Outline of the RFTF Program


This publication serves to provide interested scientists with the research results of the RFTF Program, and is thus aimed at contributing to the scientific promotion worldwide.

Doppler-Free High Resolution Spectral Atlas of Iodine Molecule 15,000 to 19,000 cm-1

Hajime Kato (project leader), Masaaki Baba*, Shunji Kasahara, Kiyoshi Ishikawa, Masatoshi Misono, Yasuyuki Kimura, John O'Reilly, Hiroyuki Kuwano, Toshitaka Shimamoto, Toyoki Shinano, Chizuru Fujiwara, Mitsuru Ikeuchi, Nobuyuki Fujita, Md Humayun Kabir, Miho Ushino, Rika Takahashi, and Youko Matsunobu
Faculty of Science, Kobe University, Nada-ku, Kobe, Japan
*Faculty of Integrated Human Studies, Kyoto University, Kyoto, Japan

Published by Japan Society for the Promotion of Science 4,000 pp (8 x 11): ISBN 4-89114-000-3
The absorption spectrum of the iodine molecule in the 15,000 to 19,000 cm-1 region has been measured by applying the technique of Doppler-free laser spectroscopy. Each individual spectrum (approximately 0.52 cm-1 in range) consists of the following:
1) The frequency marks of the etalon which can be used to calculate the absolute wavenumber of a given hyperfine line of I2.
2) The excitation spectrum of I2 which is broadened by the Doppler effect.
3) The Doppler-free absorption spectrum of I2.
All of these were measured simultaneously. The absolute frequency of a transition line in this region can be obtained with a standard deviation of 0.000054 cm-1.

In addition to this printed document, this spectral data is available on an accompanying CDROM (CDROM of the PC version and Mac version are attached). Using this CDROM, it is possible to obtain the absolute wavenumbers of all the hyperfine components in this atlas. This can be used to calibrate the absolute wavenumber of molecular transition lines with accuracy of approximately 0.0001 cm-1.
For further information, please see the following website:
JSPS Research of the Future Program