The interaction of a picosecond Nd: YAG laser ( wavelength 532 nm, pulse duration 40 ps) with a polycrystalline titanium nitride ( TiN) film was studied. The TiN thin film was deposited by physical vapour deposition on a silicon substrate. The titanium nitride/ silicon system was modified with an energy fluence from 0.2 to 5.9 J cm(-2). Multi- pulse irradiation was performed in air by a focused laser beam. Surface modifications were analysed after 1 - 100 successive laser pulses. Depending on the laser pulse energy and pulse count, the following phenomena were observed: ( i) increased surface roughness, ( ii) titanium nitride film cracking, ( iii) silicon substrate modification, ( iv) film exfoliation and ( v) laser- induced periodical surface structures on nano- ( NPSS) and micro- dimensions ( MPSS).

Gaković, B., Trtica, M., Batani, D., Desai, T., Panjan, P., Vasiljević Radović, D. (2007). Surface modification of titanium nitride film by a picosecond Nd : YAG laser. JOURNAL OF OPTICS. A, PURE AND APPLIED OPTICS, 9(6), S76-S80 [10.1088/1464-4258/9/6/S11].

Surface modification of titanium nitride film by a picosecond Nd : YAG laser

BATANI, DINO DIMITRI;
2007

Abstract

The interaction of a picosecond Nd: YAG laser ( wavelength 532 nm, pulse duration 40 ps) with a polycrystalline titanium nitride ( TiN) film was studied. The TiN thin film was deposited by physical vapour deposition on a silicon substrate. The titanium nitride/ silicon system was modified with an energy fluence from 0.2 to 5.9 J cm(-2). Multi- pulse irradiation was performed in air by a focused laser beam. Surface modifications were analysed after 1 - 100 successive laser pulses. Depending on the laser pulse energy and pulse count, the following phenomena were observed: ( i) increased surface roughness, ( ii) titanium nitride film cracking, ( iii) silicon substrate modification, ( iv) film exfoliation and ( v) laser- induced periodical surface structures on nano- ( NPSS) and micro- dimensions ( MPSS).
Articolo in rivista - Articolo scientifico
laser-induced surface modification; titanium nitride film; micro and nano periodical structure; picoseconds laser pulse
English
giu-2007
9
6
S76
S80
S11
none
Gaković, B., Trtica, M., Batani, D., Desai, T., Panjan, P., Vasiljević Radović, D. (2007). Surface modification of titanium nitride film by a picosecond Nd : YAG laser. JOURNAL OF OPTICS. A, PURE AND APPLIED OPTICS, 9(6), S76-S80 [10.1088/1464-4258/9/6/S11].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/6853
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