F. M. Sogandares and E. S. Fry, "Absorption spectrum (340­640nm) of pure
water. I. Photothermal Measurements," Appl. Opt., 36, 8699--8709,
(1997).

lambda	 absorption
 (nm) 	   (1/cm)   
380	 0.0001
390	 8.8e-05
400	 8.7e-05
410	 6.3e-05
420	 6.2e-05
430	 6.3e-05
440	 7.6e-05
450	 0.000105
460	 0.000118
470	 0.000124
480	 0.000153
490	 0.000157
500	 0.00026
510	 0.000384
520	 0.000488
530	 0.000498
540	 0.000604
550	 0.000697
560	 0.000741
570	 0.000813
580	 0.000933
590	 0.00144
600	 0.00266
610	 0.00261
620	 0.00295
630	 0.00331
640	 0.00356