Rubidium absorption spectroscopy

Adrian Wyngaard

P. M. Rupasinghe, Trieu Le, Elina van Kempen

Prathan Buranasiri, Nut Thanaboonrungroch, Witoon Yindeesuk +1 more

In this research, the effect of temperature on the absorption of rubidium vapor cell D2 line was studied by Two-photon absorption spectroscopy. The diameter and length of cylindrical rubidium vapor cell used in this research are 25.65 mm and 82.12 mm, respectively. The temperature of rubidium cell was varied from room temperature to approximately 80 °C using a peltier-thermoelctric module. The laser diode at 778 nm was used as a light source for two-photon absorption spectroscopy. The absorption spectra of rubidium D2 hyperfine transitions were recorded in the range of 200-1100 nm .The results show that the absorption peak at high temperature is higher than that of lower temperature.

T. Rieper, T. Rose, Volkmar Helbig +1 more

Jason L. Bowie, Jack Boyce, R. Y. Chiao

Using an external cavity-tuned diode laser in Doppler-free saturation spectroscopy, we are able to resolve the weak-field Zeeman splittings in the hyperfine levels of the rubidium D1 line. The number of lines observed in the Zeeman structure of rubidium and their measured energy-level splittings are as expected from theory. The measured amplitudes of the saturated-absorption signals, crossover resonances, and velocity-selective optical pumping signals are used in the analysis of various theories concerning saturated-absorption spectroscopy.

James H. Stanley, R. Seth Smith