Abstract
Channel formation in a laser produced plasma was studied with the density profile observed by an UV probe beam, X-ray pinhole pictures, and time resolved spectra of back scattered laser light. When a 1053 nm laser light was focused on a preformed plasma created on a 100 μm thick plastic at a laser intensity of 2 × 10 17W/cm 2, the UV probed picture showed a hole on the density profile at the spot of laser focus. The X-ray pinhole picture showed a 30 μm diameter spot on the surface of plastic target, even though the best focus was placed at more than 100 μm in front of the surface. The back scattered light spectra showed a red shift much larger than a normal SBS or Doppler shift. The focused laser beam appeared to self focus over 100 μm distance in a preformed plasma and reached beyond a critical density.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
