Laser Radio (image) Harvard John A. Paulson School of Engineering and Applied Sciences Share Print E-Mail Caption This device uses a frequency comb laser to emit and modulate microwaves wirelessly. The laser uses different frequencies of light beating together to generate microwave radiation. The researchers used this phenomenon to send a song wirelessly to a receiver. Credit Image courtesy of Marco Piccardo/Harvard SEAS Usage Restrictions with credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.