Department of Physics

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Author: search.filters.author.Dr. Junaid AmjadSubject: search.filters.subject.Department of physics

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    Plasmon Assisted Quantum Cutting in Rare Earth Doped Glasses
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2023) Ahmad Wadood; CIIT/SP22-RPH-016/LHR; Dr. Junaid Amjad; LHR TP 8780
    Borophosphate based glass materials having rare earth, shows promising optical photonic and biomedical applications. Here in the current report, Ce3+ ions and AgCl are co-doped in Borophosphate glass and new hybrid glasses with different properties were prepared by using melt-quenching method. The intensities of 4f intrabands transitions of rare earth ions changed by the addition of metallic Ag nanopartciles (NPs). Photoluminescence spectroscopy of Borophosphate glass co doped with Ce3+ ions and Ag nanoparticles revealed the dynamic decay of Ce3+ ions due to the influence of Ag plasmonic nanoparticles. The optical properties of these glasses were characterized by different methods such as UV-Vis, Raman, PL (photoluminescence), FTIR and XRD. The results show the absorption and luminescence spectroscopy and the excited state lifetime that gives the optical properties of the glass.
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    Copper mediated optical properties of rare earth doped amorphous materials
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) RABIA KHALID; CIIT/FA19-RPH-025/LHR; Dr. Junaid Amjad; LHR TP 7274
    Borophosphate based glass materials having rare earth, shows promising optical photonic and biomedical applications. Here in the current report, Dy3+ ions and CuO is co-doped in Borophosphate glass and new hybrid glasses with different properties were prepared by using melt-quenching method. The intensities of 4f intrabands transitions of rare earth ions changed by the addition of metallic Cu nanopartciles (NPs). Photoluminescence spectroscopy of Borophosphate glass co-doped with Dy3+ ions and Cu nanoparticles revealed the dynamic decay of Dy3+ ions due to the influence of Cu plasmonic nanoparticles. The optical properties of these glasses were characterized by different methods as UV-Vis, Raman, PL (photoluminescence), FTIR and XRD. The results show the absorption and luminescence spectroscopy also the excited state lifetime that gives the optical properties of the glass.