Germanium based photonic components toward a full silicon/germanium photonic platform
Publication date: Available online 20 May 2017 Source:Progress in Crystal Growth and Characterization of Materials Author(s): V. Reboud, A. Gassenq, J.M. Hartmann, J. Widiez, L. Virot, J. Aubin, K. Guilloy, S. Tardif, J.M. Fédéli, N. Pauc, A. Chelnokov, V. Calvo Lately, germanium based materials attract a lot of interest as they can overcome some limits inherent to standard Silicon Photonics devices and can be used notably in Mid-Infra-Red sensing applications. The quality of epitaxially grown intrinsic and doped materials is critical to reach the targeted performances. One of the main challenges in the field remains the fabrication of efficient group-IV laser sources compatible with the microelectronics industry, seen as an alternative to the complexity of integration of III-V lasers on Si. The difficulties come from the fact that the group-IV semiconductor bandgap has to be transformed from indirect to direct, using high tensile strains or by alloying germanium with tin. Here, we review recent progresses on critical germanium-based photonic components such as waveguides, photodiodes and modulators and discuss the latest advances towards germanium-based lasers. We show that novel optical germanium-On-Insulator (GeOI) substrates fabricated by the Smart Cut™ technology is a key feature for future Si - Complementary Metal Oxide Semiconductor (CMOS) - compatible laser demonstration. This review hints at a future photonics platform based on germanium and Sili...
This report continues the development of ALIs as a clinical tool in wildlife while systematically testing one possible method for determining an optimal ALI for a particular species. PMID: 32228119 [PubMed - as supplied by publisher]
Authors: Park J, Kim J, Chen Y, Song HC, Chen Y, Zheng M, Surh YJ, Kim UH, Park JW, Joe Y, Chung HT Abstract Oxidative stress is recognised as a key factor that can lead to cellular senescence and aging. Carbon monoxide (CO) is produced by haemoxygenase-1 (HO-1), which exerts cytoprotective effects in aging-related diseases, whereas the effect of CO on cellular senescence and aging has not been elucidated. In the current study, we clearly demonstrated that CO delays the process of cellular senescence and aging through regulation of miR-34a and Sirt1 expression. CO reduced H2O2-induced premature senescence in human ...
Publication date: Available online 1 April 2020Source: Journal of Microbiological MethodsAuthor(s): Wisnu Tafroji, Felicia Monica Bernadette, Ernawati A. Giri Rachman, Dodi Safari
Publication date: Available online 2 April 2020Source: Journal of Microbiology, Immunology and InfectionAuthor(s): Chun-Min Kang, Xiang-Jun Chen, Ching-Chin Chih, Chen-Ching Hsu, Ping-Hung Chen, Tai fen Lee, Lee-Jene Teng, Po-Ren Hsueh
Publication date: Available online 1 April 2020Source: Journal of Microbiology, Immunology and InfectionAuthor(s): Chien-Yu Lee, Pi-Sheng Wang, Yuan-Der Huang, Yung-Ching Lin, Yung-Nien Hsu, Shih-Chung Chen
Publication date: Available online 1 April 2020Source: Journal of Microbiology, Immunology and InfectionAuthor(s): Chia-Hung Liao, Shih-Chang Hung, Yuan-Ti Lee, Hung-Chang Hung, Po-Ren Hsueh
Publication date: Available online 2 April 2020Source: Statistics &Probability LettersAuthor(s): Junhao Guo, Jie Zhou, Sanfeng Hu
Publication date: Available online 1 April 2020Source: Statistics &Probability LettersAuthor(s): S. Mousavinasr, C.R. Gonçalves, C.C.Y. Dorea
Publication date: 1 May 2020Source: Sensors and Actuators A: Physical, Volume 306Author(s): Chuang Ge, Leixiang Bian, Jiayang Li, Mingyou Zhong, Songtong Han, Yunfei Jia
Publication date: Available online 1 April 2020Source: Results in PhysicsAuthor(s): U.S. Okorie, A.N. Ikot, E.O. Chukwuocha, G.J. Rampho
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