@inproceedings{CTT100574683, author = {Kiyoshi TSUJI and Keisuke TAKAHATA Hiroaki TESHIMA and Naohiro YOSHIDA}, title = {Spectroscopic measurement of the CH3D/CH4 ratio using difference frequency generation with an efficient periodically poled lithium niobate waveguide}, booktitle = {4th International Symposium on Isotopomers proceedings}, year = 2008, }