论文信息 - Hyperfine structure of molecular-iodine absorption spectroscopy at 561nm

Hyperfine structure of molecular-iodine absorption spectroscopy at 561nm

An 1123-nm single-frequency laser with 1-W output power has been made by home, and 10-mW output power double frequency at 561nm is obtained. The modulation transform spectroscopy is used to scan the hyperfine structure lines of molecular iodine absorption spectroscopy transitions at 561nm. Four transition spectroscopy bands of <sup>127</sup>I<inf>2</inf> are observed, and transitions of P(58)22−1 and R(62)22−1 are discussed to be references of 561-nm <sup>127</sup>I<inf>2</inf> optical frequency standard.

[1] K. Holman,et al. Absolute-frequency measurement of the iodine-based length standard at 514.67 nm , 2002 .

[2] F. Hong,et al. Hyperfine structures of the R(122)35-0 and P(84)33-0 transitions of near 532 nm , 2000 .

[3] Tao Yang,et al. Single-frequency 1.25 W monolithic lasers at 1123 nm. , 2007, Optics letters.

[4] A Razet,et al. A tabulation of calculations of the hyperfine structure in 127I2 , 1996 .

[5] A. Raynal,et al. Description of the absorption spectrum of iodine recorded by means of Fourier Transform Spectroscopy : the (B-X) system , 1985 .

[6] Christian Chardonnet,et al. Frequency measurement of an Ar/sup +/ laser stabilized on narrow lines of molecular iodine at 501.7 nm , 2004, IEEE Transactions on Instrumentation and Measurement.

[7] F. Spieweck,et al. Hyperfine structure of the R(98), 58-1 line of 127I2 at 514.5 nm , 1979 .

[8] T J Quinn,et al. Practical realization of the definition of the metre, including recommended radiations of other optical frequency standards (2001) , 2003 .