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Showing 1-20 of 1,014 results

  1. Wide near-infrared II emissions and LED application of Y2Ti2O7: Cr3+/Yb3+/Nd3+ phosphors

    Y 2 Ti 2 O 7 :Cr 3+ /Yb 3+ /Nd 3+ phosphors with broadband near-infrared emission were developed by a high-temperature solid-state method. Under the excitation...

    Zhanwen Han, Hongquan Yu, ... Baojiu Chen in Applied Physics A
    Article 13 October 2023

  2. Energy transfer characteristics of Nd3+/Yb3+-codoped phospho-silicate oxyfluoride glasses for ~ 1.0 µm laser applications

    Nd 3+ /Yb 3+ -codoped phospho-silicate oxyfluoride (PNSBYNd 0.5 Yb 0.5 ) glasses were prepared by melt-quenching technique and the structural and...

    John Reddy Vootukuru, Umamaheswari Hemakumar, ... Ravi Nirlakalla in Applied Physics A
    Article 04 October 2023

  3. High-Resolution Spectroscopy of Crystals Containing Transition Metal Ions (Review)

    Abstract

    A brief review of studies of crystals containing metal ions with unfilled f - or d -shells, made in the Institute of Spectroscopy of the...

    M. N. Popova in Optics and Spectroscopy
    Article 01 October 2023

  4. Lanthanide-Activated Upconversion Luminescent Nanomaterials

    As a nonlinear optical process, photon upconversion, utilizing consecutive absorption of multiphotons within the long-lived ladder-like intermediate...
    Dekang Xu in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  5. Solid-State Materials for Few-Cycle Pulse Generation and Amplification

    Well-established and prospective broadband solid-state active media are discussed from the point of view of their use in few-cycle oscillators and...
    Evgeni Sorokin in Few-Cycle Laser Pulse Generation and Its Applications
    Chapter

  6. Mechanisms of Luminescence in Upconversion Nanoparticles

    Upconversion nanoparticles show an increasing interest that is not bound to stop for many years to come. The upconversion is observed in various...
    Aleksandar Ćirić in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  7. Application of Upconversion Nanoparticles in Photochemistry

    Upconversion, the act of fusing many low-energy photons into one higher-energy photon, has progressed in recent years to a growing technique with...
    S. Bastani, A. Jalali Kandeloos, ... M. Ghahari in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  8. Types of Lasers

    The availability of coherent light sources has revolutionized atomic, molecular, and optical science. Since its invention in 1960, the laser has...
    Richard S. Quimby, Richard C. Powell in Springer Handbook of Atomic, Molecular, and Optical Physics
    Chapter 2023

  9. Effects of Calcination Temperature and Rare Earth Substituting on the Crystal Structure and Magnetic Properties of Sr0.95Re0.05Fe12O19 (Re = La, Pr, Nd, Dy, Yb) M-type Hexaferrites

    Rare-earth substituted nanocrystalline hexagonal strontium ferrites with chemical formula Sr 1 − x Pr x Fe 12 O 19 (0 ≤  x  ≤ 0.1) and Sr 0.95 Re 0.05 Fe 12 O 19 ...

    Shan Tang, Weijie Chen, ... Bo Hong in Journal of Superconductivity and Novel Magnetism
    Article 22 November 2023

  10. Upconversion Phenomenon and Its Implications in Core–Shell Architecture

    Of late, the ability of lanthanide-doped nanoparticles to upconvert NIR radiation into shorter visible and UV wavelengths has stimulated their use in...
    Shivanand H. Nannuri, Pratheeksha Rao, ... Sajan D. George in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  11. Applications of Upconversion Nanoparticles in Bio-Imaging

    The last decade has seen rapid advancement in upconversion nanoparticles (UCNPs) for biomedical applications because of their unique characteristics....
    Irfan Ayoub, Rishabh Sehgal, ... Vijay Kumar in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  12. Upconversion Luminescence and Temperature Sensing Performance of TiO2-ZnO:Yb3+/Ho3+ Phosphors

    In this study, TiO 2 -ZnO:Yb 3+ /Ho 3+ upconversion phosphors are synthesized by a solid-phase reaction method and their Yb 3+ concentration dependence is...

    Toshihiro Nonaka, Aoi Higa, ... Shin-Ichi Yamamoto in Brazilian Journal of Physics
    Article 03 May 2024

  13. Upconversion Luminescence Sensitized pH-Nanoprobes

    With the advancement in the field of nanotechnology, the functionalized UCNPs have shown promising results in the field of optical pH sensing at the...
    Vishab Kesarwani, Vineet Kumar Rai in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  14. Magnetic Semiconductors

    Magnetic properties are introduced into solids by paramagnetic ions. These are transition-metal ions of the iron series with a partially filled...
    Karl W. Böer, Udo W. Pohl in Semiconductor Physics
    Reference work entry 2023

  15. Measurement of Mass and Beta-Lifetime of Stored Exotic Nuclei

    In this lecture, the basic techniques and concepts of ion storage-cooler rings are first presented, such as storing, beam-focusing and beam-cooling....
    Fritz Bosch in The Euroschool Lectures on Physics with Exotic Beams, Vol. I
    Chapter

  16. Enhanced structural, dielectric and magnetic properties of CaFe12-xYbxO19 M-type hexaferrites

    The structural, magnetic, and dielectric properties of Yb ions substituted Ca-hexaferrites (Ca-HFs) synthesized using the citrate sol–gel method were...

    Muhammad Nadeem, Hasan M. Khan, ... Mehrun Nisa in Applied Physics A
    Article 30 November 2022

  17. Optically pumped Milliwatt Whispering-Gallery microcavity laser

    Whispering-gallery-mode microcavity lasers possess remarkable characteristics such as high Q factors and compact geometries, making them an essential...

    Huiqi Li, Zhaocong Wang, ... Feng Chen in Light: Science & Applications
    Article Open access 12 September 2023

  18. Nanocomposites Based on Upconversion Nanoparticles

    Through the sequential absorption of lower energy Near Infrared (NIR) photons, upconversion nanoparticles (UCNPs) can emit higher energy photons....
    S. Bastani, A. Jalali Kandeloos, ... M. Ghahari in Upconversion Nanoparticles (UCNPs) for Functional Applications
    Chapter 2023

  19. Room-temperature upconverted superfluorescence

    Superfluorescence (SF) is a unique quantum optics phenomenon arising from the assembly of self-organized and cooperatively coupled emitters. SF...

    Kai Huang, Kory Kevin Green, ... Shuang Fang Lim in Nature Photonics
    Article 29 August 2022

  20. Reactions of Ceramics: Oxides, Nitride, Carbide, Sulfides, etc.

    This chapter describes the shock reactions of ceramics, including oxides, nitrides, carbides, sulfides, etc. High-pressure forms display novel...
    Toshimori Sekine in Shock-Induced Chemistry
    Chapter 2024
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