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How come we can't get 1w green diodes like we can blue?






Yeah but what is the problem with doing this? what is it about the diode that makes it operate at that specific wavelength?
 
With many other effects to take into consideration, semiconductor bandgap roughly gives you emission wavelength of a laser diode (that's the 1st-order approximation).

Making semiconductor structures is difficult. Making semiconductor materials with the right combination of properties to get green light is very difficult. So making those semiconductor structures out of materials with the right combination of properties to produce green light is extremely difficult.
 
Mr tech I read the laser bible I think I somewhat understand the order stages of lasing. There are low output direct green diodes aren't there?
 
The correct molecule or substance must be designed that emits photons in the needed wavelength by the process of lasing, and its final properties must suit the conditions experienced inside of a diode. The combination of elements to achieve this may result in complex compounds to obtain certain colors. Elements have specific frequencies of photons which leave the atom when the electron changes orbitals within the atom due to a quantum input energy flux. Naturally, each element yields only a certain band of colors based on energy level states of corresponding electron orbitals for that atom. To yield only the correct green wavelength desired, the atomic structure needed is likely not very easy to reproduce in nature or in a laboratory in a manner which is cost-prohibitive for mass production.
 
Exerd said:
The correct molecule or substance must be designed that emits photons in the needed wavelength by the process of lasing, and its final properties must suit the conditions experienced inside of a diode. The combination of elements to achieve this may result in complex compounds to obtain certain colors. Elements have specific frequencies of photons which leave the atom when the electron changes orbitals within the atom due to a quantum input energy flux. Naturally, each element yields only a certain band of colors based on energy level states of corresponding electron orbitals for that atom. To yield only the correct green wavelength desired, the atomic structure needed is likely not very easy to reproduce in nature or in a laboratory in a manner which is cost-prohibitive for mass production.
Click to expand...


@_@ u lost me at quantum input energy flux....
 
^ Here, I'll translate:

The materials necessary for direct-injection green laser diodes are very hard to make.
 
due to a quantum input energy flux
Click to expand...

You'll need a capacitor for that :p

FluxCapacitor.gif
 
I'm only making sure that we know where we are obtaining the colors of light from when the photons emit from a substance. Some may wonder why we cannot simply add a little more of some "green dye mixture" to our lasing substance made in the labs. :)
 
wicked lasers are bout to release a "1-watt 532"
stay tuned
and yes I know they are bad about custie service and shipping times but ... i'm quite intrigued ...
 
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