Efficient blue upconversion emission due to confined radiative energy transfer in Tm3+–Nd3+ co-doped Ta2O5 waveguides under infrared-laser excitation
2008 ◽
Vol 281
(14)
◽
pp. 3691-3694
◽
Keyword(s):
1991 ◽
Vol 184
(5-6)
◽
pp. 537-544
◽
Keyword(s):
2021 ◽
Vol 557
◽
pp. 120580
◽
2021 ◽
Vol 41
(15)
◽
pp. 7835-7844
1997 ◽
Vol 71
(3)
◽
pp. 221-228
◽