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Table 1 Experimental ratios ( r / a ) for the different combinations of proton fluence and applied current density ( J )

From: Highly flexible method for the fabrication of photonic crystal slabs based on the selective formation of porous silicon

Fluence (proton/cm) J(mA/cm2)
3 30 300
5e10 0.237 0.295 0.381
8e10 0.213 0.267 0.356
1e11 0.192 0.240 0.308