Plus this new fella works mainly in the infrared, there are so many more photons with a lower energy level than with visible light.
As the energy/frequency levels go up, the number of photons decrease.
The drop between levels can be so dramatic, that around the turn of the 20th century physicists coined a term for the shift to the next level beyond visible light in the opposite direction to infrared - The Ultraviolet Catastrophe.
Plus this new fella works mainly in the infrared, there are so many more photons with a lower energy level than with visible light.
As the energy/frequency levels go up, the number of photons decrease.
The drop between levels can be so dramatic, that around the turn of the 20th century physicists coined a term for the shift to the next level beyond visible light in the opposite direction to infrared - The Ultraviolet Catastrophe.