Ultraviolet upconversion luminescence of Gd3+ from Ho3+ and Gd3+ codoped oxide ceramic induced by 532-nm CW laser excitation

2011 ◽  
Vol 284 (12) ◽  
pp. 3114-3117 ◽  
Author(s):  
Feng Qin ◽  
Yangdong Zheng ◽  
Ying Yu ◽  
Changbin Zheng ◽  
Pouran Sadat Tayebi ◽  
...  
Keyword(s):  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Oxide Ceramic ◽  
Cw Laser ◽  
532 Nm

Ultraviolet and violet upconversion luminescence in Ho3+-doped Y2O3 ceramic induced by 532-nm CW laser

2011 ◽  
Vol 509 (4) ◽  
pp. 1115-1118 ◽  
Author(s):  
Feng Qin ◽  
Yangdong Zheng ◽  
Ying Yu ◽  
Zhemin Cheng ◽  
Pouran Sadat Tayebi ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Cw Laser ◽  
532 Nm

Nonlinear optical properties of colloidal carbon nanoparticles: nanodiamonds and carbon dots

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40152-40160 ◽  
Author(s):  
Irene Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Aristides Bakandritsos ◽  
Stelios Couris
Keyword(s):  
Optical Properties ◽  
Carbon Dots ◽  
Carbon Nanoparticles ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Nlo Response ◽  
Colloidal Carbon ◽  
532 Nm

Nanodiamonds (NDs) and carbon-dots (CDs) suspensions exhibit significant NLO response under both ps and ns laser excitation. NDs exhibit important optical limiting action under nanosecond visible (532 nm) and infrared (1064 nm) laser excitation.

Upconversion Luminescence of Fluoride Phosphors SrF2:Er,Yb under Laser Excitation at 1.5 μm

2018 ◽  
Vol 125 (4) ◽  
pp. 537-542 ◽  
Author(s):  
A. A. Lyapin ◽  
P. A. Ryabochkina ◽  
S. V. Gushchin ◽  
S. V. Kuznetsov ◽  
M. V. Chernov ◽  
...  
Keyword(s):  
Laser Excitation ◽  
Upconversion Luminescence

Mechanisms of the blue emission of NaYF4:Tm3+ nanoparticles excited by an 800 nm continuous wave laser

2016 ◽  
Vol 18 (37) ◽  
pp. 25905-25914 ◽  
Author(s):  
Hongxin Zhang ◽  
Tianqing Jia ◽  
Xiaoying Shang ◽  
Shian Zhang ◽  
Zhenrong Sun ◽  
...  
Keyword(s):  
Continuous Wave ◽  
Laser Excitation ◽  
Blue Emission ◽  
Quantum Transition ◽  
Continuous Wave Laser ◽  
Cw Laser ◽  
Wave Laser

Simultaneous multiwavelength excitation and the quantum transition principle are utilized to study the blue emission mechanisms of NaYF4:Tm3+ UCNPs under 800 nm CW laser excitation.

Yellow-Orange Upconversion Luminescence in NaYF4:Er3+, Yb3+ Phosphor Synthesized by Microwave Combustion Method

2011 ◽  
Vol 295-297 ◽  
pp. 551-554 ◽  
Author(s):  
Jia Yue Sun ◽  
Chun Cao ◽  
Hai Yan Du
Keyword(s):  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Green Emission ◽  
Combustion Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Two Photon ◽  
Yellow Orange ◽  
Photon Process ◽  
Microwave Combustion Method

Erbium and ytterbium co-doped sodium yttrium fluoride (NaYF4:Er3+,Yb3+) was synthesized by combusting in home microwave oven directly. The structure and morphology of the sample was characterized by the X-ray diffraction (XRD) and scanning electron microscopy (SEM), and its upconversion luminescence properties were investigated in detail. Under 980nm semiconductor laser excitation, the color of upconversion luminescence of NaYF4:Er3+,Yb3+ was green and red, and its upconversion spectrum exhibited distinct emission peaks at 522, 543 and 652 nm, the emission appears yellow-orange to the naked eye. The law of luminescence intensity versus pump power proved that the intense green emission at 522 and 543 nm were from Er3+(2H11/2→4I15/2and4S3/2→4I15/2), and the weaker red emission at 652 nm was from Er3+(4F9/2→4I15/2), which belong to the two photon process.

Room-temperature green to orange color-tunable upconversion luminescence from Yb3+/Mn2+ co-doped CaO

2016 ◽  
Vol 4 (42) ◽  
pp. 10154-10160 ◽  
Author(s):  
J. L. Wang ◽  
E. H. Song ◽  
M. Wu ◽  
W. B. Dai ◽  
X. F. Jiang ◽  
...  
Keyword(s):  
Diode Laser ◽  
Room Temperature ◽  
Doping Concentration ◽  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Color Tunable ◽  
Orange Color ◽  
Co Doped

Room-temperature green to orange color-tunable upconversion is achieved from Yb3+/Mn2+ co-doped CaO by adjusting the doping concentration of Mn2+ ions upon 980 nm diode laser excitation.

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