of light states via mode detuning in waveguide beam splitters","authors":"Ananga-Mohan Datta, Armando Perez Leija, Kurt Busch","doi":"10.1364/josab.521859","DOIUrl":"https://doi.org/10.1364/josab.521859","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140966621","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}
{"title":"S+E+O-band luminescence and enhancement in Nd3+/Tm3+/Ce3+ doped tellurite glass","authors":"dexing zhou, Shuhong Wang, Dongyi Zhao, Liqiao Zhu, Yaxun Zhou","doi":"10.1364/josab.523177","DOIUrl":"https://doi.org/10.1364/josab.523177","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140975354","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}
Yue Feng, jiaru Han, Tao Shen, Haodong Wu, Zhiliang Qin
{"title":"A D-type photonic crystal fiber refractive index sensor based on Bloch surface waves","authors":"Yue Feng, jiaru Han, Tao Shen, Haodong Wu, Zhiliang Qin","doi":"10.1364/josab.524608","DOIUrl":"https://doi.org/10.1364/josab.524608","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140975114","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}
{"title":"Theory of quasi-phase-matched optical parametric oscillator of backward wave: threshold and spectrum","authors":"Rena Kasumova","doi":"10.1364/josab.519051","DOIUrl":"https://doi.org/10.1364/josab.519051","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140976969","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}
Yang Lan, Haozhen Li, Ran Zeng, Xiaopei Zhang, Miao Hu, mengmeng xu, Xuefang Zhou, Qiliang Li
{"title":"Tunable targeted single-photon routing in a waveguide-QED structure containing a time-modulated two-level atom","authors":"Yang Lan, Haozhen Li, Ran Zeng, Xiaopei Zhang, Miao Hu, mengmeng xu, Xuefang Zhou, Qiliang Li","doi":"10.1364/josab.521931","DOIUrl":"https://doi.org/10.1364/josab.521931","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140985224","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}
{"title":"Fractional squashed entanglement and its efficiency","authors":"E. El-Hadidy, Khadija EL ANOUZ, N. Metwally","doi":"10.1364/josab.519282","DOIUrl":"https://doi.org/10.1364/josab.519282","url":null,"abstract":"","PeriodicalId":501621,"journal":{"name":"Journal of the Optical Society of America B","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140985291","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}
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