著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Nan Ei Yu and Changsoo Jung and Chul-Sik Kee,Backward terahertz generation in periodically poled lithium niobate crystal via difference frequency generation,"Japanese journal of applied physics. Part. 1, Regular papers, brief communications & review papers : JJAP",00214922,Tokyo : Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics,2007-04,46,4A,1501-1504,https://cir.nii.ac.jp/crid/1520853833174177920,https://doi.org/10.1143/jjap.46.1501