Abstract

High harmonic interferometry is proposed as a simple method to measure the relative timing of high harmonic emissions from crystalline solids with attosecond-scale resolution. The approach uses a Mach-Zehnder interferometer with high harmonics generated in each arm to capture interferograms, enabling access to sub-cycle electron dynamics. The method is demonstrated on crystalline GaSe and bulk WSe2, including real-time Floquet-state dynamics in WSe2.

Abstract

High harmonic interferometry is proposed as a simple method to measure the relative timing of high harmonic emissions from crystalline solids with attosecond-scale resolution. The approach uses a Mach-Zehnder interferometer with high harmonics generated in each arm to capture interferograms, enabling access to sub-cycle electron dynamics. The method is demonstrated on crystalline GaSe and bulk WSe2, including real-time Floquet-state dynamics in WSe2.

Abstract

High harmonic interferometry is proposed as a simple method to measure the relative timing of high harmonic emissions from crystalline solids with attosecond-scale resolution. The approach uses a Mach-Zehnder interferometer with high harmonics generated in each arm to capture interferograms, enabling access to sub-cycle electron dynamics. The method is demonstrated on crystalline GaSe and bulk WSe2, including real-time Floquet-state dynamics in WSe2.

Abstract

High harmonic interferometry is proposed as a simple method to measure the relative timing of high harmonic emissions from crystalline solids with attosecond-scale resolution. The approach uses a Mach-Zehnder interferometer with high harmonics generated in each arm to capture interferograms, enabling access to sub-cycle electron dynamics. The method is demonstrated on crystalline GaSe and bulk WSe2, including real-time Floquet-state dynamics in WSe2.