“The energy of the individual photons does not matter, only the power matters, more specifically the power density. A red and a blue laser at the same power just emit different amounts of photons, the red emitting more. You can calculate the difference easily.

The distance will not make a difference, at the distances you'd need to see a difference you wouldn't be able to pop a balloon.

You need to take into account the beam specs, for this experiment to work each beam would need to have an identical divergence, geometry and power output. Assuming you'd see a difference in the first place. ”

I plan on keeping the power of the lasers, the beam profiles (power density), and the distances between the laser and the black balloon the same for all lasers. For my experiment, I am also assuming that the absorption spectrum of the black balloons are the same. Given that, I want to still experimentally see whether wavelength will affect the time it takes to pop the balloon.

I want to buy pre-assembled laser diodes with a lens, in a housing, with the driver attached. I am looking for three such assemblies: blue, green, and red. I want to find out what laser assemblies I can buy to carry out this experiment. Also, what should the wattage range be for the lasers to pop the balloons at a distance of around 2-5 meters?

Thank you for all your help!

The distance will not make a difference, at the distances you'd need to see a difference you wouldn't be able to pop a balloon.

You need to take into account the beam specs, for this experiment to work each beam would need to have an identical divergence, geometry and power output. Assuming you'd see a difference in the first place. ”

I plan on keeping the power of the lasers, the beam profiles (power density), and the distances between the laser and the black balloon the same for all lasers. For my experiment, I am also assuming that the absorption spectrum of the black balloons are the same. Given that, I want to still experimentally see whether wavelength will affect the time it takes to pop the balloon.

I want to buy pre-assembled laser diodes with a lens, in a housing, with the driver attached. I am looking for three such assemblies: blue, green, and red. I want to find out what laser assemblies I can buy to carry out this experiment. Also, what should the wattage range be for the lasers to pop the balloons at a distance of around 2-5 meters?

Thank you for all your help!

*Everything*else being equal the wavelength won't make a difference. You're welcome to try for yourself of course...