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To realize the ultrahigh intensity over 10^23 W/cm^2, we carried out the wavefront correction and tight focusing of the CoReLS petawatt laser. By the wavefront correction and tight focusing of the CoReLS petawatt laser with two-stage adaptive optics systems and an f/1.1 (f=300 mm) off-axis parabolic mirror, we obtained a near-diffraction-limited focal spot. The measured peak intensity was (1.1±0.1)×10^23 W/cm2, the first realization of the laser intensity over 10^23 W/cm^2. With the PW laser of intensity over 10^23 W/cm^2, we plan to explore strong field QED phenomena and proton/ion acceleration dominated by the RPA mechanism.
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Jin Woo Yoon, Il Woo Choi, Jae Hee Sung, Yeong Gyu Kim, Hwang Woon Lee, Seong Ku Lee, Chang Hee Nam, "Generation of the laser intensity exceeding 10^23 W/cm^2," Proc. SPIE 11890, Advanced Lasers, High-Power Lasers, and Applications XII, 118900A (9 October 2021); https://doi.org/10.1117/12.2603235