@article{oai:nifs-repository.repo.nii.ac.jp:00000104,
 author = {KAWAHATA,  Kazuo and AKIYAMA,  Tsuyoshi and PAVLICHENKO,  Rostislav and ITO,  Yasuhiko and NAKAYAMA,  Kazuya and OKAJIMA,  Shigeki and TSUJI-IIO,  Shunji},
 journal = {Plasma and Fusion Research},
 month = {Jan},
 note = {This paper describes innovative laser diagnostics under development at the National Institute for Fusion Science, aiming for the establishment of reliable density measurement techniques in the next step magnetically
confined fusion devices. There are two approaches, interferometry and polarimetry. A new type of two color laser (47.6/57.2-μm CH3OD) interferometer has been developed and its original function, vibration subtraction,
was confirmed in a test stand. The line integrated density measurement at Compact Helical System by using the polarimeter based on Cotton-Mouton effect was demonstrated by the use of a 337-μm HCN laser source.},
 title = {Advanced Laser Diagnostics for Electron Density Measurements},
 volume = {Vol.2},
 year = {2007}
}