Laser-plasma dynamics greatly affect the production of in-band light for lithography in EUV sources. To better tune plasma parameters for efficient EUV production and minimize the production of energetic ions, we explore using modeling in preparation for future experiments to develop and validate higher fidelity predictive capability for EUV sources.
The Advanced Research Project Agency-Energy (ARPA-E) has the mission to advance high-impact technologies that have the potential to transform the energy industry. Fusion energy sits in the highest risk part of the ARPA-E portfolio. Accelerating the development of enabling technologies for Inertial fusion energy (IFE) is a key focus of ARPA-E. ARPA-E intends to surgically target technologies, which will significantly reduce the time to market and engineering risk of any first of a kind commercial fusion power plant. I will provide a summary of existing ARPA-E IFE related programs and the vision for future programs.
Fast ion debris generated in laser-tin droplet interaction is known to degrade the reflectivity of the EUV collector mirror, posing a challenge to the commercial use of the EUV source. In the present work, we conduct one-dimensional fully kinetic Particle-In-Cell simulations using PSC code that is capable of capturing fast ion debris formation. We discuss the progress in the implementation of physics modules for the PSC code that is required to replicate the EUV generation process in detail. We demonstrate decent agreement between our kinetic simulations and radiation hydrodynamics simulations in terms of macroscopic plasma parameters. We also discuss the role of the kinetic effects in EUV and next-generation BEUV sources.
Conference Committee Involvement (1)
Optical Technologies for Inertial Fusion Energy
27 January 2025 | San Francisco, California, United States
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