Step 1 was designed to achieve complete material removal to facilitate Step 2. Step 2 was performed as a high-speed refining process to realize smoother sidewalls and sharper, cleaner edges with fewer depositions and debris. Figure 2. Schematics of the two-step machining approach: (a) step...
Keywords: laser; hair removal; finite element method; FEM; modeling; Monte Carlo method; heat diffusion; necrosis; hair follicle 1. Introduction In recent decades, laser technology has become an increasingly prevalent tool for hair removal, both for aesthetic and health-related purposes [1–4]. ...
According to this page, a typical tattoo removal laser has a maximum pulse energy of about 1-2 Joules and a pulse width of about 5-10 nanoseconds. It is not known how powerful the laser was in the video.Everyone in the room should have been wearing laser safety glasses or goggles that...
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Removal of unwanted dark hair Nd yag Laseradopts the Q swithch mode, which makes use of the instantaneous emitted laser to break the pigment in ill structure. That's the laser instantaneous emit theory: centralized high energy emit suddenly, which mak...
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Thus, dielectric waveguides providing strong optical confinement can be readily fabricated, and at the same time efficient current injection and heat removal in and out of the active region can be obtained without the need for a high doping level, which would otherwise introduce large optical ...
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Meanwhile, the mechanism of femtosecond laser fabrication including phase change and material removal is completely different from the mechanisms of traditional manufacturing methods, which essentially determined by laser–electron interactions. Hence, the regulation of laser-electron interactions or electrons ...