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5-Hz, 150-TW Ti:sapphire Laser with High Spatiotemporal Quality

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Title
5-Hz, 150-TW Ti:sapphire Laser with High Spatiotemporal Quality
Author(s)
Jae Hee Sung; Jin WooYoon; Il WooChoi; Seong Ku Lee; Hwang Woon Lee; Jeong Moon Yang; Yeong Gyu Kim; Chang Hee Nam
Subject
Femtosecond laser, ; Laser amplifier, ; Ti:sapphire laser
Publication Date
2020-08
Journal
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.77, no.3, pp.223 - 228
Publisher
KOREAN PHYSICAL SOC
Abstract
© 2020, The Korean Physical Society.150-TW, 23-fs laser pulses with high spatial and temporal qualities have been generated at 5 Hz from a chirped-pulse amplification Ti:sapphire laser. The temporal and the spatial qualities of the laser pulse were optimized and characterized for high availability in the fields of high-field science and relativistic laser-matter interactions. The pulse duration was optimized by maximizing the spectral bandwidth and by minimizing the spectral phase error. A temporal contrast was enhanced using an ultrafast Pockels cell and a double plasma mirror, and wavefront aberrations were corrected using an adaptive optics system. Spatiotemporal couplings were characterized by measuring a frequency-resolved wavefront to estimate their effect on the peak intensity at the focus. Due to the high spatiotemporal quality resulting from this optimization and characterization of the laser beam, the 5-Hz 150-TW Ti:sapphire laser will be the workhorse for a variety of research on relativistic laser-matter interactions
URI
https://pr.ibs.re.kr/handle/8788114/7705
DOI
10.3938/jkps.77.223
ISSN
0374-4884
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > 1. Journal Papers (저널논문)
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