Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598065
Hao Wang, V. Sorger
Owing to the transition metal dichalcogenides strong light-matter interaction and distinctive materials properties. But low carrier mobilities limited the performance of the device. Here we demonstrate an efficient plasmonic slot photodetector based on integrating MoTe2 in silicon photonics. Narrowing the source-drain distance to tens of nm enables high gain-bandwidth-product detectors.
{"title":"Compact Plasmonic Enhanced MoTe2 Photodetector based on Engineering Gain-Bandwidth-Product Scaling Laws","authors":"Hao Wang, V. Sorger","doi":"10.23919/MOC52031.2021.9598065","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598065","url":null,"abstract":"Owing to the transition metal dichalcogenides strong light-matter interaction and distinctive materials properties. But low carrier mobilities limited the performance of the device. Here we demonstrate an efficient plasmonic slot photodetector based on integrating MoTe2 in silicon photonics. Narrowing the source-drain distance to tens of nm enables high gain-bandwidth-product detectors.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128689974","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598127
Takahiro Ogura, Takumi Maeda, Shogo Suzuki, H. Shimizu
We show the design, fabrication, and characterization of a wedge-shape Au thin film for integrating multiple surface plasmon resonance transducers in a single chip, which enhances the figure-of-merit by the reflectivity change with an attenuated-total-reflection setup upon modulating the wavenumber of surface plasmon polariton with the thickness of Au.
{"title":"Enhancing the Figure of Merit in Surface Plasmon Resonance Sensors with a Wedge-Shape Au Thin Film","authors":"Takahiro Ogura, Takumi Maeda, Shogo Suzuki, H. Shimizu","doi":"10.23919/MOC52031.2021.9598127","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598127","url":null,"abstract":"We show the design, fabrication, and characterization of a wedge-shape Au thin film for integrating multiple surface plasmon resonance transducers in a single chip, which enhances the figure-of-merit by the reflectivity change with an attenuated-total-reflection setup upon modulating the wavenumber of surface plasmon polariton with the thickness of Au.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128696929","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598090
Daiki Minemura, Shuyuan Liu, Y. Shoji, T. Mizumoto
We propose and numerically demonstrate a novel tunable TE-TM mode converter which consists of a Mach-Zehnder interferometer (MZI) composed of 3-dB polarization couplers. The mode conversion is controlled by the phase difference between the two MZI arms.
{"title":"Tunable Mode Converter Based on Mach-Zehnder Interferometer","authors":"Daiki Minemura, Shuyuan Liu, Y. Shoji, T. Mizumoto","doi":"10.23919/MOC52031.2021.9598090","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598090","url":null,"abstract":"We propose and numerically demonstrate a novel tunable TE-TM mode converter which consists of a Mach-Zehnder interferometer (MZI) composed of 3-dB polarization couplers. The mode conversion is controlled by the phase difference between the two MZI arms.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114922925","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598023
Y. Hoshi
Near-infrared spectroscopy (NIRS) is a non-invasive technique for analysis of various substances, such as agricultural products and food, by using near-infrared light. Since the late 1970s, NIRS has also been developed into a powerful technique for biomedical applications. Here, NIRS and near-infrared optical tomography (NIROT) in medicine are described.
{"title":"Clinical Near-Infrared Spectroscopy and Imaging","authors":"Y. Hoshi","doi":"10.23919/MOC52031.2021.9598023","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598023","url":null,"abstract":"Near-infrared spectroscopy (NIRS) is a non-invasive technique for analysis of various substances, such as agricultural products and food, by using near-infrared light. Since the late 1970s, NIRS has also been developed into a powerful technique for biomedical applications. Here, NIRS and near-infrared optical tomography (NIROT) in medicine are described.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127404490","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598027
S. Kunimatsu, H. Kishikawa, N. Goto, J. Fujikata
We numerically investigate the influence of lateral displacement on the spiral mode sorting for Laguerre-Gaussian beam. The calculation results show that the spiral mode sorting has better tolerance to the lateral displacement compared to the ordinary mode sorting in terms of crosstalk.
{"title":"Influence of Lateral Displacement of Laguerre-Gaussian Beams on Spiral Mode Sorting","authors":"S. Kunimatsu, H. Kishikawa, N. Goto, J. Fujikata","doi":"10.23919/MOC52031.2021.9598027","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598027","url":null,"abstract":"We numerically investigate the influence of lateral displacement on the spiral mode sorting for Laguerre-Gaussian beam. The calculation results show that the spiral mode sorting has better tolerance to the lateral displacement compared to the ordinary mode sorting in terms of crosstalk.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129541526","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598135
A. Ogiwara, H. Kakiuchida
Formation of temperature dependent polymer dispersed liquid crystal is studied by irradiation of different laser speckle pattern sizes for smart window application. The speckle patterns induced by two-lens imaging are used for device fabrication, and the transmittance spectra are investigated in association with the domain size of internal structure.
{"title":"Formation of temperature dependent polymer dispersed liquid crystal using laser speckle pattern irradiation","authors":"A. Ogiwara, H. Kakiuchida","doi":"10.23919/MOC52031.2021.9598135","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598135","url":null,"abstract":"Formation of temperature dependent polymer dispersed liquid crystal is studied by irradiation of different laser speckle pattern sizes for smart window application. The speckle patterns induced by two-lens imaging are used for device fabrication, and the transmittance spectra are investigated in association with the domain size of internal structure.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"3 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134260278","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598015
Yuji Fujiwara, J. Sakamoto, Kei Watanabe, R. Kasahara
We fabricated a planar lightwave circuit consisting of non-doped silica and fluorine-doped silica and demonstrated that a waveguide with a non-doped silica core is effective to suppress the photoinduced degradation which increases the propagation loss and changes the refractive index due to the high-power blue light incident.
{"title":"Blue/green-light resistant non-doped silica waveguide for visible-light applications","authors":"Yuji Fujiwara, J. Sakamoto, Kei Watanabe, R. Kasahara","doi":"10.23919/MOC52031.2021.9598015","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598015","url":null,"abstract":"We fabricated a planar lightwave circuit consisting of non-doped silica and fluorine-doped silica and demonstrated that a waveguide with a non-doped silica core is effective to suppress the photoinduced degradation which increases the propagation loss and changes the refractive index due to the high-power blue light incident.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130831536","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598106
J. Tatum, L. Graham, J. Guenter, P. Khurana
Nearly 50 years after practical conception, VCSELs are now ubiquitous. Massive investment has been made to scale production, but has it been overbuilt? What are the most viable next commercial influences in the VCSEL market? This paper examines several of the market forces in both supply and demand of VCSELs.
{"title":"Commercialization of VCSELs","authors":"J. Tatum, L. Graham, J. Guenter, P. Khurana","doi":"10.23919/MOC52031.2021.9598106","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598106","url":null,"abstract":"Nearly 50 years after practical conception, VCSELs are now ubiquitous. Massive investment has been made to scale production, but has it been overbuilt? What are the most viable next commercial influences in the VCSEL market? This paper examines several of the market forces in both supply and demand of VCSELs.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132203910","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598103
K. Iga
The VCSEL(Vertical Cavity Surface Emitting Laser) is a very-short cavity and flat semiconductor laser and now generating new applications such as high-speed local area networks, computer mice, parallel optical interconnects, laser printers, face recognition systems, and various optical sensors.
{"title":"VCSEL: Its Concept, Physics, and Development","authors":"K. Iga","doi":"10.23919/MOC52031.2021.9598103","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598103","url":null,"abstract":"The VCSEL(Vertical Cavity Surface Emitting Laser) is a very-short cavity and flat semiconductor laser and now generating new applications such as high-speed local area networks, computer mice, parallel optical interconnects, laser printers, face recognition systems, and various optical sensors.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128301186","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}
Pub Date : 2021-09-26DOI: 10.23919/MOC52031.2021.9598049
Chengkun Zhang, H. Yoshimi, Y. Ota, S. Iwamoto
We design semiconductor-based two-dimensional photonic crystals that can support topological helical edge states below the light line. We numerically demonstrate that the edge states can guide light robustly in the waveguide even with sharp bends. The structure will be a new platform for topological nanophotonic waveguides with no radiation loss.
{"title":"Two-dimensional Topological Photonic Crystals with Helical Edge States below the Light Line","authors":"Chengkun Zhang, H. Yoshimi, Y. Ota, S. Iwamoto","doi":"10.23919/MOC52031.2021.9598049","DOIUrl":"https://doi.org/10.23919/MOC52031.2021.9598049","url":null,"abstract":"We design semiconductor-based two-dimensional photonic crystals that can support topological helical edge states below the light line. We numerically demonstrate that the edge states can guide light robustly in the waveguide even with sharp bends. The structure will be a new platform for topological nanophotonic waveguides with no radiation loss.","PeriodicalId":355935,"journal":{"name":"2021 26th Microoptics Conference (MOC)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128665067","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}