Double optical gating for generating isolated attosecond pulses

The double optical gating (DOG) technique developed in our group is a combination of the two-color gating and the polarization gating. The required laser field for DOG can be created by using three optical components. With DOG, isolated attosecond pulses can be generated with either few-cycle or multi-cycle lasers, which relaxes the requirements of the driving laser. It paved the way to upscale the flux of attosecond pulses.

Hiroki Mashiko, Steve Gilbertson, Chengquan Li, Sabih D. Khan, Mahendra M. Shakya, Eric Moon, and Zenghu Chang, “Double optical gating of high-order harmonic generation with carrier-envelope phase stabilized lasers,” Phys. Rev. Lett. 100, 103906 (2008).

Ximao Feng, Steve Gilbertson, Hiroki Mashiko, He Wang, Sabih D. Khan, Michael Chini, Yi Wu, Kun Zhao, and Zenghu Chang, “Generation of isolated attosecond pulses with 20 to 28 femtosecond lasers,” Phys. Rev. Lett. 103, 183901 (2009).

Steve Gilbertson, Michael Chini, Ximao Feng, Sabih Khan, Yi Wu, and Zenghu Chang, “Monitoring and Controlling the Electron Dynamics in Helium with Isolated Attosecond Pulses,” Phys. Rev. Lett. 105, 263003 (2010).