Title :
Saturated absorption spectroscopy of 127I2 at 532 nm and hyperfine splitting measurements
Author :
Galzerano, G. ; Svelto, C. ; Bertinetto, F. ; Bava, E.
Author_Institution :
Dipt. di Elettronica, Politecnico di Milano, Italy
Abstract :
The hyperfine spectroscopy of the rovibronic P(54)32-0 iodine line at 532 nm has been performed using diode-pumped frequency-doubled Nd:YAG lasers and the frequency modulation technique under saturated absorption conditions. Due to the high stability degree of the optical sources, the hyperfine frequency separations have been measured with an uncertainty lower than 100 Hz. From these measurement data, the hyperfine structure constants for a four term Hamiltonian have been estimated
Keywords :
hyperfine structure; iodine; rotational-vibrational states; visible spectra; 532 nm; 127I2; I2; diode-pumped frequency-doubled Nd:YAG lasers; four term Hamiltonian; frequency modulation technique; high stability degree; hyperfine frequency separations; hyperfine splitting measurements; hyperfine structure constants; optical sources; rovibronic P(54)32-0 I line; saturated absorption conditions; saturated absorption spectroscopy; Absorption; Diodes; Frequency estimation; Frequency measurement; Frequency modulation; Measurement uncertainty; Optical modulation; Optical saturation; Spectroscopy; Stability;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776152
