Femtosecond laser induced micropatterning of graphene film

Kalita, Golap; Qi, Litao; Namba, Yoshiharu; Wakita, Koichi

doi:10.1016/j.matlet.2011.02.057

Cited by 78 publications

(57 citation statements)

References 22 publications

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“…Recently, a number of publications devoted to laser-induced structure modification (creation of defects) appeared [4][5][6][7][8]. A limited success was reported for laser ablation: either all graphene layers or selected areas of graphene sheet with the dominant number of layers could be removed by single laser pulses [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Laser-induced local profile transformation of multilayered graphene on a substrate

Фролов

Pivovarov

Zavedeev

et al. 2015

Optics & Laser Technology

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Section: Introductionmentioning

confidence: 99%

Laser-induced local profile transformation of multilayered graphene on a substrate

Фролов

Pivovarov

Zavedeev

et al. 2015

Optics & Laser Technology

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“…[13][14][15] Using this cumulative effect, a range of structures including micro-and nano-ribbons and nanodots have been processed in graphene using femtosecond lasers in the kHz and MHz regimes. 12,16 Although the threshold effect in the single shot regime can be used to generate nanostructures of dimension well below the laser wavelength, the precise positioning of the sample with respect to the laser beam waist is an extremely severe constraint. 17 The use of nondiffracting Bessel beams, however, drastically reduces this constraint since their shape is invariant over a longitudinal distance much longer than the Rayleigh range of equivalent Gaussian beams.…”

mentioning

confidence: 99%

Femtosecond laser fabrication of micro and nano-disks in single layer graphene using vortex Bessel beams

Wetzel

Xie

Lacourt

et al. 2013

Applied Physics Letters

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International audienceWe report the fabrication of micro and nano-disks in single layer chemical vapor deposition graphene on glass substrate using femtosecond laser ablation with vortex Bessel beams. The fabricated graphene disks with diameters ranging from 650 nm to 4 μm were characterized by spatially resolved micro-Raman spectroscopy. The variation of ablation threshold was investigated as a function of the number of pulses showing an incubation effect. A very high degree of size control of the fabricated graphene disks is enabled using a sequence of femtosecond pulses with different vortex orders

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“…To exploit these properties of graphene in the miniaturized devices, controlled patterning of graphene films is essential as the performance of the devices highly depends on the quality of the produced patterns. Laser patterning is an attractive technique to do so and the laser parameters can be easily adjusted to obtain high quality patterns …”

Section: Introductionmentioning

confidence: 99%

Evaluating Single Layer Graphene Micropatterns Induced by Ti:Sa Laser Irradiation

Mortazavi

Mollabashi

Barri

et al. 2018

Phys. Status Solidi A

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Due to the unique optical and electrical properties of graphene and its potential application in microelectronics and spintronics, precise micropatterning graphene on substrates has found significant attention for optimal performance of many these applications. This study investigates the process of patterning single layer graphene on a SiO2/Si substrate using Ti:Sa laser irradiation. A variety of laser fluences are employed for the removal of graphene from the substrate surface as the film is scanned at different speeds and required laser fluences for the removal of graphene are determined at these speeds. This is performed because pulse overlapping is an effective parameter for successful removal of graphene from substrates, which results in different ablation thresholds for each laser scanning speed. Changes of produced channels widths are also investigated as a function of total laser fluences. Study of Raman spectra of patterned graphene film is performed by Raman microspectroscopy to evaluate the quality of laser produced micropatterns. It includes the investigations of intensity changes of defect D and D′ bands on graphene edge. Optical contrasts are also calculated for both graphene and graphene edge and the results are compared.

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Femtosecond laser induced micropatterning of graphene film

Cited by 78 publications

References 22 publications

Laser-induced local profile transformation of multilayered graphene on a substrate

Laser-induced local profile transformation of multilayered graphene on a substrate

Femtosecond laser fabrication of micro and nano-disks in single layer graphene using vortex Bessel beams

Evaluating Single Layer Graphene Micropatterns Induced by Ti:Sa Laser Irradiation

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