A facile method to fabricate superamphiphobic polytetrafluoroethylene surface by femtosecond laser pulses

â¿¢Femtosecond laser was used to irradiate PTFE to form composite microstructures.â¿¢The treated PTFE surface exhibits superhydrophobic and superoleophobic properties.â¿¢The mechanism of wettability is explained with the Cassieâ¿¿Baxter model.