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Laser cooling and trapping of Yb from a thermal source
Umakant D. Rapol, Anusha Krishna, Ajay Wasan +1
We have successfully loaded a magneto-optic trap for Yb atoms from a thermal source without the use of a Zeeman slower. The source is placed close to the trapping region so that it…
Precise measurement of hyperfine intervals using avoided crossing of dressed states
Umakant D. Rapol, Vasant Natarajan
We demonstrate a technique for precisely measuring hyperfine intervals in alkali atoms. The atoms form a three-level system in the presence of a strong control laser and a weak…
Precise fine-structure and hyperfine-structure measurements in Rb
Ayan Banerjee, Dipankar Das, Vasant Natarajan
We demonstrate a new technique for measuring the absolute frequencies of atomic transitions. The technique uses a ring-cavity resonator whose length is calibrated using a reference…
Precise frequency measurements of the D-lines and fine-structure interval in K
Ayan Banerjee, Dipankar Das, Vasant Natarajan
We use a diode laser locked to a Rb transition as the frequency reference along with a scanning Michelson interferometer to make precise measurements on the and lines o…
Frequency locking of tunable diode lasers to a stabilized ring-cavity resonator
Ayan Banerjee, Dipankar Das, Umakant D. Rapol +1
We demonstrate a technique for locking the frequency of a tunable diode laser to a ring-cavity resonator. The resonator is stabilized to a diode laser which is in turn locked to an…
Observation of sub-natural linewidths for cold atoms in a magneto-optic trap
Umakant D. Rapol, Ajay Wasan, Vasant Natarajan
We have studied the absorption of a weak probe beam through cold rubidium atoms in a magneto-optic trap. The absorption spectrum shows two peaks with the smaller peak having linewi…