Science Daily May 17, 2018
The existing method to study the shape of laser pulses relies on the generation of attosecond X-ray pulses which requires detection equipment in vacuum chambers. Researchers in South Korea demonstrate that an arbitrary time-dependent laser field can be directly sampled using subcycle tunneling ionization in a gaseous medium or in air. This unique approach enables the complete temporal characterization of the laser field, including its carrier-envelope phase, for a broad spectral range in ambient air, providing a universal tool for the precise measurement of the laser field… read more. Open Access TECHNICAL ARTICLE
Special mirrors divide a laser beam into a strong (EF) and a weak (ES) laser pulses. Credit: IBS