Shin-ichiro Sato, K. Shojiki, Ken-ichi Yoshida, Hideaki Minagawa, Hideto Miyake
{"title":"Optical activation of implanted lanthanoid ions in aluminum nitride semiconductors by high temperature annealing","authors":"Shin-ichiro Sato, K. Shojiki, Ken-ichi Yoshida, Hideaki Minagawa, Hideto Miyake","doi":"10.1364/ome.507312","DOIUrl":"https://doi.org/10.1364/ome.507312","url":null,"abstract":"","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"70 22","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Timothy Gustafson, Nancy Giles, Elizabeth Scherrer, Kevin Zawilski, Peter G. Schunemann, Kent Averett, Jonathan Slagle, Larry halliburton
{"title":"Residual optical absorption from native defects in CdSiP₂ crystals","authors":"Timothy Gustafson, Nancy Giles, Elizabeth Scherrer, Kevin Zawilski, Peter G. Schunemann, Kent Averett, Jonathan Slagle, Larry halliburton","doi":"10.1364/ome.511348","DOIUrl":"https://doi.org/10.1364/ome.511348","url":null,"abstract":"","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"5 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139156543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Lammers, A. Alberucci, Jisha Pannian, Alexander Szameit, Stefan Nolte
{"title":"Electro-optical control of polarization infemtosecond-laser written waveguides using anembedded liquid crystal cell","authors":"K. Lammers, A. Alberucci, Jisha Pannian, Alexander Szameit, Stefan Nolte","doi":"10.1364/ome.507230","DOIUrl":"https://doi.org/10.1364/ome.507230","url":null,"abstract":"","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"75 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139157168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Currently, most reported terahertz metasurfaces can only respond to terahertz waves with a single polarization state (linearly polarized or circularly polarized wave), which poses a problem of limited degrees of freedom in regulation. Facing this challenging issue, we design a functionally switchable terahertz metasurface that can achieve independent control of linearly polarized and circularly polarized terahertz waves. It comprises a top layer photosensitive silicon and metal composite structure, a middle polyimide medium, and a bottom layer metal plate. By changing the conductivity of photosensitive silicon, the same metasurface structure can achieve two different functional mode switching under different polarization wave incidences, such as switching between beam splitting and vortex beam, switching between RCS and multi vortex beams, switching between single focus and multi focus. This structure provides a new idea for the flexible regulation of terahertz waves.
{"title":"Functionally switchable terahertz metasurface under linearly polarized and circularly polarized waves incidence","authors":"Shu-ping Zhang, Jiu-Sheng Li, and Feng-lei Guo","doi":"10.1364/ome.509261","DOIUrl":"https://doi.org/10.1364/ome.509261","url":null,"abstract":"Currently, most reported terahertz metasurfaces can only respond to terahertz waves with a single polarization state (linearly polarized or circularly polarized wave), which poses a problem of limited degrees of freedom in regulation. Facing this challenging issue, we design a functionally switchable terahertz metasurface that can achieve independent control of linearly polarized and circularly polarized terahertz waves. It comprises a top layer photosensitive silicon and metal composite structure, a middle polyimide medium, and a bottom layer metal plate. By changing the conductivity of photosensitive silicon, the same metasurface structure can achieve two different functional mode switching under different polarization wave incidences, such as switching between beam splitting and vortex beam, switching between RCS and multi vortex beams, switching between single focus and multi focus. This structure provides a new idea for the flexible regulation of terahertz waves.","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"46 40 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139029121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Lutz, T. Masuda, J. P. Hadden, I. Fescenko, V. M. Acosta, W. Tittel, and P. E. Barclay
Color centers in diamond micro and nano-structures play an important role in a wide range of quantum technologies. However, obtaining high-quality color centers in small structures is challenging, as properties such as spin population lifetimes can be affected by the transition from a bulk to nanostructured crystal host. In this manuscript, we measure how population lifetimes of silicon vacancy center orbital states change when they are created in nanopillars whose diameters vary from 1 μm to 120 nm. We also discuss the influence of annealing methods on the silicon vacancy inhomogeneous linewidth. After selecting a sample with low inhomogeneous broadening and patterning it with nanopillars, we expected that restricted vibrational modes in the smallest structures could extend spin population lifetimes. However, we found that this effect was masked by other effects that reduced population lifetimes, suggesting that imperfections in the crystal lattice or surface damage caused by etching can influence SiV spins.
{"title":"Effect of the nanopillar diameter on diamond silicon vacancy center spin lifetime","authors":"T. Lutz, T. Masuda, J. P. Hadden, I. Fescenko, V. M. Acosta, W. Tittel, and P. E. Barclay","doi":"10.1364/ome.503513","DOIUrl":"https://doi.org/10.1364/ome.503513","url":null,"abstract":"Color centers in diamond micro and nano-structures play an important role in a wide range of quantum technologies. However, obtaining high-quality color centers in small structures is challenging, as properties such as spin population lifetimes can be affected by the transition from a bulk to nanostructured crystal host. In this manuscript, we measure how population lifetimes of silicon vacancy center orbital states change when they are created in nanopillars whose diameters vary from 1 <i>μ</i>m to 120 nm. We also discuss the influence of annealing methods on the silicon vacancy inhomogeneous linewidth. After selecting a sample with low inhomogeneous broadening and patterning it with nanopillars, we expected that restricted vibrational modes in the smallest structures could extend spin population lifetimes. However, we found that this effect was masked by other effects that reduced population lifetimes, suggesting that imperfections in the crystal lattice or surface damage caused by etching can influence SiV spins.","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"11 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138825070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meng Xiong, R. Christiansen, Frederik Schröder, Yi Yu, L. Casses, Elizaveta Semenova, K. Yvind, Nicolas Stenger, Ole Sigmund, J. Mørk
{"title":"Experimental realization of deep sub-wavelength confinement of light in a topology-optimized InP nanocavity","authors":"Meng Xiong, R. Christiansen, Frederik Schröder, Yi Yu, L. Casses, Elizaveta Semenova, K. Yvind, Nicolas Stenger, Ole Sigmund, J. Mørk","doi":"10.1364/ome.513625","DOIUrl":"https://doi.org/10.1364/ome.513625","url":null,"abstract":"","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"35 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138948157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Computational analysis on the role of AGT current enhancer in CZTS-based thin film solar cell","authors":"Emon Kumar Saha, Ahnaf Tahmid Abir, Md. Alamin Hossain Pappu, Sheikh Noman Shiddique, J. Hossain","doi":"10.1364/ome.510358","DOIUrl":"https://doi.org/10.1364/ome.510358","url":null,"abstract":"","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"23 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138951387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Puneet Garg, A. Lamprianidis, Sydur Rahman, N. Stefanou, E. Almpanis, N. Papanikolaou, Barbara Verfürth, Carsten Rockstuhl
{"title":"Two-step homogenization of spatiotemporalmetasurfaces using an eigenmode-basedapproach","authors":"Puneet Garg, A. Lamprianidis, Sydur Rahman, N. Stefanou, E. Almpanis, N. Papanikolaou, Barbara Verfürth, Carsten Rockstuhl","doi":"10.1364/ome.509897","DOIUrl":"https://doi.org/10.1364/ome.509897","url":null,"abstract":"","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"84 ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruhana Nishad, Lutfun Nahar Asha, Kumary Sumi Rani Shaha, A. B. M. Arafat Hossain, and Abdul Khaleque
In reality, an efficient platform for high-power laser delivery is highly important, which can be justified by readily available fiber lasers, and hollow-core fiber can be the best platform for guiding high optical power over long distances. The constraints include designing new cladding geometry, which may lead to a higher laser induced damage threshold in the fiber’s structure, having low losses along with a single mode nature. This article reports a new antiresonant fiber that has a hollow core and a triple-layered cladding configuration with only circular tube elements. The effects of multiple layers corresponding to the number of tube rings in the cladding geometry are well explored, which leads to understanding the physical insight of inter-layers. In comparison to double-layered cladding elements fiber, the proposed fiber significantly reduces loss by an order of two and reveals a minimum leakage loss of 5.82 × 10−5 dB/km at the chosen wavelength of 1.06 µm through the proper arrangement of cladding elements. We achieved a maximal higher order mode extinction ratio of about 104 (indicates the excellent single mode properties) and comparatively a little bending-induced loss of 9.00 × 10−4 dB/km, when the radius of bending is 14 cm. As a result, our studies on new multilayer fiber designs are not only useful for delivering high laser power but also serve as guidelines for the experimental realization of future multilayered cladding fibers.
{"title":"Multi-layered cladding based ultra-low loss, single mode antiresonant hollow core fibers","authors":"Ruhana Nishad, Lutfun Nahar Asha, Kumary Sumi Rani Shaha, A. B. M. Arafat Hossain, and Abdul Khaleque","doi":"10.1364/ome.504207","DOIUrl":"https://doi.org/10.1364/ome.504207","url":null,"abstract":"In reality, an efficient platform for high-power laser delivery is highly important, which can be justified by readily available fiber lasers, and hollow-core fiber can be the best platform for guiding high optical power over long distances. The constraints include designing new cladding geometry, which may lead to a higher laser induced damage threshold in the fiber’s structure, having low losses along with a single mode nature. This article reports a new antiresonant fiber that has a hollow core and a triple-layered cladding configuration with only circular tube elements. The effects of multiple layers corresponding to the number of tube rings in the cladding geometry are well explored, which leads to understanding the physical insight of inter-layers. In comparison to double-layered cladding elements fiber, the proposed fiber significantly reduces loss by an order of two and reveals a minimum leakage loss of 5.82 × 10<sup>−5 </sup>dB/km at the chosen wavelength of 1.06 µm through the proper arrangement of cladding elements. We achieved a maximal higher order mode extinction ratio of about 10<sup>4</sup> (indicates the excellent single mode properties) and comparatively a little bending-induced loss of 9.00 × 10<sup>−4 </sup>dB/km, when the radius of bending is 14 cm. As a result, our studies on new multilayer fiber designs are not only useful for delivering high laser power but also serve as guidelines for the experimental realization of future multilayered cladding fibers.","PeriodicalId":19548,"journal":{"name":"Optical Materials Express","volume":"32 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139029119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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