Femtosecond transient reflection from polymer surfaces during femtosecond UV photoablation

Bor, Zs.; Rácz, B.; Szabó, Gábor; Xenakis, D.; Kalpouzos, C.; Fotakis, C.

doi:10.1007/bf01538335

Cited by 30 publications

(5 citation statements)

References 37 publications

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“…High-power laser ablation is accompanied by formation of plasma, which serves as an effective absorber of incoming radiation. On the other hand, there are experiments showing that short (UV-) pulses induce a plasma mirror at the sample surface during irradiation, 114,115 leading to a reduction of the energy portion available for material excitation.…”

Section: Femto-and Pico-second Ablationmentioning

confidence: 99%

8 Studies on laser ablation of polymers

Bityurin

2005

Annu. Rep. Prog. Chem., Sect. C

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This report reviews papers, which were published since the beginning of 2004, and focuses on works related to ''pure'' laser ablation of polymers rather than closely related topics such as ablation of biological tissues, laser cleaning of painted artworks, polymer films pulsed laser deposition, matrix assisted laser desorption ionization, and ablation of molecular solids and liquids, although some overlapping with the above subjects, which constitute now separate fields, is inevitable. Papers devoted to both application of laser ablation of polymers and study of fundamentals of the process are considered. In concluding remarks, the state of the art in modeling of laser ablation of polymers is discussed.

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Section: Femto-and Pico-second Ablationmentioning

confidence: 99%

8 Studies on laser ablation of polymers

Bityurin

2005

Annu. Rep. Prog. Chem., Sect. C

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“…The plasma mirror, PM technique has successfully been applied for the improvement of the temporal contrast [1][2][3][4][5][6]. A bottleneck is the damage of the hosting surface due to the concomitant ablation.…”

Section: Introductionmentioning

confidence: 99%

“…The dependence of the transient reflectivity of the plasma on laser intensity/fluence was mainly recorded for fused silica targets [10][11][12][13][14][15][16][17][18][19]. There were several attempts to find self-healing alternatives with appropriate PM properties, like water [5,20], organic fluids [2,5], polymers [4], liquid crystal [21] and VHS tape [22]. Optical glasses received astonishingly little attention: we could find data only for BK7 glass [23,24].…”

Section: Introductionmentioning

confidence: 99%

Time integrated transient reflectivity versus ablation characteristics of Borofloat, BK7, and B270 optical glasses ablated by 34 fs pulses

Andrásik¹,

Flender²,

Budai³

et al. 2020

Opt. Mater. Express

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Ablation and plasma mirror characteristics of Borofloat, BK7, and B270 glasses processed with 34 fs pulses of 800 nm central wavelength are compared in the 10 14-10 15 W/cm 2 intensity domain. With thresholds of 1.7-1.9 × 10 14 W/cm 2 , higher than those of fused silica, and depths saturating above 5×10 14 W/cm 2 , the three glasses behave similarly from the point of view of ablation. With reflectivity enhancements comparing favorably with that of fused silica, the glasses prove to be good plasma mirror hosts. With the steepest increase in time integrated transient reflectivity with intensity, Borofloat is the most promising candidate.

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“…Ultrafast laser processing also has exceptional versatility in the materials it can remove, including metals [17][18][19], semiconductors [20] and dielectric materials [21][22][23][24][25], and complements the material versatility of thermal spray. Ultrafast laser micromachining of thermal sprayed materials thus provides new processing techniques for rapid prototyping sensors, opening up new possibilities for thermal spray sensor and electronics applications.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast laser micromachining and patterning of thermal spray multilayers for thermopile fabrication

Chen

Longtin

Tankiewicz

et al. 2004

J. Micromech. Microeng.

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This work presents a conformal direct-write technique for rapid prototyping and manufacturing of high-density thermopiles. The technique combines thermal spray, which, as an additive process, produces blanket depositions of films and coatings, with ultrafast laser micromachining, a subtractive process to produce functional patterns. NiCr/CuNi-based (E-type) thermopiles with 19, 40 and 81 junctions have been fabricated and characterized. The electrical and thermal behavior is discussed as a function of load resistance and maximum power produced. Being made using thermal spray, these thermopiles are particularly well suited for high temperature and harsh environments.

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Femtosecond transient reflection from polymer surfaces during femtosecond UV photoablation

Cited by 30 publications

References 37 publications

8 Studies on laser ablation of polymers

8 Studies on laser ablation of polymers

Time integrated transient reflectivity versus ablation characteristics of Borofloat, BK7, and B270 optical glasses ablated by 34 fs pulses

Ultrafast laser micromachining and patterning of thermal spray multilayers for thermopile fabrication

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