P (mW cm-2)	Upconversion Quantum Yield (%)
0.8832	0.44569
3.4313	1.21105
8.5602	2.33408
10.4247	2.70558
17.1204	4.05986
20.8494	4.24356
32.8835	5.56093
51.8152	6.52754
82.0359	7.67107
164.0718	9.53989
200	10.38722
300	10.1633
400	10.35982
500	10.55448