Infrared is not all the same. For one thing the frequency depends on the temperature.
But more importantly it absorbs infrared light, and converts it to heat. Heat and light are not the same thing! True, hot things emit light, but that doesn't make them the same thing.
Most practically you can cool the device once the energy is heat. Or just dilute it in a heatsink.
But more importantly it absorbs infrared light, and converts it to heat. Heat and light are not the same thing! True, hot things emit light, but that doesn't make them the same thing.
Most practically you can cool the device once the energy is heat. Or just dilute it in a heatsink.