Material behavior under extreme domain constraint in laser-assisted surface nanostructuring

Li, Chong; Zhang, Lijun; Li, Yan; Wang, Xinwei

doi:10.1016/j.physleta.2015.12.001

Cited by 6 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the SPL technique, the nanoscale fabrication is achieved by processing the specimen surface with the nanotip where a hotspot is formed at its apex. There have been plenty of simulation works − in nanotip temperature prediction and heat transfer at the nanoscale − so far, whereas the experimental studies are very limited as they are not easy to implement. This is because only the traditionally used thermocouples in the nano version would be applicable for temperature measurement at such a tiny scale.…”

Section: Introductionmentioning

confidence: 99%

Picosecond-Resolved Raman Response of a Si Nanotip for Probing Temperature and Thermal Stress in the Confined Regime under Laser Heating

Deng

Gao

et al. 2022

J. Phys. Chem. C

View full text Add to dashboard Cite

Tip-assisted lithography is a technique full of potential for nanofabrication and data storage, allowing for nanofabrication within several nanometers using the heated nanotip. Thus, the knowledge of the instantaneous thermal response of the nanotip under the laser heating is important for temperature control. In this work, a prototype of an ultrafast thermal probing method for the apex of a silicon nanotip has been achieved. Instead of obtaining an average thermal response over the entire nanotip, the temperature and thermal stress in the confined apex region of the nanotip were successfully measured in picosecond duration. Furthermore, to understand the heat transfer process in the nanotip, comparative studies were conducted on a silicon micro-cantilever and a silicon wafer, respectively. Experiment-based simulation further revealed that the equivalent thermal conductivity of the nanotip is ∼35 W/(m•K), substantiating the reduction in the thermal conductivity of nanomaterials due to the size effect. Both nonuniform laser absorption and heat transfer deterioration in the nanotip contribute to the nonuniform temperature distribution, thermal stress, and thermal deformation. This work is expected to provide important insights into the thermal response of the nanotip and an effective way for fast thermal characterization of nanomaterials.

show abstract

Section: Introductionmentioning

confidence: 99%

Picosecond-Resolved Raman Response of a Si Nanotip for Probing Temperature and Thermal Stress in the Confined Regime under Laser Heating

Deng

Gao

et al. 2022

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

“…The spatial confinement-induced temperature rise has been reported [21]. Furthermore, the effect of SPM tip confinement in the nanostructuring has been studied [22]. The dynamics of the melting of a surface nanolayer and the formation of thermal and shock waves in metals irradiated by femtosecond laser pulses has been investigated both experimentally and theoretically [24].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, internal ablation has very different characteristics from the open-space ablation: the material's phase change is extremely confined by the solid material surrounding it. The constraint in the open space has been studied in Wang's group [20][21][22]. Laser-material interaction with the presence of ambient gas leads to the formation of shock wave, which can significantly affect the phase change process.…”

Section: Introductionmentioning

confidence: 99%

Solid-to-super-critical phase change and resulting stress wave during internal laser ablation

Yao

et al. 2018

Journal of Thermal Stresses

Self Cite

View full text Add to dashboard Cite

The mechanisms of phase change of argon during picosecond laser internal ablation are studied using molecular dynamics simulations. It is found that propagation of stress wave and fluctuation of temperature are periodical. The phase change process from solid to liquid to supercritical fluid then back to solid occurs as combined results of heating and the propagation of tensile stress wave induced by the laser pulse and the limited internal space.

show abstract

Recent Progress in Near‐Field Tip Enhancement: Principles and Applications

Yin

Zhang

Wang

et al. 2022

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

The micro/nano probe tip of a scanning probe microscope irradiated by a laser to induce near-field tip enhancement (NFTE) is a state-of-the-art technique of nanoscience that has witnessed significant advances in cutting-edge research. This technique can be applied to the field of nanofabrication and nanojoining/ nanomanipulation to enable the fabrication of nano-/molecular-scale devices. However, literature reviews are currently unavailable in the areas of nanofabrication, nanojoining, and nanomanipulation, preventing researchers from accessing a comprehensive understanding of NFTE. Herein, the essential principles and recent applications of NFTE induced by laser-irradiated SPM probe tips are reviewed. The physical mechanism and the limiting factors are summarized in detail. The pivotal applications of NFTE in nanofabrication, nanojoining, and nanomanipulation are highlighted, along with the challenges and perspectives on NFTE for the fabrication of nanostructures. This review offers insight into NFTE for the advancement of nanotechnology. With in-depth theoretical and experimental research, the NFTE is expected to have a significant impact on industrial applications of nanotechnology.

show abstract

Material behavior under extreme domain constraint in laser-assisted surface nanostructuring

Cited by 6 publications

References 52 publications

Picosecond-Resolved Raman Response of a Si Nanotip for Probing Temperature and Thermal Stress in the Confined Regime under Laser Heating

Picosecond-Resolved Raman Response of a Si Nanotip for Probing Temperature and Thermal Stress in the Confined Regime under Laser Heating

Solid-to-super-critical phase change and resulting stress wave during internal laser ablation

Recent Progress in Near‐Field Tip Enhancement: Principles and Applications

Contact Info

Product

Resources

About