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Successful demonstration of selective area doping of planar glass samples for monolithic integration of optically passive and active devices on a single chip is presented. Salt solution of erbium was delivered onto pre-sintered germano-silicate samples via a syringe. The samples were then consolidated to form dense glass layers containing regions doped with rare earth. Erbium tri-chloride solution, 0.1 M, was used during the solution doping phase, with the resulting erbium atomic percentage ranging from more than 0.1-0.4%, increasing linearly with the number of drips applied. 相似文献
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A. A. Latif H. Ahmad N. A. Awang M. Z. Zulkifli C. H. Pua Z. A. Ghani S. W. Harun 《Laser Physics》2011,21(4):712-717
In this paper, a design of a High Power Tunable Fiber Laser (HP-TFL) in C-band region from 1536.7 to 1548.6 nm is set forth
with Erbium Doped Fibers (EDFs) being used as a seeding signal and a booster amplifier. With a 1 × 16 channels Arrayed Waveguide
Grating (AWG), this setup is capable of generating 16 different wavelengths with an average output power of 20.7 dBm. 相似文献
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A pulsed laser system is realized with graphene employed as a Q-switch.The graphene is exfoliated from its solution using an optical deposition and the optical tweezer effect.A fiber ferrule that already has the graphene deposited on it is inserted into an erbium-ytterbium laser(EYL)system with linear cavity configuration.We successfully demonstrate a pulsed EYL with a pulse duration of approximately 5.9μs and a repetition rate of 20.0 kHz. 相似文献
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Pua Aileen Goh Rui Min Vivian Ee Kim-Huey Huang Yunle Liu Shao Quan Lassabliere Benjamin Yu Bin 《Chromatographia》2021,84(5):507-515
Chromatographia - The separation of isomers is one of the key issues in analysing complex natural matrices, thus commanding a higher separating power from the applied analytical system. In this... 相似文献
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D. Stošić Lj. Bezbradica G. Kostić M. Krainˇanić V. Puaća M. Ivić 《Isotopes in environmental and health studies》2013,49(5-6):180-184
Für einen groβen Futtermischer MS-2500, Typ PM-60, Fassungsvermögen 7,5 m3, Leistung 2500 kg pro Charge, wurden unter Verwendung von 24Na als Indikator und FeCo3 als chemischen Indikator der Homogenitätsgrad und die zur Homogenität der Kompoenten nötige Mischzeit festgestellt. Ferner wurden mittels üblicher Methoden der Feinheitsmodul und der Uniformitätsmodul bestimmt. 相似文献
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Rui Min Vivian Goh Kim Huey Ee Aileen Pua Yunle Huang Shao Quan Liu Benjamin Lassabliere Bin Yu 《Journal of mass spectrometry : JMS》2022,57(2):e4810
In this study, neutral loss scan and high-resolution MS/MS were used in combination to detect and tentatively identify various flavonoid and limonoid glycosides in navel orange albedo, juice, peel and pulp. These compound classes are of research interest due to their flavour and bioactive properties, and although flavonoid glycosides have been previously studied in other food matrices, to the best of our knowledge, neutral loss scans have not been used for the elucidation of limonoid glycosides. Neutral loss masses of 120, 162 and 308 Da were selected for the detection of hexose, rutinose and neohesperidose-substituted flavonoids, whereas 197 Da was explored for limonoid glycosides due to their tendency to form ammonium adducts. Fragmentation patterns obtained from targeted MS/MS were then used to differentiate rutinose and neohesperidose substituents as well as flavonoid subclasses of flavones, flavanones and flavonols. Additionally, high-resolution MS/MS was also used for the identification of aglycones by accurate mass (to four decimal places), allowing for the differentiation of aglycones with similar unit masses but different chemical formulas. In total, 19 flavonoid glycosides and six limonoid glycosides were detected. This workflow allows for a rapid screening of flavonoid and limonoid glycosides in citrus, which can be further extended to other food products such as tea. 相似文献
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Maja Miletić Dragana Vuković Irena Živanović Ivana Dakić Ivan Soldatović Dejan Maletić Saša Lazović Gordana Malović Zoran Lj. Petrović Nevena Puač 《Central European Journal of Physics》2014,12(3):160-167
In numerous recent papers plasma chemistry of non equilibrium plasma sources operating at atmospheric pressure has been linked to plasma medical effects including sterilization. In this paper we present a study of the effectiveness of an atmospheric pressure plasma source, known as plasma needle, in inhibition of the growth of biofilm produced by methicillin resistant Staphylococcus aureus (MRSA). Even at the lowest powers the biofilms formed by inoculi of MRSA of 104 and 105 CFU have been strongly affected by plasma and growth in biofilms was inhibited. The eradication of the already formed biofilm was not achieved and it is required to go to more effective sources. 相似文献
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