We have developed a tunable source of Mie scale microdroplet aerosols that can be used for the generation of energetic ions. To demonstrate this potential, a terawatt Ti:Al2O3 laser focused to 2×1019 W/cm2 was used to irradiate heavy water (D2O) aerosols composed of micron-scale droplets. Energetic deuterium ions, which were generated in the laser-droplet interaction, produced deuterium-deuterium fusion with approximately 2×103 fusion neutrons measured per joule of incident laser energy.
© 2009 American Institute of Physics
A.P. Higginbotham, O. Semonin, S. Bruce, C. Chan, M. Maindi, M. Maurer, W. Bang, I. Churina, J. Osterholz, I. Kim, A.C. Bernstein, T. Ditmire, T. D. Donnelly, "Generation of Mie size microdroplet aerosols with applications in laser-driven fusion experiments," Rev Sci. Instrum., 80, (2009).