Table 1

Sample code MG conc. (×10−5) MFe conc. M aPeak abs. WL ( ) nm bOscillator strength (f) cFWHM ( ) cm−1 dAbs. coeff. ( ) M−1cm−1

FxM1 glass, x = 1–4

Peak I
F1M110.014430.5561931608.678.0034
F2M110.024420.5797731676.878.0034
F3M110.034470.5528591599.038.0034
F4M110.044480.9931932872.898.0026
M110.004413.93205111377.468.0000

Peak II
F1M110.015820.0137271351.540.2351
F2M110.025800.0135711336.210.2351
F3M110.035810.0137261351.460.2351
F4M1
10.045790.0137731369.460.2328
M110.005610.0705867030.670.2324

FxM4 glass, x = 1–4

Peak I
F1M4500.014500.5346993238.523.8219
F2M4500.024560.6952474210.913.8219
F3M4500.034220.6475043921.743.8219
F4M4500.044660.439282661.223.8210
M4500.004477.63363946257.753.8200

Peak II
F1M4500.016080.0001861269.530.0035
F2M4500.026080.0002591761.060.0035
F3M4500.035860.0003572430.140.0035
F4M4500.045940.000048923.380.0012
M4500.005910.0001674838.510.0008

Peak absorption wavelength ( ); boscillator strength (f) of absorption bands; cFWHM ( ) of bands; and dmolar absorption coefficient [ ] of MG in Fe-MG doped SiO2 sol-gel glasses.