How could electromagnetic radiation be used as a power source?

Electromagnetic radiation can be harnessed as a power source through technologies like solar panels, which convert sunlight (a form of electromagnetic radiation) into electricity using photovoltaic cells. Additionally, wireless power transmission methods can capture energy from sources like microwaves or radio waves, allowing for energy to be transmitted over distances without physical connections. Research is also exploring the potential of capturing energy from ambient electromagnetic fields, such as those from radio towers or Wi-Fi, to power small devices.