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Browsing Physics by Author "Basavaraju, N."

Browsing Physics by Author "Basavaraju, N."

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  • Controlling disorder in the ZnGa sub(2)O sub(4):Cr sup(3+) persistent phosphor by Mg sup(2+) substitution 
    Basavaraju, N.; Priolkar, K.R.; Bessiere, A.; Sharma, S.; Gourier, D.; Binet, L.; Viana, B.; Emura, S. (Physical Chemistry Chemical Physics. 19(2); 2017; 1369-1377.)
    In this work we study the effect of increasing site occupancy disorder on the persistent luminescence of Cr sup(3+) doped zinc gallate spinel. This disorder was introduced by progressive substitution of Zn sup(2+) by Mg ...
  • The importance of inversion disorder in the visible light induced persistent luminescence in Cr sup(3+) doped AB(2)O(4) (A = Zn or Mg and B = Ga or Al) 
    Basavaraju, N.; Priolkar, K.R.; Gourier, D.; Sharma, S.K.; Bessiere, A.; Viana, B. (Physical Chemistry Chemical Physics. 2015(17); 2015; 1790-1799.)
    Cr sup(3+) doped spinel compounds AB(2)O(4) with A = Zn, Mg and B = Ga, Al exhibit a long, near infrared persistent luminescence when excited with UV or X-rays. In addition, the persistent luminescence of ZnGa(2)O(4), and ...
  • Interplay between chromium content and lattice disorder on persistent luminescence of ZnGa(2)O(4):Cr3+ for in vivo imaging 
    Sharma, S.K.; Bessiere, A.; Basavaraju, N.; Priolkar, K.R.; Binet, L.; Viana, B.; Gourier, D. (Journal of Luminescence. 155; 2014; 251-256.)
    In the quest of bright and long persistent far-red/near-infrared phosphors for in vivo optical imaging, the interest in the family of ZnGa(2)O(4) spinel compounds doped with Cr3+ has been aroused in the most recent years. ...
  • Optical properties and storage capabilities in AB2O4:Cr(A = Zn, Mg, B = Ga, Al) 
    Sharma, S.K.; Bessiere, A.; Gourier, D.; Sraiki, G.; Viana, B.; Dereo, P.J.; Rudnicka, D.; Watras, A.; Basavaraju, N.; Priolkar, K.R.; Maldiney, T.; Scherman, D.; Richard, C. (Proc. SPIE 8987. Oxide based Materials and Devices 5. 2014; 89870J-.)
    Red emitting long-lasting phosphorescence (LLP) material, are useful biomarker for small animal in vivo imaging. We report here our investigations on the optical features of chromium doped AB2O4 spinels (A=Zn, Mg and B=Ga, ...
  • Order and disorder around Cr sup(3+) in chromium doped persistent luminescent AB(2)O(4) spinels 
    Basavaraju, N.; Priolkar, K.R.; Bessiere, A.; Gourier, D.; Viana, B. (Physical Chemistry Chemical Physics. 2015(17); 2015; 10993-10999.)
    The X-ray absorption near edge structure (XANES) spectroscopy technique is used to better understand the charging and decharging processes of the persistent luminescence in the Cr sup(3+)doped AB(2)O(4) spinels (A = Zn, ...
  • Origin of the visible light induced persistent luminescence of Cr3+ -doped zinc gallate 
    Gourier, D.; Bessiere, A.; Sharma, S.K.; Binet, L.; Viana, B.; Basavaraju, N.; Priolkar, K.R. (Journal of Physics and Chemistry of Solids. 75(7); 2014; 826-837.)
    ZnGa2O4:Cr3+ (ZGO:Cr) is a very bright persistent phosphor able to emit a near infrared light for hours following a UV (band to band excitation) or visible (Cr3 excitation) illumination. As such it serves as an outstanding ...
  • Persistent luminescence in ZnGa2O4:Cr: An outstanding biomarker for in-vivo imaging 
    Sharma, S.K.; Bessiere, A.; Gourier, D.; Binet, L.; Viana, B.; Basavaraju, N.; Priolkar, K.R.; Maldiney, T.; Scherman, D.; Richard, C. (Proc. SPIE 8982, Optical Components and Materials. 2014; 898215-.)
    ZnGa2O4 (ZGO) is a normal spinel. When doped with Cr3+ ions, ZGO:Cr becomes a high brightness persistent luminescence material with an emission spectrum perfectly matching the transparency window of living tissues. It ...
  • Red persistent luminescence in MgGa(2)O(4):Cr3+; a new phosphor for in vivo imaging 
    Basavaraju, N.; Sharma, S.; Bessiere, A.; Viana, B.; Gourier, D.; Priolkar, K.R. (Journal of Physics D-Applied Physics. 46(37); 2013; Article ID: 375401.)
    A new red-emitting long-lasting phosphorescence (LLP) material useful as biomarker for small animal in vivo imaging is presented. X-ray irradiated MgGa(2)O(4):Cr3+ is shown to be a suitable persistent phosphor emitting in ...
  • Storage of visible light for long-lasting phosphorescence in Chromium-doped Zinc Gallate 
    Bessiere, A.; Sharma, S.K.; Basavaraju, N.; Priolkar, K.R.; Binet, L.; Viana, B.; Bos, A.J.J.; Maldiney, T.; Richard, C.; Scherman, D.; Gourier, D. (Chemistry of Materials. 26(3); 2014; 1365-1373.)
    ZnGa(2)O(4):Cr3+ presents near-infrared long-lasting phosphorescence (LLP) suitable for in vivo bioimaging. It is a bright LLP material showing a main thermally stimulated luminescence (TSL) peak around 318 K. The TSL peak ...

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