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Kumar, K. Upendra
1305
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1
Structure, morphology, photonconversion and energy transfer..:
Krishnaiah, Kummara Venkata
;
Venkatalakshmamma, P.
;
Upendra Kumar, K.
...
Ceramics International. 49 (2023) 16 - p. 26879-26889 , 2023
Link:
https://doi.org/10.1016/..
?
2
BiLaWO6: Er3+/Tm3+/Yb3+ phosphor: Study of multiple fluores..:
Pavani, K.
;
Neves, A.J.
;
Pinto, Ricardo J.B.
...
Ceramics International. 48 (2022) 21 - p. 31344-31353 , 2022
Link:
https://doi.org/10.1016/..
?
3
Neodymium-doped nanoparticles for infrared fluorescence bio..:
del Rosal, Blanca
;
Pérez-Delgado, Alberto
;
Misiak, Małgorzata
...
Journal of Applied Physics. 118 (2015) 14 - p. , 2015
Link:
https://doi.org/10.1063/..
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4
Luminescence and thermal lensing characterization of singly..:
Poma, P.Y.
;
Kumar, K. Upendra
;
Vermelho, M.V.D.
...
Journal of Luminescence. 161 (2015) - p. 306-312 , 2015
Link:
https://doi.org/10.1016/..
?
5
Yb3+/Tm3+ co-doped NaNbO3 nanocrystals as three-photon-exci..:
Pereira, A.F.
;
Kumar, K. Upendra
;
Silva, W.F.
...
Sensors and Actuators B: Chemical. 213 (2015) - p. 65-71 , 2015
Link:
https://doi.org/10.1016/..
?
6
Spectroscopy and radiation trapping of Yb3+ ions in lead ph..:
Venkata Krishnaiah, K.
;
Rajeswari, R.
;
Upendra Kumar, K.
...
Journal of Quantitative Spectroscopy and Radiative Transfer. 140 (2014) - p. 37-47 , 2014
Link:
https://doi.org/10.1016/..
?
7
Nd3+ doped LaF3 nanoparticles as self-monitored photo-therm..:
Rocha, Uéslen
;
Upendra Kumar, K.
;
Jacinto, Carlos
...
Applied Physics Letters. 104 (2014) 5 - p. , 2014
Link:
https://doi.org/10.1063/..
?
8
Dy3+-doped zinc fluorophosphate glasses for white luminesce..:
Vijaya, N.
;
Upendra Kumar, K.
;
Jayasankar, C.K.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 113 (2013) - p. 145-153 , 2013
Link:
https://doi.org/10.1016/..
?
9
Fluorescence and Spectroscopic Properties of Yb3+-Doped Pho..:
Krishnaiah, K. Venkata
;
Kumar, K. Upendra
;
Agarwal, V.
...
Physics Procedia. 29 (2012) - p. 109-113 , 2012
Link:
https://doi.org/10.1016/..
?
10
Optical properties of Ho3+ ions in lead phosphate glasses:
Srinivasa Rao, Ch.
;
Upendra Kumar, K.
;
Babu, P.
.
Optical Materials. 35 (2012) 2 - p. 102-107 , 2012
Link:
https://doi.org/10.1016/..
?
11
White and UV Emission from Swift Ion Irradiation Modified Z..:
Kumar, Yogesh
;
Herrera, Manuel
;
Singh, Fouran
...
Physics Procedia. 29 (2012) - p. 12-17 , 2012
Link:
https://doi.org/10.1016/..
?
12
Luminescence properties of Eu3+ ions in phosphate-based bio..:
Srinivasa Rao, Ch.
;
Upendra Kumar, K.
;
Jayasankar, C.K.
Solid State Sciences. 13 (2011) 6 - p. 1309-1314 , 2011
Link:
https://doi.org/10.1016/..
?
13
Optical and fluorescence spectroscopy of Eu2O3-doped P2O5–K..:
Kumar, K. Upendra
;
Babu, S. Surendra
;
Rao, Ch. Srinivasa
.
Optics Communications. 284 (2011) 12 - p. 2909-2914 , 2011
Link:
https://doi.org/10.1016/..
?
14
Optical properties of Dy3+ -doped P2O5 - K2O−MgO/MgF2−Al2O3..:
Upendra Kumar, K.
;
Srinivasa Rao, Ch.
;
Jayasankar, C.K.
...
Physics Procedia. 13 (2011) - p. 70-73 , 2011
Link:
https://doi.org/10.1016/..
?
15
Non-linear niobate nanocrystals for two-photon imaging:
Rodríguez, E. Martín
;
Kumar, K. Upendra
;
Speghini, A.
...
Optical Materials. 33 (2011) 3 - p. 258-266 , 2011
Link:
https://doi.org/10.1016/..
1-15