Wavefront-correction for nearly diffraction limited focusing of dual-color laser beams to high intensities

Authors

• Baozhen Zhao, University of Nebraska-LincolnFollow
• Jun Zhang, University of Nebraska-Lincoln
• Shouyuan Chen, University of Nebraska-LincolnFollow
• Cheng Liu, University of Nebraska-LincolnFollow
• Grigory V. Golovin, University of Nebraska-LincolnFollow
• Sudeep Banerjee, University of Nebraska-LincolnFollow
• Kevin J. Brown, University of Nebraska-LincolnFollow
• Jared Mills, University of Nebraska-Lincoln
• Chad Petersen, University of Nebraska-LincolnFollow
• Donald Umstadter, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

2014

Citation

Optics Express 22, 2014

Comments

Copyright 2014 Used by permission

Abstract

We demonstrate wavefront correction of terawatt-peak-power laser beams at two distinct and well-separated wavelengths. Simultaneous near diffraction-limited focusability is achieved for both the fundamental (800 nm) and second harmonic (400 nm) of Ti:sapphire-amplified laser light. By comparing the relative effectiveness of various correction loops, the optimal ones are found. Simultaneous correction of both beams of different color relies on the linear proportionality between their wavefront aberrations. This method can enable two-color experiments at relativistic intensities.