I've heard that the green ones can cut paper, but are they more powerful?
2007-04-11 11:52:59 · 8 answers · asked by Why_so_serious? 5 in Science & Mathematics ➔ Physics
Blue. Blue light has a wavelength of about 475nm while green light has a wavelength of about 510nm. The shorter the wavelength the more energy of the wave. So though the difference is slight, a blue laser pointer will have more power.
2007-04-11 11:57:13 · answer #1 · answered by rosa b 2 · 0⤊ 0⤋
first,
E = h c / L
E is energy of a photon of light
h is plancks constant
c is the speed of light
and L is the wavelength of light.
blue laser light has a frequency of say 473 nm
green lasers have a frequency of say 532 nm
since 473 is < 532, and a smaller number in the denominator of a fraction makes the total bigger, the energy of a photon of blue light is higher than the energy of a photon of green light.
more importantly is this. watts. power. how many photons of light the lasers are emmitting. And the wattage rating of a laser is based on the light output, not the power required to operate the laser.
if you have a green laser with 13% higher wattage than a blue laser (532/473 = 13% higher) then the green laser will be more powerful.
and Jose....
look here...
http://www.wickedlasers.com/lasers/Spyder_II_GX-26-3.html
2007-04-11 12:33:50 · answer #2 · answered by Dr W 7 · 1⤊ 0⤋
The power of a laser is not measured by its ability to cut through paper, as any laser can be tuned to do so.
Blue lasers require more power input and have a greater intensity than green lasers. Blue lasers require more residual power than green lasers to maintain its intensity.
They can be tuned to cut paper but require a greater constant power source...but the accuracy of the laser is greater than a green laser (due to its shorter wavelength)
Green lasers can be tuned to cut paper but don't require as much energy input as Blue lasers. The residual(constant) power that green lasers require is about 50% less than blue lasers. The reason why green lasers are used to cut paper is because they take less power.
2007-04-11 11:55:32 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Color has nothing to do with power. I can get a 1W HeNe green LASER tube, or a 5 mW blue LASER LED pointer (expensive, though for either one). Or, I can get a 2 mW green pointer and a very expensive blue Excimer LASER that is 50 Watts (and would cut paper). It depends on your application.
If all you want to do is cut paper, you are better off with a 5W CO2 LASER (infared) with a low-power red aiming LASER attached.
.
2007-04-11 11:59:57 · answer #4 · answered by tlbs101 7 · 0⤊ 2⤋
Power has to do with the power source, not the color. A laser pointer is usually powered by a very small 1.5V DC battery, so its not powerful at all.
2007-04-11 11:56:04 · answer #5 · answered by squirespeaks 2 · 0⤊ 2⤋
if u look on a light/color spectrum.... red is the least powerful... and the opposite end is more powerful... which i believe is blue or violet? if green in the middle... then it's suppsoed 2 be less..... this is why on star wars... the guy with the blue light saber beat the guy with the red (or the reason they gave the bad guy the red saber)
2007-04-11 11:57:19 · answer #6 · answered by kame121703 5 · 0⤊ 0⤋
it truly relies upon on the MW OF THE LASER. the fairway ONE WILL seem BRIGHTER as a results of fact the HUMAN EYE IS extra SUSEPTABLE TO green easy. EG a 50 mw pink laser wont seem as staggering as a 30 mw green.
2016-10-21 21:46:33 · answer #7 · answered by ? 4 · 0⤊ 0⤋
Color dont have nothing to do with power. a laser pointer would not cut thru anything but your pocket if you keep spending money on them pieces of crap
2007-04-11 11:57:24 · answer #8 · answered by B 3 · 0⤊ 2⤋