Photoemission Induced Plasma Breakdown (Update)

Technical Report · Mon Oct 17 00:00:00 EDT 2022

DOI:https://doi.org/10.2172/1893988· OSTI ID:1893988

Bentz, Brian Z. ^[1]; Youngman, Kevin ^[1]; Iqbal, Asif ^[2]; Zhou, Yang ^[2]; Zhang, Peng ^[2]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
2. Michigan State Univ., East Lansing, MI (United States)

Laser-induced photoemission of electrons offers opportunities to trigger and control plasmas and discharges. However, the underlying mechanisms are not sufficiently characterized to be fully utilized. Photoemission is highly nonlinear, achieved through multiphoton absorption, above threshold ionization, photo-assisted tunneling, etc., where the dominant process depends on the work function of the material, photon energy and associated fields, surface heating, background fields, etc. To characterize the effects of photoemission on breakdown, breakdown experiments were performed and interpreted using a 0D plasma discharge circuit model and quantum model of photoemission.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: NA0003525
• OSTI ID: 1893988
• Report Number(s): SAND2022-14427R; 711178
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY