Measurement of ultrafast dynamics in the interaction of intense laser pulses with gases, clusters, and plasma waveguides
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
Femtosecond time-resolved dynamics in the interaction of high intensity, ultrashort laser pulses with various targets--gases, nanometer-size clusters, and plasma waveguides--was studied using a new ultrafast optical diagnostic: Single-shot supercontinuum spectral interferometry (SSSI). The diagnostic measures ultrarapid transients induced by an intense laser pulse in the complex refractive index of the evolving target medium, providing a direct view of how the laser-produced disturbances, such as plasma densities, evolve in time and space. Using the SSSI diagnostic (i) the laser-induced double step ionization of helium (ii) time-resolved explosion dynamics of intense-laser-heated clusters, and (iii) the coupling and guiding of intense laser pulses injected into a plasma waveguide were examined.
- OSTI ID:
- 20736625
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 12; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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