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  • 1
    Online Resource
    Online Resource
    Noise canceled graphene-microcavity fiber laser sensor for ultrasensitive gas detection
    Optica Publishing Group ; 2023
    In:  Photonics Research Vol. 11, No. 8 ( 2023-08-01), p. A1-
    Details
    In: Photonics Research, Optica Publishing Group, Vol. 11, No. 8 ( 2023-08-01), p. A1-
    Abstract: Optical microcavities offer a promising platform for highly efficient light–matter interactions. Recently, the combination of microresonators and 2D materials in the nanoscale has further enriched the optoelectronics of microcavity geometries, spurring broad advances including lasers, nonlinear converters, modulators, and sensors. Here, we report the concept of compact dual-laser cogeneration in a graphene-microcavity fiber, which offers a way to cancel the optical common mode noises. Driven by a single 980 nm pump, orthogonally polarized laser lines are generated in a pair of degeneracy breaking modes. The two laser lines produce a heterodyne beat note at 118.96 MHz, with frequency noise down to 200   Hz 2 / Hz at 1 MHz offset, demonstrating a linewidth of 930 Hz in vacuum. This compact device enables on-line and label-free NH 3 gas detection with high resolution, realizing a detection limit on a single pmol/L level, and a capability to quantitatively trace gas–graphene interactions. Such a combination of graphene optoelectronics and microcavity photonics demonstrates a novel physical paradigm for microlaser control and offers a new scheme for in situ chemical sensing.
    Type of Medium: Online Resource
    ISSN: 2327-9125
    URL: Article
    DOI: 10.1364/PRJ.492473
    Language: English
    Publisher: Optica Publishing Group
    Publication Date: 2023
    detail.hit.zdb_id: 2724783-1
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  • 2
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    Online Resource
    Vision impairment, hearing impairment and functional Limitations of subjective cognitive decline: a population-based study
    Springer Science and Business Media LLC ; 2023
    In:  BMC Geriatrics Vol. 23, No. 1 ( 2023-04-14)
    Details
    In: BMC Geriatrics, Springer Science and Business Media LLC, Vol. 23, No. 1 ( 2023-04-14)
    Abstract: The association between sensory impairment including vision impairment (VI), hearing impairment (HI), dual impairment (DI) and the functional limitations of SCD (SCD-related FL) are still unclear in middle-aged and older people. Methods 162,083 participants from BRFSS in 2019 to 2020 was used in this cross-sectional study. After adjusting the weights, multiple logistic regression was used to study the relationship between sensory impairment and SCD or SCD-related FL. In addition, we performed subgroup analysis on the basis of interaction between sensory impairment and covariates. Results Participants who reported sensory impairment were more likely to report SCD or SCD-related FL compared to those without sensory impairment ( p   〈  0.001). The association between dual impairment and SCD-related FL was the strongest, the adjusted odds ratios (aORs) and 95% confidence interval (95% CI) were [HI, 2.88 (2.41, 3.43); VI, 3.15(2.61, 3.81); DI, 6.78(5.43, 8.47)] respectively. In addition, subgroup analysis showed that men with sensory impairment were more likely to report SCD-related FL than women, the aORs and 95% CI were [HI, 3.15(2.48, 3.99) vs2.69(2.09, 3.46); VI,3.67(2.79, 4.83) vs. 2.86(2.22, 3.70); DI, 9.07(6.67, 12.35) vs. 5.03(3.72, 6.81)] respectively. The subject of married with dual impairment had a stronger association with SCD-related FL than unmarried subjects the aOR and 95% CI was [9.58(6.69, 13.71) vs. 5.33(4.14, 6.87)]. Conclusions Sensory impairment was strongly associated with SCD and SCD-related FL. Individuals with dual impairment had the greatest possibility to reported SCD-related FL, and the association was stronger for men or married subjects than other subjects.
    Type of Medium: Online Resource
    ISSN: 1471-2318
    URL: Article
    DOI: 10.1186/s12877-023-03950-x
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2059865-8
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  • 3
    Online Resource
    Online Resource
    Theoretical Model for Dicke Superradiance in a Semiconductor Laser Device
    Institute of Electrical and Electronics Engineers (IEEE) ; 2011
    In:  IEEE Photonics Technology Letters Vol. 23, No. 23 ( 2011-12), p. 1817-1819
    Details
    In: IEEE Photonics Technology Letters, Institute of Electrical and Electronics Engineers (IEEE), Vol. 23, No. 23 ( 2011-12), p. 1817-1819
    Type of Medium: Online Resource
    ISSN: 1041-1135 , 1941-0174
    URL: Article
    DOI: 10.1109/LPT.2011.2169661
    Language: Unknown
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Publication Date: 2011
    detail.hit.zdb_id: 2025386-2
    detail.hit.zdb_id: 246805-0
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  • 4
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    Online Resource
    Low Loss, Large Bandwidth Fiber-Chip Edge Couplers Based on Silicon-on-Insulator Platform
    Institute of Electrical and Electronics Engineers (IEEE) ; 2020
    In:  Journal of Lightwave Technology Vol. 38, No. 17 ( 2020-9-1), p. 4780-4786
    Details
    In: Journal of Lightwave Technology, Institute of Electrical and Electronics Engineers (IEEE), Vol. 38, No. 17 ( 2020-9-1), p. 4780-4786
    Type of Medium: Online Resource
    ISSN: 0733-8724 , 1558-2213
    URL: Journal
    URL: Article
    DOI: 10.1109/JLT.50
    DOI: 10.1109/JLT.2020.2995544
    Language: Unknown
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Publication Date: 2020
    detail.hit.zdb_id: 2033229-4
    detail.hit.zdb_id: 246121-3
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  • 5
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    Online Resource
    DataSheet_1.zip
    Frontiers Media SA ; 2023
    In:  Frontiers in Plant Science Vol. 14 ( 2023-4-18)
    Details
    In: Frontiers in Plant Science, Frontiers Media SA, Vol. 14 ( 2023-4-18)
    Abstract: XG Chinese kale ( Brassica oleracea cv. ‘ XiangGu ’) is a variety of Chinese kale and has metamorphic leaves attached to the true leaves. Metamorphic leaves are secondary leaves emerging from the veins of true leaves. However, it remains unknown how the formation of metamorphic leaves is regulated and whether it differs from normal leaves. BoTCP25 is differentially expressed in different parts of XG leaves and respond to auxin signals. To clarify the function of BoTCP25 in XG Chinese kale leaves, we overexpressed BoTCP25 in XG and Arabidopsis , and interestingly, its overexpression caused Chinese kale leaves to curl and changed the location of metamorphic leaves, whereas heterologous expression of BoTCP25 in Arabidopsis did not show metamorphic leaves, but only an increase in leaf number and leaf area. Further analysis of the expression of related genes in Chinese kale and Arabidopsis overexpressing BoTCP25 revealed that BoTCP25 could directly bind the promoter of BoNGA3 , a transcription factor related to leaf development, and induce a significant expression of BoNGA3 in transgenic Chinese kale plants, whereas this induction of NGA3 did not occur in transgenic Arabidopsis . This suggests that the regulation of Chinese kale metamorphic leaves by BoTCP25 is dependent on a regulatory pathway or elements specific to XG and that this regulatory element may be repressed or absent from Arabidopsis . In addition, the expression of miR319’s precursor, a negative regulator of BoTCP25 , also differed in transgenic Chinese kale and Arabidopsis . miR319’s transcrips were significantly up-regulated in transgenic Chinese kale mature leaves, while in transgenic Arabidopsis , the expression of miR319 in mature leaves was kept low. In conclusion, the differential expression of BoNGA3 and miR319 in the two species may be related to the exertion of BoTCP25 function, thus partially contributing to the differences in leaf phenotypes between overexpressed BoTCP25 in Arabidopsis and Chinese kale.
    Type of Medium: Online Resource
    ISSN: 1664-462X
    URL: Article
    URL: Article
    DOI: 10.3389/fpls.2023.1127197
    DOI: 10.3389/fpls.2023.1127197.s001
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2023
    detail.hit.zdb_id: 2687947-5
    detail.hit.zdb_id: 2613694-6
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  • 6
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    Online Resource
    Comparative Transcriptome Analyses Reveal a Special Glucosinolate Metabolism Mechanism in Brassica alboglabra Sprouts
    Frontiers Media SA ; 2016
    In:  Frontiers in Plant Science Vol. 7 ( 2016-10-04)
    Details
    In: Frontiers in Plant Science, Frontiers Media SA, Vol. 7 ( 2016-10-04)
    Type of Medium: Online Resource
    ISSN: 1664-462X
    URL: Article
    DOI: 10.3389/fpls.2016.01497
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2016
    detail.hit.zdb_id: 2687947-5
    detail.hit.zdb_id: 2613694-6
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  • 7
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    Online Resource
    The Role of Dietary Inflammatory Index on the Association Between Sleep Quality and Long-Term Cardiovascular Risk: A Mediation Analysis Based on NHANES (2005–2008)
    Informa UK Limited ; 2022
    In:  Nature and Science of Sleep Vol. Volume 14 ( 2022-03), p. 483-492
    Details
    In: Nature and Science of Sleep, Informa UK Limited, Vol. Volume 14 ( 2022-03), p. 483-492
    Type of Medium: Online Resource
    ISSN: 1179-1608
    URL: Article
    DOI: 10.2147/NSS.S357848
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2587468-8
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  • 8
    Online Resource
    Online Resource
    DataSheet_1.docx
    Frontiers Media SA ; 2023
    In:  Frontiers in Endocrinology Vol. 14 ( 2023-3-8)
    Details
    In: Frontiers in Endocrinology, Frontiers Media SA, Vol. 14 ( 2023-3-8)
    Abstract: Previous observational studies have reported that thyroid dysfunction is associated with hallux valgus (HV). However, the causal effect of thyroid dysfunction on hallux valgus is still unknown. To assess whether there is a causal relationship between thyroid dysfunction and hallux valgus, we performed a two-sample Mendelian randomization (MR) study. Methods The data of the two-sample Mendelian randomization study were obtained from public databases. In this study, hypothyroidism, hyperthyroidism, free thyroxine (FT4), and thyrotropin (TSH) were chosen as exposures. The single nucleotide polymorphisms (SNP) of hypothyroidism and hyperthyroidism were from the genome-wide association studies (GWAS) of the IEU database, including 337,159 subjects. Data for FT4 and TSH (72,167 subjects) were extracted from the ThyroidOmics Consortium. HV was used as the outcome. The SNPs associated with HV were selected from a GWAS of 202,617 individuals in the fignngen database. The inverse variance weighted (IVW) method was used as the primary analysis. Four complementary methods were applied, including MR-presso, MR-Egger, and weighted median. In addition, Cochran’s Q test, MR-presso, MR-Egger regression, and the leave-one-out test were used as sensitivity analysis, and the MR-pleiotropy test was performed to examine pleiotropy. Results According to the results of IVW, we found that there was a causal relationship between hypothyroidism and HV, and hypothyroidism increased the incidence of HV (OR = 2.838 (95% CI: 1.116–7.213); p = 0.028). There were no significant causal effects of hyperthyroidism, FT4, and TSH on HV ( p & gt; 0.05). Sensitivity analyses showed that the results were robust and reliable, and no horizontal pleiotropy was detected. Conclusions Our findings provided genetic support that hypothyroidism might increase the risk of HV. It will predict the occurrence of HV in patients with hypothyroidism and provide suggestions for early prevention and intervention.
    Type of Medium: Online Resource
    ISSN: 1664-2392
    URL: Article
    URL: Article
    DOI: 10.3389/fendo.2023.1115834
    DOI: 10.3389/fendo.2023.1115834.s001
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2023
    detail.hit.zdb_id: 2592084-4
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  • 9
    Online Resource
    Online Resource
    Metamaterial-enabled arbitrary on-chip spatial mode manipulation
    Springer Science and Business Media LLC ; 2022
    In:  Light: Science & Applications Vol. 11, No. 1 ( 2022-06-01)
    Details
    In: Light: Science & Applications, Springer Science and Business Media LLC, Vol. 11, No. 1 ( 2022-06-01)
    Abstract: On-chip spatial mode operation, represented as mode-division multiplexing (MDM), can support high-capacity data communications and promise superior performance in various systems and numerous applications from optical sensing to nonlinear and quantum optics. However, the scalability of state-of-the-art mode manipulation techniques is significantly hindered not only by the particular mode-order-oriented design strategy but also by the inherent limitations of possibly achievable mode orders. Recently, metamaterials capable of providing subwavelength-scale control of optical wavefronts have emerged as an attractive alternative to manipulate guided modes with compact footprints and broadband functionalities. Herein, we propose a universal yet efficient design framework based on the topological metamaterial building block (BB), enabling the excitation of arbitrary high-order spatial modes in silicon waveguides. By simply programming the layout of multiple fully etched dielectric metamaterial perturbations with predefined mathematical formulas, arbitrary high-order mode conversion and mode exchange can be simultaneously realized with uniform and competitive performance. The extraordinary scalability of the metamaterial BB frame is experimentally benchmarked by a record high-order mode operator up to the twentieth. As a proof of conceptual application, an 8-mode MDM data transmission of 28-GBaud 16-QAM optical signals is also verified with an aggregate data rate of 813 Gb/s (7% FEC). This user-friendly metamaterial BB concept marks a quintessential breakthrough for comprehensive manipulation of spatial light on-chip by breaking the long-standing shackles on the scalability, which may open up fascinating opportunities for complex photonic functionalities previously inaccessible.
    Type of Medium: Online Resource
    ISSN: 2047-7538
    URL: Article
    DOI: 10.1038/s41377-022-00859-9
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2662628-7
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  • 10
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    Online Resource
    Ultra-wideband integrated photonic devices on silicon platform: from visible to mid-IR
    Walter de Gruyter GmbH ; 2023
    In:  Nanophotonics Vol. 12, No. 2 ( 2023-02-02), p. 167-196
    Details
    In: Nanophotonics, Walter de Gruyter GmbH, Vol. 12, No. 2 ( 2023-02-02), p. 167-196
    Abstract: Silicon photonics has gained great success mainly due to the promise of realizing compact devices in high volume through the low-cost foundry model. It is burgeoning from laboratory research into commercial production endeavors such as datacom and telecom. However, it is unsuitable for some emerging applications which require coverage across the visible or mid infrared (mid-IR) wavelength bands. It is desirable to introduce other wideband materials through heterogeneous integration, while keeping the integration compatible with wafer-scale fabrication processes on silicon substrates. We discuss the properties of silicon-family materials including silicon, silicon nitride, and silica, and other non-group IV materials such as metal oxide, tantalum pentoxide, lithium niobate, aluminum nitride, gallium nitride, barium titanate, piezoelectric lead zirconate titanate, and 2D materials. Typical examples of devices using these materials on silicon platform are provided. We then introduce a general fabrication method and low-loss process treatment for photonic devices on the silicon platform. From an applications viewpoint, we focus on three new areas requiring integration: sensing, optical comb generation, and quantum information processing. Finally, we conclude with perspectives on how new materials and integration methods can address previously unattainable wavelength bands while maintaining the advantages of silicon, thus showing great potential for future widespread applications.
    Type of Medium: Online Resource
    ISSN: 2192-8614
    URL: Article
    DOI: 10.1515/nanoph-2022-0575
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2023
    detail.hit.zdb_id: 2674162-3
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