Periodic surface structures on titanium self-organized upon double femtosecond pulse exposures

Gemini, Laura; Hashida, Masaki; Miyasaka, Yasuhiro; Inoue, Shunsuke; Limpouch, J.; Mocek, Tomáš; Shimizu, Shuji

doi:10.1016/j.apsusc.2014.12.135

Cited by 29 publications

(10 citation statements)

References 37 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of Ti, it was 74 +/-13 mJ/cm 2 . The measurements obtained from this experiment were found to be in the range of measurements for Ti reported so far: F th = 37 mJ/cm 2 [27], 50 mJ/cm 2 [28], 81 mJ/cm 2 [29]. Equation (1) means that the fluence for laser irradiated (precisely, it is laser intensity) damps exponentially from the surface of the solid in the depth direction and that digging can be performed to a depth that reaches a threshold fluence for ablation.…”

Section: Ablation Threshold Fluencesupporting

confidence: 64%

Threshold Fluence for Femtosecond Laser Nanoablation for Metals

Hashida

Miyasaka

Nishii

et al. 2016

Elect Comm in Japan

Self Cite

View full text Add to dashboard Cite

SUMMARY Femtosecond laser nanoablation of Ti by short‐pulse laser irradiation (800 nm/40 fs) is studied in the laser fluence range of 0.07 J/cm2 to 0.5 J/cm2. To determine the ablation threshold, the ablation rate dependence on laser fluence is precisely measured. Multishot ablation threshold of titanium is found to be 0.074 J/cm2 in which value is good agreement with that reported previously by other group. To discuss the ablation mechanism, all the ablation thresholds for metals previously published are plotted as a function of work function and melting temperature. We found that the ablation thresholds correlated with work function of metals. Experimental data suggested that the femtosecond laser ablation is mainly due to multiphoton absorption and optical field ionization.

show abstract

Section: Ablation Threshold Fluencesupporting

confidence: 64%

Threshold Fluence for Femtosecond Laser Nanoablation for Metals

Hashida

Miyasaka

Nishii

et al. 2016

Elect Comm in Japan

Self Cite

View full text Add to dashboard Cite

show abstract

“…Such experiments with double-pulse sequences consisting of nearinfrared femtosecond pulses were already performed on three different classes of materials (metals [20,21], semiconductors [22,23] and dielectrics [24,25]). For the metal titanium only a few studies of LIPSS formation upon double-fs-pulse irradiation are available -all performed a single irradiation wavelength (800 nm) [21,26,27]. They all do not provide information on the dependence of the fs-LIPSS on the inter-pulse delay or the polarization state.…”

Section: Introductionmentioning

confidence: 99%

Laser-induced periodic surface structures on titanium upon single- and two-color femtosecond double-pulse irradiation

Höhm¹,

Rosenfeld²,

Krüger³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

Single- and two-color double-fs-pulse experiments were performed on titanium to study the dynamics of the formation of laser-induced periodic surface structures (LIPSS). A Mach-Zehnder inter-ferometer generated polarization controlled (parallel or cross-polarized) double-pulse sequences in two configurations - either at 800 nm only, or at 400 and 800 nm wavelengths. The inter-pulse delays of the individual 50-fs pulses ranged up to some tens of picoseconds. Multiple of these single- or two-color double-fs-pulse sequences were collinearly focused by a spherical mirror to the sample surface. In both experimental configurations, the peak fluence of each individual pulse was kept below its respective ablation threshold and only the joint action of both pulses lead to the formation of LIPSS. Their resulting characteristics were analyzed by scanning electron microscopy and the periods were quantified by Fourier analyses. The LIPSS periods along with the orientation allow a clear identification of the pulse which dominates the energy coupling to the material. A plasmonic model successfully explains the delay-dependence of the LIPSS on titanium and confirms the importance of the ultrafast energy deposition stage for LIPSS formation.

show abstract

“…The periodicity of LIPSSs on the 304 stainless steel surfaces under air was about 700–900 nm, which was about 0.65–0.85 times the laser wavelength. This phenomenon was attributed to the surface plasma waves whose wavelength is 0.50–0.85 times the laser wavelength, and the increase of the electron density extends it, explained by the parametric decay [ 18 , 19 , 20 , 21 ]. On the other hand, the periodicity of LIPSSs on the 304 stainless steel surfaces in water, 5 and 10 wt% NaCl solutions, 5 and 10 wt% NaNO 3 solutions, 5 and 10 wt% Cu(NO 3 ) 2 solutions and 5 and 10 wt% CuSO 4 solutions was about 600 nm, which was about 0.56 times the laser wavelength since the refractive index of water is 1.33 [ 45 ], shortening the laser wavelength and the wavelength of the surface plasma waves.…”

Section: Resultsmentioning

confidence: 99%

“…LIPSSs with a periodicity of 0.5–0.85 times the laser wavelength are fabricated through the self-organizing way [ 18 ]. The plasma waves, induced via protrusions on a surface based on the parametric decay [ 18 , 19 , 20 , 21 ], induced surface plasmons by the interference with the incident light, resulting in periodic Coulomb explosions [ 22 ] and ablation. Nevertheless, the appropriate structure for each functionality has not been clarified, although it has been reported that fine structures are effective to alter the surface reaction.…”

Section: Introductionmentioning

confidence: 99%

Effects of Electrolyte on Laser-Induced Periodic Surface Structures with Picosecond Laser Pulses

Kodama

Natsu

2021

Nanomaterials

View full text Add to dashboard Cite

Short-pulsed laser-induced periodic surface structures (SPLIPSSs) have the possibility to control tribology, wettability and biocompatibility. Nevertheless, the optimal structure depends on each functionality, which has not been clarified. The hybrid process with a short-pulsed laser and electrochemical machining (SPLECM) is, then, proposed to fabricate micro/nano hybrid structures and to modify the surface composition for providing high functionalities with material surfaces. Electrochemical machining is a well-established micro-elution and deposition method with noncontact between a workpiece and a tool. In this study, the effects of electrolytes on SPLIPSSs were investigated experimentally by the picosecond laser irradiation on 304 stainless steel substrates in various electrolytes. The geometry of SPLIPSSs depended on the types and the concentration of electrolytes. In the case of copper nitrate solution and copper sulfate solution, LIPSSs and spheroidization of copper were obtained. This study demonstrated the possibility of SPLECM to fabricate micro/nano structures and to control surface composition.

show abstract

Periodic surface structures on titanium self-organized upon double femtosecond pulse exposures

Cited by 29 publications

References 37 publications

Threshold Fluence for Femtosecond Laser Nanoablation for Metals

Threshold Fluence for Femtosecond Laser Nanoablation for Metals

Laser-induced periodic surface structures on titanium upon single- and two-color femtosecond double-pulse irradiation

Effects of Electrolyte on Laser-Induced Periodic Surface Structures with Picosecond Laser Pulses

Contact Info

Product

Resources

About