Harvard researchers create world’s smallest radio reciever

Harvard researchers create world’s smallest radio reciever  Scientists from US based Harvard University‘s John A Paulson School of Engineering and Applied Sciences (SEAS) have developed the world’s smallest radio receiver using atomic-scale defects in pink diamonds.The study was published in the journal Physical Review Applied.This tiny radio would be able to operate in space, in harsh

environments and even the human body and is biocompatible. It uses tiny imperfections in diamonds called nitrogen-vacancy (NV) centres by replace one carbon atom with a nitrogen atom

NV centers can be used to emit electrons or detect very weak magnetic fields.These electrons are sensitive to electromagnetic fields, including the waves used in FM radio.

iv. When NV centre receives radio waves it converts them and emits the audio signal as red light.