Innehållsförteckning
Vilken färg på laser är starkast?
Laserstrålen kan ha olika färg, till exempel röd, grön eller blå. Det är inte färgen på laserstrålen som avgör hur skadlig den är. De laserpekare som innehåller starka lasrar kan orsaka allvarlig bländning och i värsta fall ge skador på ögat.
Vilken laser är förbjuden?
Alla lasrar under 5 mW är lagliga för personligt bruk. Starkare laserpekare kräver tillstånd från Strålsäkerhetsmyndigheten. Laserpekare är ett allt större problem, inte minst för polisen som arbetar med att ta fram skyddsglasögon.
What is far infrared laser?
Far-infrared laser or terahertz laser ( FIR laser, THz laser) is a laser with output wavelength in between 30-1000 µm ( frequency 0.3-10 THz), in the far infrared or terahertz frequency band of the electromagnetic spectrum . FIR lasers have application in terahertz spectroscopy, terahertz imaging as well in fusion plasma physics diagnostics.
What is infrared laser skin tightening?
Infrared laser skin tightening. The Titan device uses infrared light pulses to safely heat the dermis below the skin surface to stimulate new collagen production. The device has a continuous cooling action to protect the epidermis layer of the skin during the procedure.
Where are the strong absorption bands located in mid-infrared lasers?
Figure 1 shows that the strong absorption bands of water, methane, CO2 and polymers are mostly located in the mid-infrared. When the emission wavelength of a mid-IR laser overlaps with these resonances, the light is selectively absorbed by those materials or molecules.
What are the applications of mid-infrared lasers?
Lasers are now extensively used for material processing, surgical procedures, telecommunication, spectroscopy, defense applications and fundamental sciences. Mid-infrared lasers are increasingly attractive for research and industry since they offer unprecedented advantages in all these fields of applications. Here is why: