Ultrafast dynamics of the thin surface plasma layer and the periodic ripples formation on GaP crystal irradiated by a single femtosecond laser pulse

Liu, Jukun; Zhao, Hua; Cheng, K. L.; Ju, Jiaqi; Feng, Donghai; Zhang, Shian; Sun, Zhenrong; Jia, Tianqing

doi:10.1364/oe.27.037859

Cited by 11 publications

(9 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 7 shows that the LSFL period increased from 685 nm to 770 nm when the fluence increased from 0.73 to 3.42 J/cm 2 25 , which was similar to the results for Si, GaP, and ZnO crystals 51,52,98,99 . The SPP wavelength of gold was 780 nm for 800 nm light, which was significantly larger than the experimental value.…”

Section: Ultrafast Dynamics Of Lips Formation Based On Pump-probe Ima...supporting

confidence: 80%

Femtosecond laser-induced periodic structures: mechanisms, techniques, and applications

Zhang¹,

Jiang²,

Long³

et al. 2022

OES

Self Cite

View full text Add to dashboard Cite

Over the past two decades, femtosecond laser-induced periodic structures (femtosecond-LIPSs) have become ubiquitous in a variety of materials, including metals, semiconductors, dielectrics, and polymers. Femtosecond-LIPSs have become a useful laser processing method, with broad prospects in adjusting material properties such as structural color, data storage, light absorption, and luminescence. This review discusses the formation mechanism of LIPSs, specifically the LIPS formation processes based on the pump-probe imaging method. The pulse shaping of a femtosecond laser in terms of the time/frequency, polarization, and spatial distribution is an efficient method for fabricating high-quality LIPSs. Various LIPS applications are also briefly introduced. The last part of this paper discusses the LIPS formation mechanism, as well as the high-efficiency and high-quality processing of LIPSs using shaped ultrafast lasers and their applications.

show abstract

Section: Ultrafast Dynamics Of Lips Formation Based On Pump-probe Ima...supporting

confidence: 80%

Femtosecond laser-induced periodic structures: mechanisms, techniques, and applications

Zhang¹,

Jiang²,

Long³

et al. 2022

OES

Self Cite

View full text Add to dashboard Cite

show abstract

“…has its own unique ESA spectrum. Population dynamics can be inferred by distinguishing and identifying the features 59‐61 . The kinetics are fitted by a multiple‐exponential function, ∆A( t ) = a 1 exp(− t / τ 1 ) + a 2 exp(− t / τ 2 ) + … + a n exp(− t / τ n ) – c 1 exp(− t / τ et ), where a 1 , a 2 , …, a n and c 1 are amplitudes; τ 1 , τ 2 , … , τ n are decay time constants and τ et is formation time constant.…”

Section: Methodsmentioning

confidence: 99%

Multiexciton state of singlet fission in triisopropylsilylethynyl‐pentacene

Cui

Jiang

Zhang

et al. 2021

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Singlet fission (SF) is a spin-allowed conversion process, in which one singlet exciton is replaced by a pair of triplet excitons resided on adjacent molecules. To rationalize this phenomenon, a multiexcitonic spin-zero triplet-pair state is generally hypothesized as an intermediate state for SF. However, the details of its formation during the fission process, and its subsequent evolution over time are still remain unclear. Thus, this work provides a model of the SF system for triisopropylsilylethynyl-pentacene by using femtosecond time-resolved transient absorption spectroscopy. A mixed state of singlet and multiexciton, which mediates the ultrafast SF process is directly observed. This work represents a new viewpoint for the research on SF intermediates.

show abstract

“…The formation of LIPSSs is a universal phenomenon observed on semiconductors, dielectrics, metals and thin films [ 2 , 5 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. According to the relationship between incident laser wavelength λ and the period of induced surface structures Λ , LIPSS can be classified as high spatial frequency LIPSS (HSFL, Λ < 0.5 λ ) and low spatial frequency LIPSS (LSFL, 0.5 λ < Λ < λ ) [ 5 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. LIPSSs exhibit great potential for applications in many fields, such as structural colors [ 18 , 27 , 28 , 29 ], color-based anti-counterfeiting [ 30 ], superhydrophobicity [ 31 , 32 ] and birefringence [ 33 , 34 , 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Regular Periodic Surface Structures on Indium Tin Oxide Film Efficiently Fabricated by Femtosecond Laser Direct Writing with a Cylindrical Lens

et al. 2022

Self Cite

View full text Add to dashboard Cite

Regular laser-induced periodic surface structures (LIPSS) were efficiently fabricated on indium tin oxide (ITO) films by femtosecond laser direct writing with a cylindrical lens. It was found that randomly distributed nanoparticles and high spatial frequency LIPSSs (HSFL) formed on the surface after a small number of cumulative incident laser pulses per spot, and regular low spatial frequency LIPSSs (LSFL) appeared when more laser pulses accumulated. The mechanism of the transition was studied by real-time absorptance measurement and theoretical simulation. Results show that the interference between incident laser and surface plasmon polaritons (SPPs) excited by random surface scatterers facilitates the formation of prototype LSFLs, which in turn enhances light absorption and SPP excitation following laser pulses. The effects of scanning velocity and laser fluence on LSFL quality were discussed in detail. Moreover, large-area extremely regular LSFL with a diameter of 30 mm were efficiently fabricated on an ITO film by femtosecond laser direct writing with the cylindrical lens. The fabricated LSFLs on the ITO film demonstrate vivid structural color. During LSFL processing, the decrease of ITO film thickness leads to the increase of near-infrared optical transmittance.

show abstract

Ultrafast dynamics of the thin surface plasma layer and the periodic ripples formation on GaP crystal irradiated by a single femtosecond laser pulse

Cited by 11 publications

References 55 publications

Femtosecond laser-induced periodic structures: mechanisms, techniques, and applications

Femtosecond laser-induced periodic structures: mechanisms, techniques, and applications

Multiexciton state of singlet fission in triisopropylsilylethynyl‐pentacene

Regular Periodic Surface Structures on Indium Tin Oxide Film Efficiently Fabricated by Femtosecond Laser Direct Writing with a Cylindrical Lens

Contact Info

Product

Resources

About