Nanosecond Laser
Nanosecond Laser - Related Videos
02:15
Regulating Schwann Cell Growth In Vitro Using the Nanosecond Pulsed Electric Field Technique
0 Views •
2025
Source: Han, J., et.al. Regulating Schwann Cell Growth by Nanosecond Pulsed Electric Field for Peripheral Nerve Regeneration In Vitro. J. Vis. Exp. (2024)This video demonstrates the application of the nanosecond pulsed electric field (nsPEF) technique to modulate Schwann cell (SC) growth. The rapid electric pulses induce transient nanopores in SC membranes, facilitating calcium influx that activates signaling pathways driving SC proliferation, dedifferentiation, and neurotrophic factor...
14:18
Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
0 Views •
Cited by 2 •
2016
A protocol to detect and automate mode locking in a pre-adjusted nonlinear polarization rotation fiber laser is presented. The detection of a sudden change in the output polarization state when mode locking occurs is used to command the alignment of an intra-cavity polarization controller in order to find mode-locking conditions.
09:59
An “All-laser” Endothelial Transplant
0 Views •
Cited by 5 •
2015
An all laser procedure is proposed in the endothelial transplant. The surgical technique is based on the use of a femtosecond laser to prepare the donor tissue. Laser welding technique is then used to secure the donor endothelium in the correct position.
10:27
Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition
0 Views •
Cited by 15 •
2013
We describe the experimental method to deposit nanostructured oxide thin films by nanosecond Pulsed Laser Deposition (PLD) in the presence of a background gas. By using this method Al-doped ZnO (AZO) films, from compact to hierarchically structured as nano-tree forests, can be deposited.
09:18
In vivo Laser Axotomy in C. elegans
0 Views •
Cited by 46 •
2011
A protocol to cut neurons in C. elegans with a MicroPoint pulsed laser is presented. We describe setting up the system, immobilizing worms, and severing labeled neurons. Advantages include a relatively low-cost system and the ability to sever neuronal processes or ablate cells in vivo.
FAQs
The material’s response to absorbed energy determines whether processing produces localized heating, melting, vaporization, or controlled ablation. These outcomes represent different levels of energy-driven change, so the same pulsed source can support distinct fabrication goals. In bioengineering, this relationship helps connect laser exposure conditions with the intended modification of a biomaterial, implant, or microdevice.
Peak power matters because it concentrates substantial laser energy into each brief burst, while limited thermal exposure between pulses helps keep energy delivery temporally separated. Together, these features support localized processing and make it possible to distinguish one pulse-driven material response from another. This is important when researchers seek controlled changes in small bioengineering structures.
Amplification increases the light energy available before it is released as a short pulse. The release step then delivers that amplified energy in a concentrated burst, allowing absorbed energy to drive material changes at a localized site. This relationship links the laser’s internal operation to its ability to micromachine, pattern, or process small bioengineering structures.
Planning begins by identifying whether the goal is micromachining, surface patterning, or broader processing of biomaterials, implants, or microdevices. Researchers then relate the selected material and pulse conditions to the desired energy response, such as localized heating, melting, vaporization, or controlled ablation. This connects process choice with the intended surface or structural outcome.
The approach applies to biomaterials, implants, and microdevices, where researchers may need small-scale fabrication or controlled surface modification. Micromachining can support fabrication, while surface patterning can tailor surface properties. Processing these targets also enables studies of how engineered materials interact with biological systems, connecting manufacturing decisions with later biological investigation.
Laser-processed surfaces can help researchers examine how tailored surface properties affect the interaction between engineered materials and biological systems. The work may also produce small-scale structures whose fabrication can be studied alongside their material behavior. Consequently, the technique connects controlled laser processing with both biomaterial design and investigation of material performance in biological contexts.