@article{oai:nagoya.repo.nii.ac.jp:00031342, author = {Nakamura, Yusuke and Komurasaki, Kimiya}, issue = {10}, journal = {Plasma Sources Science and Technology}, month = {Oct}, note = {Past experiments have shown an ionization front propagation in the millimeter-wave whose intensity was one order lower than the critical intensity of breakdown. Propagation in such a low-intensity region is inexplicable by past theories because no mechanism can enhance ionization sufficiently in the precursor region ahead of bulk plasma. This study examines a new propagation theory incorporating excited neutral particles. The excited neutral particles are carried to the precursor region repeating radiative decay and reabsorption of a photon created by that decay process. Ionization occurs with collisions of an electron and that excited neutral particle. One-dimensional computations were conducted for various power densities of an incident beam to reproduce propagation. The obtained propagation velocities were around 50% of experimental values for quenching frequencies lower than 10^6 s^−1., ファイル公開:2021-10-30}, title = {Theory and modeling of under-critical millimeter-wave discharge in atmospheric air induced by high-energy excited neutral-particles carried via photons}, volume = {29}, year = {2020} }