Add Zinc Selenide (ZnSe; often used for IR instruments) transmission …

…data to the optics "database"

src/etc/data/comp/optics/ZnSe_transmission.csv

@@ -0,0 +1,36 @@
+# mks Newport Zinc Selenide transmission
+Wavelength [um],Transmission [%]
+0.6,0.0
+0.6081687269541172,19.961876223817697
+0.6095113398357764,39.96180205304694
+0.6135569886416508,56.40894796178721
+0.6412228975909252,59.96009612531893
+0.6730983854737077,62.45846436836171
+0.7034490765931198,64.16750726873553
+0.7548823095958328,65.74408117249155
+0.8029620298356647,66.92621491722542
+0.8578792858399883,67.84504242568089
+0.9085033459734396,68.36942977511421
+1.0188898367380812,69.4182044739809
+1.310103738650206,69.93606479558534
+1.6624090987919442,70.19121224707766
+1.9744173372848584,70.71174271643031
+2.494340656883339,71.88809114104313
+2.859785911130845,72.14665044799145
+3.9985708589639644,72.53011333293776
+5.051514527652158,72.39067228386637
+9.081787511201638,72.37094285883818
+10.051382519486713,72.10437310864533
+10.551041410192004,71.31326766747759
+10.833974188481402,70.12816709191242
+11.124493986280852,64.99569809529459
+11.173665785947971,62.89028659585829
+11.42280425426651,61.31059751972941
+11.729113898771699,60.12549694416423
+11.885335298152315,57.361894024802695
+11.990637155995715,49.861597341719566
+12.150341813324605,39.9927312644633
+12.312173595112412,29.729128345101756
+12.586697294847184,19.5968076900255
+12.810716893122944,9.727793271227668
+13,0.0