Femtosecond laser induced periodic surface structures on multi-layer graphene

Abstract

Articles you may be interested inPolarization dependent formation of femtosecond laser-induced periodic surface structures near stepped features Appl. Phys. Lett.

Simultaneous nanopatterning and reduction of graphene oxide by femtosecond laser pulses

“…HSFL usually appear at the contour of the laser exposed area due to the low laser intensity in this area when the beam profile intensity distribution is of Gaussian nature [35] or due to presence of initial tranches on the surface [36], whereas in this study these HSFL are nested in between the LSFL (see Figure 4 (c)). The period of the HSFL observed in this study is in accordance with the observation of LIPSS in multi-layer graphene produced by micromechanical exfoliation technique reported by Beltaos et al [14].…”

“…So far, patterned structures on graphene and GO have been achieved through several physical and chemical techniques [4], which can be classified into lithography, such as mask lithography [6], soft-lithography including transfer printing [7,8], and direct laser writing [9][10][11][12][13] including periodic structuring of multi-layer graphene [14] and two-beam laser interference reduction and patterning of GO [15,16]. These methods, however, are either based on patterning graphene after or before its production.…”

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

“…By adjusting the time delay between laser pulse trains, we can further manipulate the laser processing to achieve more complex topography 51 . The FPL strategy has also been proven to be capable of breaking the diffraction limit by applying suitable experimental parameters 21,47 . Apart from this, we should also emphasize that the phenomenon here is different from others, although similar works have been covered in previous reports [23][24][25][26][27] .…”

“…In the experiment, when the thickness of the GO film is less than 50 nm, both the repeatability and regularity of the rGO-LIPSS greatly decrease, which may be due to the decrease in both TE-SP wave generation and the coupling efficiency at the reduced thickness. This may be the reason for the irregular LIPSS formation on other few-layered 2D materials 47,48 . Third, TE-SP wave excitation occurs in the transient nonequilibrium state of the material.…”

Impulzuslézerekkel módosított szén és szilícium felületek vizsgálata Raman-spektroszkópiával és ellipszometriai módszerekkel

“…Golosov és kollégái [45] szintén grafitot munkáltak meg Ti:Zafír lézer segítségével és 110 nm-es periodikus távolsággal rendelkező nanorácsot hoztak létre. Az irodalomban található olyan kutatási eredmény is, amely ~70-és 100 nm-es periódusú struktúrák létrejöttéről számol be HOPG [46], illetve többrétegű grafén [47] femtoszekundumos lézerrel történő megmunkálása esetén. Ezen kutatások és csoportok közül valamennyi a beérkező lézer és a felületen keltett plazmonok interferenciájával magyarázta a HSFL létrejöttét.…”